Index: head/sys/net80211/ieee80211.h =================================================================== --- head/sys/net80211/ieee80211.h (revision 297007) +++ head/sys/net80211/ieee80211.h (revision 297008) @@ -1,1336 +1,1336 @@ /*- * Copyright (c) 2001 Atsushi Onoe * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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. * * $FreeBSD$ */ #ifndef _NET80211_IEEE80211_H_ #define _NET80211_IEEE80211_H_ /* * 802.11 protocol definitions. */ #define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */ /* is 802.11 address multicast/broadcast? */ #define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01) #ifdef _KERNEL extern const uint8_t ieee80211broadcastaddr[]; #endif typedef uint16_t ieee80211_seq; /* IEEE 802.11 PLCP header */ struct ieee80211_plcp_hdr { uint16_t i_sfd; uint8_t i_signal; uint8_t i_service; uint16_t i_length; uint16_t i_crc; } __packed; #define IEEE80211_PLCP_SFD 0xF3A0 #define IEEE80211_PLCP_SERVICE 0x00 #define IEEE80211_PLCP_SERVICE_LOCKED 0x04 #define IEEE80211_PLCL_SERVICE_PBCC 0x08 #define IEEE80211_PLCP_SERVICE_LENEXT5 0x20 #define IEEE80211_PLCP_SERVICE_LENEXT6 0x40 #define IEEE80211_PLCP_SERVICE_LENEXT7 0x80 /* * generic definitions for IEEE 802.11 frames */ struct ieee80211_frame { uint8_t i_fc[2]; uint8_t i_dur[2]; uint8_t i_addr1[IEEE80211_ADDR_LEN]; uint8_t i_addr2[IEEE80211_ADDR_LEN]; uint8_t i_addr3[IEEE80211_ADDR_LEN]; uint8_t i_seq[2]; /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ /* see below */ } __packed; struct ieee80211_qosframe { uint8_t i_fc[2]; uint8_t i_dur[2]; uint8_t i_addr1[IEEE80211_ADDR_LEN]; uint8_t i_addr2[IEEE80211_ADDR_LEN]; uint8_t i_addr3[IEEE80211_ADDR_LEN]; uint8_t i_seq[2]; uint8_t i_qos[2]; /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ /* see below */ } __packed; struct ieee80211_qoscntl { uint8_t i_qos[2]; }; struct ieee80211_frame_addr4 { uint8_t i_fc[2]; uint8_t i_dur[2]; uint8_t i_addr1[IEEE80211_ADDR_LEN]; uint8_t i_addr2[IEEE80211_ADDR_LEN]; uint8_t i_addr3[IEEE80211_ADDR_LEN]; uint8_t i_seq[2]; uint8_t i_addr4[IEEE80211_ADDR_LEN]; } __packed; struct ieee80211_qosframe_addr4 { uint8_t i_fc[2]; uint8_t i_dur[2]; uint8_t i_addr1[IEEE80211_ADDR_LEN]; uint8_t i_addr2[IEEE80211_ADDR_LEN]; uint8_t i_addr3[IEEE80211_ADDR_LEN]; uint8_t i_seq[2]; uint8_t i_addr4[IEEE80211_ADDR_LEN]; uint8_t i_qos[2]; } __packed; #define IEEE80211_FC0_VERSION_MASK 0x03 #define IEEE80211_FC0_VERSION_SHIFT 0 #define IEEE80211_FC0_VERSION_0 0x00 #define IEEE80211_FC0_TYPE_MASK 0x0c #define IEEE80211_FC0_TYPE_SHIFT 2 #define IEEE80211_FC0_TYPE_MGT 0x00 #define IEEE80211_FC0_TYPE_CTL 0x04 #define IEEE80211_FC0_TYPE_DATA 0x08 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0 #define IEEE80211_FC0_SUBTYPE_SHIFT 4 /* for TYPE_MGT */ #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 #define IEEE80211_FC0_SUBTYPE_TIMING_ADV 0x60 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 #define IEEE80211_FC0_SUBTYPE_ACTION 0xd0 #define IEEE80211_FC0_SUBTYPE_ACTION_NOACK 0xe0 /* for TYPE_CTL */ #define IEEE80211_FC0_SUBTYPE_CONTROL_WRAP 0x70 #define IEEE80211_FC0_SUBTYPE_BAR 0x80 #define IEEE80211_FC0_SUBTYPE_BA 0x90 #define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0 #define IEEE80211_FC0_SUBTYPE_RTS 0xb0 #define IEEE80211_FC0_SUBTYPE_CTS 0xc0 #define IEEE80211_FC0_SUBTYPE_ACK 0xd0 #define IEEE80211_FC0_SUBTYPE_CF_END 0xe0 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0 /* for TYPE_DATA (bit combination) */ #define IEEE80211_FC0_SUBTYPE_DATA 0x00 #define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10 #define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20 #define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30 #define IEEE80211_FC0_SUBTYPE_NODATA 0x40 #define IEEE80211_FC0_SUBTYPE_CFACK 0x50 #define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 #define IEEE80211_FC0_SUBTYPE_QOS 0x80 #define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0 #define IEEE80211_FC1_DIR_MASK 0x03 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ #define IEEE80211_IS_DSTODS(wh) \ (((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS) #define IEEE80211_FC1_MORE_FRAG 0x04 #define IEEE80211_FC1_RETRY 0x08 #define IEEE80211_FC1_PWR_MGT 0x10 #define IEEE80211_FC1_MORE_DATA 0x20 #define IEEE80211_FC1_PROTECTED 0x40 #define IEEE80211_FC1_ORDER 0x80 #define IEEE80211_HAS_SEQ(type, subtype) \ ((type) != IEEE80211_FC0_TYPE_CTL && \ !((type) == IEEE80211_FC0_TYPE_DATA && \ ((subtype) & IEEE80211_FC0_SUBTYPE_QOS_NULL) == \ IEEE80211_FC0_SUBTYPE_QOS_NULL)) #define IEEE80211_SEQ_FRAG_MASK 0x000f #define IEEE80211_SEQ_FRAG_SHIFT 0 #define IEEE80211_SEQ_SEQ_MASK 0xfff0 #define IEEE80211_SEQ_SEQ_SHIFT 4 #define IEEE80211_SEQ_RANGE 4096 #define IEEE80211_SEQ_ADD(seq, incr) \ (((seq) + (incr)) & (IEEE80211_SEQ_RANGE-1)) #define IEEE80211_SEQ_INC(seq) IEEE80211_SEQ_ADD(seq,1) #define IEEE80211_SEQ_SUB(a, b) \ (((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE-1)) #define IEEE80211_SEQ_BA_RANGE 2048 /* 2^11 */ #define IEEE80211_SEQ_BA_BEFORE(a, b) \ (IEEE80211_SEQ_SUB(b, a+1) < IEEE80211_SEQ_BA_RANGE-1) #define IEEE80211_NWID_LEN 32 #define IEEE80211_MESHID_LEN 32 #define IEEE80211_QOS_TXOP 0x00ff /* bit 8 is reserved */ #define IEEE80211_QOS_AMSDU 0x80 #define IEEE80211_QOS_AMSDU_S 7 #define IEEE80211_QOS_ACKPOLICY 0x60 #define IEEE80211_QOS_ACKPOLICY_S 5 #define IEEE80211_QOS_ACKPOLICY_NOACK 0x20 /* No ACK required */ #define IEEE80211_QOS_ACKPOLICY_BA 0x60 /* Block ACK */ #define IEEE80211_QOS_EOSP 0x10 /* EndOfService Period*/ #define IEEE80211_QOS_EOSP_S 4 #define IEEE80211_QOS_TID 0x0f /* qos[1] byte used for all frames sent by mesh STAs in a mesh BSS */ #define IEEE80211_QOS_MC 0x01 /* Mesh control */ /* Mesh power save level*/ #define IEEE80211_QOS_MESH_PSL 0x02 /* Mesh Receiver Service Period Initiated */ #define IEEE80211_QOS_RSPI 0x04 /* bits 11 to 15 reserved */ /* does frame have QoS sequence control data */ #define IEEE80211_QOS_HAS_SEQ(wh) \ (((wh)->i_fc[0] & \ (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \ (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS)) /* * WME/802.11e information element. */ struct ieee80211_wme_info { uint8_t wme_id; /* IEEE80211_ELEMID_VENDOR */ uint8_t wme_len; /* length in bytes */ uint8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */ uint8_t wme_type; /* OUI type */ uint8_t wme_subtype; /* OUI subtype */ uint8_t wme_version; /* spec revision */ uint8_t wme_info; /* QoS info */ } __packed; /* * WME/802.11e Tspec Element */ struct ieee80211_wme_tspec { uint8_t ts_id; uint8_t ts_len; uint8_t ts_oui[3]; uint8_t ts_oui_type; uint8_t ts_oui_subtype; uint8_t ts_version; uint8_t ts_tsinfo[3]; uint8_t ts_nom_msdu[2]; uint8_t ts_max_msdu[2]; uint8_t ts_min_svc[4]; uint8_t ts_max_svc[4]; uint8_t ts_inactv_intv[4]; uint8_t ts_susp_intv[4]; uint8_t ts_start_svc[4]; uint8_t ts_min_rate[4]; uint8_t ts_mean_rate[4]; uint8_t ts_max_burst[4]; uint8_t ts_min_phy[4]; uint8_t ts_peak_rate[4]; uint8_t ts_delay[4]; uint8_t ts_surplus[2]; uint8_t ts_medium_time[2]; } __packed; /* * WME AC parameter field */ struct ieee80211_wme_acparams { uint8_t acp_aci_aifsn; uint8_t acp_logcwminmax; uint16_t acp_txop; } __packed; #define WME_NUM_AC 4 /* 4 AC categories */ #define WME_NUM_TID 16 /* 16 tids */ #define WME_PARAM_ACI 0x60 /* Mask for ACI field */ #define WME_PARAM_ACI_S 5 /* Shift for ACI field */ #define WME_PARAM_ACM 0x10 /* Mask for ACM bit */ #define WME_PARAM_ACM_S 4 /* Shift for ACM bit */ #define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */ #define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */ #define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */ #define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */ #define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */ #define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */ #define WME_AC_TO_TID(_ac) ( \ ((_ac) == WME_AC_VO) ? 6 : \ ((_ac) == WME_AC_VI) ? 5 : \ ((_ac) == WME_AC_BK) ? 1 : \ 0) #define TID_TO_WME_AC(_tid) ( \ ((_tid) == 0 || (_tid) == 3) ? WME_AC_BE : \ ((_tid) < 3) ? WME_AC_BK : \ ((_tid) < 6) ? WME_AC_VI : \ WME_AC_VO) /* * WME Parameter Element */ struct ieee80211_wme_param { uint8_t param_id; uint8_t param_len; uint8_t param_oui[3]; uint8_t param_oui_type; uint8_t param_oui_subtype; uint8_t param_version; uint8_t param_qosInfo; #define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */ uint8_t param_reserved; struct ieee80211_wme_acparams params_acParams[WME_NUM_AC]; } __packed; /* * Management Notification Frame */ struct ieee80211_mnf { uint8_t mnf_category; uint8_t mnf_action; uint8_t mnf_dialog; uint8_t mnf_status; } __packed; #define MNF_SETUP_REQ 0 #define MNF_SETUP_RESP 1 #define MNF_TEARDOWN 2 /* * 802.11n Management Action Frames */ /* generic frame format */ struct ieee80211_action { uint8_t ia_category; uint8_t ia_action; } __packed; #define IEEE80211_ACTION_CAT_SM 0 /* Spectrum Management */ #define IEEE80211_ACTION_CAT_QOS 1 /* QoS */ #define IEEE80211_ACTION_CAT_DLS 2 /* DLS */ #define IEEE80211_ACTION_CAT_BA 3 /* BA */ #define IEEE80211_ACTION_CAT_HT 7 /* HT */ #define IEEE80211_ACTION_CAT_MESH 13 /* Mesh */ #define IEEE80211_ACTION_CAT_SELF_PROT 15 /* Self-protected */ /* 16 - 125 reserved */ #define IEEE80211_ACTION_VHT 21 #define IEEE80211_ACTION_CAT_VENDOR 127 /* Vendor Specific */ #define IEEE80211_ACTION_HT_TXCHWIDTH 0 /* recommended xmit chan width*/ #define IEEE80211_ACTION_HT_MIMOPWRSAVE 1 /* MIMO power save */ /* HT - recommended transmission channel width */ struct ieee80211_action_ht_txchwidth { struct ieee80211_action at_header; uint8_t at_chwidth; } __packed; #define IEEE80211_A_HT_TXCHWIDTH_20 0 #define IEEE80211_A_HT_TXCHWIDTH_2040 1 /* HT - MIMO Power Save (NB: D2.04) */ struct ieee80211_action_ht_mimopowersave { struct ieee80211_action am_header; uint8_t am_control; } __packed; #define IEEE80211_A_HT_MIMOPWRSAVE_ENA 0x01 /* PS enabled */ #define IEEE80211_A_HT_MIMOPWRSAVE_MODE 0x02 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE_S 1 #define IEEE80211_A_HT_MIMOPWRSAVE_DYNAMIC 0x02 /* Dynamic Mode */ #define IEEE80211_A_HT_MIMOPWRSAVE_STATIC 0x00 /* no SM packets */ /* bits 2-7 reserved */ /* Block Ack actions */ #define IEEE80211_ACTION_BA_ADDBA_REQUEST 0 /* ADDBA request */ #define IEEE80211_ACTION_BA_ADDBA_RESPONSE 1 /* ADDBA response */ #define IEEE80211_ACTION_BA_DELBA 2 /* DELBA */ /* Block Ack Parameter Set */ #define IEEE80211_BAPS_BUFSIZ 0xffc0 /* buffer size */ #define IEEE80211_BAPS_BUFSIZ_S 6 #define IEEE80211_BAPS_TID 0x003c /* TID */ #define IEEE80211_BAPS_TID_S 2 #define IEEE80211_BAPS_POLICY 0x0002 /* block ack policy */ #define IEEE80211_BAPS_POLICY_S 1 #define IEEE80211_BAPS_POLICY_DELAYED (0< IEEE80211_MIN_LEN. The default * mtu is Ethernet-compatible; it's set by ether_ifattach. */ #define IEEE80211_MTU_MAX 2290 #define IEEE80211_MTU_MIN 32 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) #define IEEE80211_ACK_LEN \ (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) #define IEEE80211_MIN_LEN \ (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) /* * The 802.11 spec says at most 2007 stations may be * associated at once. For most AP's this is way more * than is feasible so we use a default of IEEE80211_AID_DEF. * This number may be overridden by the driver and/or by * user configuration but may not be less than IEEE80211_AID_MIN * (see _ieee80211.h for implementation-specific settings). */ #define IEEE80211_AID_MAX 2007 #define IEEE80211_AID(b) ((b) &~ 0xc000) /* * RTS frame length parameters. The default is specified in * the 802.11 spec as 512; we treat it as implementation-dependent * so it's defined in ieee80211_var.h. The max may be wrong * for jumbo frames. */ #define IEEE80211_RTS_MIN 1 #define IEEE80211_RTS_MAX 2346 /* * TX fragmentation parameters. As above for RTS, we treat * default as implementation-dependent so define it elsewhere. */ #define IEEE80211_FRAG_MIN 256 #define IEEE80211_FRAG_MAX 2346 /* * Beacon interval (TU's). Min+max come from WiFi requirements. * As above, we treat default as implementation-dependent so * define it elsewhere. */ #define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */ #define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */ /* * DTIM period (beacons). Min+max are not really defined * by the protocol but we want them publicly visible so * define them here. */ #define IEEE80211_DTIM_MAX 15 /* max DTIM period */ #define IEEE80211_DTIM_MIN 1 /* min DTIM period */ /* * Beacon miss threshold (beacons). As for DTIM, we define * them here to be publicly visible. Note the max may be * clamped depending on device capabilities. */ #define IEEE80211_HWBMISS_MIN 1 #define IEEE80211_HWBMISS_MAX 255 /* * 802.11 frame duration definitions. */ struct ieee80211_duration { uint16_t d_rts_dur; uint16_t d_data_dur; uint16_t d_plcp_len; uint8_t d_residue; /* unused octets in time slot */ }; /* One Time Unit (TU) is 1Kus = 1024 microseconds. */ #define IEEE80211_DUR_TU 1024 /* IEEE 802.11b durations for DSSS PHY in microseconds */ #define IEEE80211_DUR_DS_LONG_PREAMBLE 144 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 #define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 #define IEEE80211_DUR_DS_FAST_PLCPHDR 24 #define IEEE80211_DUR_DS_SLOW_ACK 112 #define IEEE80211_DUR_DS_FAST_ACK 56 #define IEEE80211_DUR_DS_SLOW_CTS 112 #define IEEE80211_DUR_DS_FAST_CTS 56 #define IEEE80211_DUR_DS_SLOT 20 #define IEEE80211_DUR_DS_SIFS 10 #define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) #define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 2 * IEEE80211_DUR_DS_SLOT) #define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ IEEE80211_DUR_DS_SLOW_ACK + \ IEEE80211_DUR_DS_LONG_PREAMBLE + \ IEEE80211_DUR_DS_SLOW_PLCPHDR + \ IEEE80211_DUR_DIFS) #endif /* _NET80211_IEEE80211_H_ */ Index: head/sys/net80211/ieee80211_input.c =================================================================== --- head/sys/net80211/ieee80211_input.c (revision 297007) +++ head/sys/net80211/ieee80211_input.c (revision 297008) @@ -1,980 +1,981 @@ /*- * Copyright (c) 2001 Atsushi Onoe * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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. */ #include __FBSDID("$FreeBSD$"); #include "opt_wlan.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef IEEE80211_SUPPORT_MESH #include #endif #include #ifdef INET #include #include #endif static void ieee80211_process_mimo(struct ieee80211_node *ni, struct ieee80211_rx_stats *rx) { int i; /* Verify the required MIMO bits are set */ if ((rx->r_flags & (IEEE80211_R_C_CHAIN | IEEE80211_R_C_NF | IEEE80211_R_C_RSSI)) != (IEEE80211_R_C_CHAIN | IEEE80211_R_C_NF | IEEE80211_R_C_RSSI)) return; /* XXX This assumes the MIMO radios have both ctl and ext chains */ for (i = 0; i < MIN(rx->c_chain, IEEE80211_MAX_CHAINS); i++) { IEEE80211_RSSI_LPF(ni->ni_mimo_rssi_ctl[i], rx->c_rssi_ctl[i]); IEEE80211_RSSI_LPF(ni->ni_mimo_rssi_ext[i], rx->c_rssi_ext[i]); } /* XXX This also assumes the MIMO radios have both ctl and ext chains */ for(i = 0; i < MIN(rx->c_chain, IEEE80211_MAX_CHAINS); i++) { ni->ni_mimo_noise_ctl[i] = rx->c_nf_ctl[i]; ni->ni_mimo_noise_ext[i] = rx->c_nf_ext[i]; } ni->ni_mimo_chains = rx->c_chain; } int ieee80211_input_mimo(struct ieee80211_node *ni, struct mbuf *m, struct ieee80211_rx_stats *rx) { struct ieee80211_rx_stats rxs; if (rx) { memcpy(&rxs, rx, sizeof(*rx)); } else { /* try to read from mbuf */ bzero(&rxs, sizeof(rxs)); ieee80211_get_rx_params(m, &rxs); } /* XXX should assert IEEE80211_R_NF and IEEE80211_R_RSSI are set */ ieee80211_process_mimo(ni, &rxs); //return ieee80211_input(ni, m, rx->rssi, rx->nf); return ni->ni_vap->iv_input(ni, m, &rxs, rxs.rssi, rxs.nf); } int ieee80211_input_all(struct ieee80211com *ic, struct mbuf *m, int rssi, int nf) { struct ieee80211_rx_stats rx; rx.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; rx.nf = nf; rx.rssi = rssi; return ieee80211_input_mimo_all(ic, m, &rx); } int ieee80211_input_mimo_all(struct ieee80211com *ic, struct mbuf *m, struct ieee80211_rx_stats *rx) { struct ieee80211_rx_stats rxs; struct ieee80211vap *vap; int type = -1; m->m_flags |= M_BCAST; /* NB: mark for bpf tap'ing */ if (rx) { memcpy(&rxs, rx, sizeof(*rx)); } else { /* try to read from mbuf */ bzero(&rxs, sizeof(rxs)); ieee80211_get_rx_params(m, &rxs); } /* XXX locking */ TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { struct ieee80211_node *ni; struct mbuf *mcopy; /* NB: could check for IFF_UP but this is cheaper */ if (vap->iv_state == IEEE80211_S_INIT) continue; /* * WDS vap's only receive directed traffic from the * station at the ``far end''. That traffic should * be passed through the AP vap the station is associated * to--so don't spam them with mcast frames. */ if (vap->iv_opmode == IEEE80211_M_WDS) continue; if (TAILQ_NEXT(vap, iv_next) != NULL) { /* * Packet contents are changed by ieee80211_decap * so do a deep copy of the packet. */ mcopy = m_dup(m, M_NOWAIT); if (mcopy == NULL) { /* XXX stat+msg */ continue; } } else { mcopy = m; m = NULL; } ni = ieee80211_ref_node(vap->iv_bss); type = ieee80211_input_mimo(ni, mcopy, &rxs); ieee80211_free_node(ni); } if (m != NULL) /* no vaps, reclaim mbuf */ m_freem(m); return type; } /* * This function reassembles fragments. * * XXX should handle 3 concurrent reassemblies per-spec. */ struct mbuf * ieee80211_defrag(struct ieee80211_node *ni, struct mbuf *m, int hdrspace) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *); struct ieee80211_frame *lwh; uint16_t rxseq; uint8_t fragno; uint8_t more_frag = wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG; struct mbuf *mfrag; KASSERT(!IEEE80211_IS_MULTICAST(wh->i_addr1), ("multicast fragm?")); rxseq = le16toh(*(uint16_t *)wh->i_seq); fragno = rxseq & IEEE80211_SEQ_FRAG_MASK; /* Quick way out, if there's nothing to defragment */ if (!more_frag && fragno == 0 && ni->ni_rxfrag[0] == NULL) return m; /* * Remove frag to insure it doesn't get reaped by timer. */ if (ni->ni_table == NULL) { /* * Should never happen. If the node is orphaned (not in * the table) then input packets should not reach here. * Otherwise, a concurrent request that yanks the table * should be blocked by other interlocking and/or by first * shutting the driver down. Regardless, be defensive * here and just bail */ /* XXX need msg+stat */ m_freem(m); return NULL; } IEEE80211_NODE_LOCK(ni->ni_table); mfrag = ni->ni_rxfrag[0]; ni->ni_rxfrag[0] = NULL; IEEE80211_NODE_UNLOCK(ni->ni_table); /* * Validate new fragment is in order and * related to the previous ones. */ if (mfrag != NULL) { uint16_t last_rxseq; lwh = mtod(mfrag, struct ieee80211_frame *); last_rxseq = le16toh(*(uint16_t *)lwh->i_seq); /* NB: check seq # and frag together */ if (rxseq != last_rxseq+1 || !IEEE80211_ADDR_EQ(wh->i_addr1, lwh->i_addr1) || !IEEE80211_ADDR_EQ(wh->i_addr2, lwh->i_addr2)) { /* * Unrelated fragment or no space for it, * clear current fragments. */ m_freem(mfrag); mfrag = NULL; } } if (mfrag == NULL) { if (fragno != 0) { /* !first fragment, discard */ vap->iv_stats.is_rx_defrag++; IEEE80211_NODE_STAT(ni, rx_defrag); m_freem(m); return NULL; } mfrag = m; } else { /* concatenate */ m_adj(m, hdrspace); /* strip header */ m_catpkt(mfrag, m); /* track last seqnum and fragno */ lwh = mtod(mfrag, struct ieee80211_frame *); *(uint16_t *) lwh->i_seq = *(uint16_t *) wh->i_seq; } if (more_frag) { /* more to come, save */ ni->ni_rxfragstamp = ticks; ni->ni_rxfrag[0] = mfrag; mfrag = NULL; } return mfrag; } void ieee80211_deliver_data(struct ieee80211vap *vap, struct ieee80211_node *ni, struct mbuf *m) { struct ether_header *eh = mtod(m, struct ether_header *); struct ifnet *ifp = vap->iv_ifp; /* clear driver/net80211 flags before passing up */ m->m_flags &= ~(M_MCAST | M_BCAST); m_clrprotoflags(m); /* NB: see hostap_deliver_data, this path doesn't handle hostap */ KASSERT(vap->iv_opmode != IEEE80211_M_HOSTAP, ("gack, hostap")); /* * Do accounting. */ if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); IEEE80211_NODE_STAT(ni, rx_data); IEEE80211_NODE_STAT_ADD(ni, rx_bytes, m->m_pkthdr.len); if (ETHER_IS_MULTICAST(eh->ether_dhost)) { m->m_flags |= M_MCAST; /* XXX M_BCAST? */ IEEE80211_NODE_STAT(ni, rx_mcast); } else IEEE80211_NODE_STAT(ni, rx_ucast); m->m_pkthdr.rcvif = ifp; if (ni->ni_vlan != 0) { /* attach vlan tag */ m->m_pkthdr.ether_vtag = ni->ni_vlan; m->m_flags |= M_VLANTAG; } ifp->if_input(ifp, m); } struct mbuf * ieee80211_decap(struct ieee80211vap *vap, struct mbuf *m, int hdrlen) { struct ieee80211_qosframe_addr4 wh; struct ether_header *eh; struct llc *llc; KASSERT(hdrlen <= sizeof(wh), ("hdrlen %d > max %zd", hdrlen, sizeof(wh))); if (m->m_len < hdrlen + sizeof(*llc) && (m = m_pullup(m, hdrlen + sizeof(*llc))) == NULL) { vap->iv_stats.is_rx_tooshort++; /* XXX msg */ return NULL; } memcpy(&wh, mtod(m, caddr_t), hdrlen); llc = (struct llc *)(mtod(m, caddr_t) + hdrlen); if (llc->llc_dsap == LLC_SNAP_LSAP && llc->llc_ssap == LLC_SNAP_LSAP && llc->llc_control == LLC_UI && llc->llc_snap.org_code[0] == 0 && llc->llc_snap.org_code[1] == 0 && llc->llc_snap.org_code[2] == 0 && /* NB: preserve AppleTalk frames that have a native SNAP hdr */ !(llc->llc_snap.ether_type == htons(ETHERTYPE_AARP) || llc->llc_snap.ether_type == htons(ETHERTYPE_IPX))) { m_adj(m, hdrlen + sizeof(struct llc) - sizeof(*eh)); llc = NULL; } else { m_adj(m, hdrlen - sizeof(*eh)); } eh = mtod(m, struct ether_header *); switch (wh.i_fc[1] & IEEE80211_FC1_DIR_MASK) { case IEEE80211_FC1_DIR_NODS: IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr1); IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr2); break; case IEEE80211_FC1_DIR_TODS: IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr3); IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr2); break; case IEEE80211_FC1_DIR_FROMDS: IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr1); IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr3); break; case IEEE80211_FC1_DIR_DSTODS: IEEE80211_ADDR_COPY(eh->ether_dhost, wh.i_addr3); IEEE80211_ADDR_COPY(eh->ether_shost, wh.i_addr4); break; } #ifndef __NO_STRICT_ALIGNMENT if (!ALIGNED_POINTER(mtod(m, caddr_t) + sizeof(*eh), uint32_t)) { m = ieee80211_realign(vap, m, sizeof(*eh)); if (m == NULL) return NULL; } #endif /* !__NO_STRICT_ALIGNMENT */ if (llc != NULL) { eh = mtod(m, struct ether_header *); eh->ether_type = htons(m->m_pkthdr.len - sizeof(*eh)); } return m; } /* * Decap a frame encapsulated in a fast-frame/A-MSDU. */ struct mbuf * ieee80211_decap1(struct mbuf *m, int *framelen) { #define FF_LLC_SIZE (sizeof(struct ether_header) + sizeof(struct llc)) struct ether_header *eh; struct llc *llc; /* * The frame has an 802.3 header followed by an 802.2 * LLC header. The encapsulated frame length is in the * first header type field; save that and overwrite it * with the true type field found in the second. Then * copy the 802.3 header up to where it belongs and * adjust the mbuf contents to remove the void. */ if (m->m_len < FF_LLC_SIZE && (m = m_pullup(m, FF_LLC_SIZE)) == NULL) return NULL; eh = mtod(m, struct ether_header *); /* 802.3 header is first */ llc = (struct llc *)&eh[1]; /* 802.2 header follows */ *framelen = ntohs(eh->ether_type) /* encap'd frame size */ + sizeof(struct ether_header) - sizeof(struct llc); eh->ether_type = llc->llc_un.type_snap.ether_type; ovbcopy(eh, mtod(m, uint8_t *) + sizeof(struct llc), sizeof(struct ether_header)); m_adj(m, sizeof(struct llc)); return m; #undef FF_LLC_SIZE } /* * Install received rate set information in the node's state block. */ int ieee80211_setup_rates(struct ieee80211_node *ni, const uint8_t *rates, const uint8_t *xrates, int flags) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211_rateset *rs = &ni->ni_rates; memset(rs, 0, sizeof(*rs)); rs->rs_nrates = rates[1]; memcpy(rs->rs_rates, rates + 2, rs->rs_nrates); if (xrates != NULL) { uint8_t nxrates; /* * Tack on 11g extended supported rate element. */ nxrates = xrates[1]; if (rs->rs_nrates + nxrates > IEEE80211_RATE_MAXSIZE) { nxrates = IEEE80211_RATE_MAXSIZE - rs->rs_nrates; IEEE80211_NOTE(vap, IEEE80211_MSG_XRATE, ni, "extended rate set too large; only using " "%u of %u rates", nxrates, xrates[1]); vap->iv_stats.is_rx_rstoobig++; } memcpy(rs->rs_rates + rs->rs_nrates, xrates+2, nxrates); rs->rs_nrates += nxrates; } return ieee80211_fix_rate(ni, rs, flags); } /* * Send a management frame error response to the specified * station. If ni is associated with the station then use * it; otherwise allocate a temporary node suitable for * transmitting the frame and then free the reference so * it will go away as soon as the frame has been transmitted. */ void ieee80211_send_error(struct ieee80211_node *ni, const uint8_t mac[IEEE80211_ADDR_LEN], int subtype, int arg) { struct ieee80211vap *vap = ni->ni_vap; int istmp; if (ni == vap->iv_bss) { if (vap->iv_state != IEEE80211_S_RUN) { /* * XXX hack until we get rid of this routine. * We can be called prior to the vap reaching * run state under certain conditions in which * case iv_bss->ni_chan will not be setup. * Check for this explicitly and and just ignore * the request. */ return; } ni = ieee80211_tmp_node(vap, mac); if (ni == NULL) { /* XXX msg */ return; } istmp = 1; } else istmp = 0; IEEE80211_SEND_MGMT(ni, subtype, arg); if (istmp) ieee80211_free_node(ni); } int ieee80211_alloc_challenge(struct ieee80211_node *ni) { if (ni->ni_challenge == NULL) ni->ni_challenge = (uint32_t *) IEEE80211_MALLOC(IEEE80211_CHALLENGE_LEN, M_80211_NODE, IEEE80211_M_NOWAIT); if (ni->ni_challenge == NULL) { IEEE80211_NOTE(ni->ni_vap, IEEE80211_MSG_DEBUG | IEEE80211_MSG_AUTH, ni, "%s", "shared key challenge alloc failed"); /* XXX statistic */ } return (ni->ni_challenge != NULL); } /* * Parse a Beacon or ProbeResponse frame and return the * useful information in an ieee80211_scanparams structure. * Status is set to 0 if no problems were found; otherwise * a bitmask of IEEE80211_BPARSE_* items is returned that * describes the problems detected. */ int ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m, struct ieee80211_channel *rxchan, struct ieee80211_scanparams *scan) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211com *ic = ni->ni_ic; struct ieee80211_frame *wh; uint8_t *frm, *efrm; wh = mtod(m, struct ieee80211_frame *); frm = (uint8_t *)&wh[1]; efrm = mtod(m, uint8_t *) + m->m_len; scan->status = 0; /* * beacon/probe response frame format * [8] time stamp * [2] beacon interval * [2] capability information * [tlv] ssid * [tlv] supported rates * [tlv] country information * [tlv] channel switch announcement (CSA) * [tlv] parameter set (FH/DS) * [tlv] erp information * [tlv] extended supported rates * [tlv] WME * [tlv] WPA or RSN * [tlv] HT capabilities * [tlv] HT information * [tlv] Atheros capabilities * [tlv] Mesh ID * [tlv] Mesh Configuration */ IEEE80211_VERIFY_LENGTH(efrm - frm, 12, return (scan->status = IEEE80211_BPARSE_BADIELEN)); memset(scan, 0, sizeof(*scan)); scan->tstamp = frm; frm += 8; scan->bintval = le16toh(*(uint16_t *)frm); frm += 2; scan->capinfo = le16toh(*(uint16_t *)frm); frm += 2; scan->bchan = ieee80211_chan2ieee(ic, rxchan); scan->chan = scan->bchan; scan->ies = frm; scan->ies_len = efrm - frm; while (efrm - frm > 1) { IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return (scan->status = IEEE80211_BPARSE_BADIELEN)); switch (*frm) { case IEEE80211_ELEMID_SSID: scan->ssid = frm; break; case IEEE80211_ELEMID_RATES: scan->rates = frm; break; case IEEE80211_ELEMID_COUNTRY: scan->country = frm; break; case IEEE80211_ELEMID_CSA: scan->csa = frm; break; case IEEE80211_ELEMID_QUIET: scan->quiet = frm; break; case IEEE80211_ELEMID_FHPARMS: if (ic->ic_phytype == IEEE80211_T_FH) { scan->fhdwell = LE_READ_2(&frm[2]); scan->chan = IEEE80211_FH_CHAN(frm[4], frm[5]); scan->fhindex = frm[6]; } break; case IEEE80211_ELEMID_DSPARMS: /* * XXX hack this since depending on phytype * is problematic for multi-mode devices. */ if (ic->ic_phytype != IEEE80211_T_FH) scan->chan = frm[2]; break; case IEEE80211_ELEMID_TIM: /* XXX ATIM? */ scan->tim = frm; scan->timoff = frm - mtod(m, uint8_t *); break; case IEEE80211_ELEMID_IBSSPARMS: case IEEE80211_ELEMID_CFPARMS: case IEEE80211_ELEMID_PWRCNSTR: case IEEE80211_ELEMID_BSSLOAD: case IEEE80211_ELEMID_APCHANREP: /* NB: avoid debugging complaints */ break; case IEEE80211_ELEMID_XRATES: scan->xrates = frm; break; case IEEE80211_ELEMID_ERP: if (frm[1] != 1) { IEEE80211_DISCARD_IE(vap, IEEE80211_MSG_ELEMID, wh, "ERP", "bad len %u", frm[1]); vap->iv_stats.is_rx_elem_toobig++; break; } scan->erp = frm[2] | 0x100; break; case IEEE80211_ELEMID_HTCAP: scan->htcap = frm; break; case IEEE80211_ELEMID_RSN: scan->rsn = frm; break; case IEEE80211_ELEMID_HTINFO: scan->htinfo = frm; break; #ifdef IEEE80211_SUPPORT_MESH case IEEE80211_ELEMID_MESHID: scan->meshid = frm; break; case IEEE80211_ELEMID_MESHCONF: scan->meshconf = frm; break; - case IEEE80211_ELEMID_MESHEXTCAP: - break; #endif + /* Extended capabilities; nothing handles it for now */ + case IEEE80211_ELEMID_EXTCAP: + break; case IEEE80211_ELEMID_VENDOR: if (iswpaoui(frm)) scan->wpa = frm; else if (iswmeparam(frm) || iswmeinfo(frm)) scan->wme = frm; #ifdef IEEE80211_SUPPORT_SUPERG else if (isatherosoui(frm)) scan->ath = frm; #endif #ifdef IEEE80211_SUPPORT_TDMA else if (istdmaoui(frm)) scan->tdma = frm; #endif else if (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) { /* * Accept pre-draft HT ie's if the * standard ones have not been seen. */ if (ishtcapoui(frm)) { if (scan->htcap == NULL) scan->htcap = frm; } else if (ishtinfooui(frm)) { if (scan->htinfo == NULL) scan->htcap = frm; } } break; default: IEEE80211_DISCARD_IE(vap, IEEE80211_MSG_ELEMID, wh, "unhandled", "id %u, len %u", *frm, frm[1]); vap->iv_stats.is_rx_elem_unknown++; break; } frm += frm[1] + 2; } IEEE80211_VERIFY_ELEMENT(scan->rates, IEEE80211_RATE_MAXSIZE, scan->status |= IEEE80211_BPARSE_RATES_INVALID); if (scan->rates != NULL && scan->xrates != NULL) { /* * NB: don't process XRATES if RATES is missing. This * avoids a potential null ptr deref and should be ok * as the return code will already note RATES is missing * (so callers shouldn't otherwise process the frame). */ IEEE80211_VERIFY_ELEMENT(scan->xrates, IEEE80211_RATE_MAXSIZE - scan->rates[1], scan->status |= IEEE80211_BPARSE_XRATES_INVALID); } IEEE80211_VERIFY_ELEMENT(scan->ssid, IEEE80211_NWID_LEN, scan->status |= IEEE80211_BPARSE_SSID_INVALID); if (scan->chan != scan->bchan && ic->ic_phytype != IEEE80211_T_FH) { /* * Frame was received on a channel different from the * one indicated in the DS params element id; * silently discard it. * * NB: this can happen due to signal leakage. * But we should take it for FH phy because * the rssi value should be correct even for * different hop pattern in FH. */ IEEE80211_DISCARD(vap, IEEE80211_MSG_ELEMID | IEEE80211_MSG_INPUT, wh, NULL, "for off-channel %u (bchan=%u)", scan->chan, scan->bchan); vap->iv_stats.is_rx_chanmismatch++; scan->status |= IEEE80211_BPARSE_OFFCHAN; } if (!(IEEE80211_BINTVAL_MIN <= scan->bintval && scan->bintval <= IEEE80211_BINTVAL_MAX)) { IEEE80211_DISCARD(vap, IEEE80211_MSG_ELEMID | IEEE80211_MSG_INPUT, wh, NULL, "bogus beacon interval (%d TU)", (int) scan->bintval); vap->iv_stats.is_rx_badbintval++; scan->status |= IEEE80211_BPARSE_BINTVAL_INVALID; } if (scan->country != NULL) { /* * Validate we have at least enough data to extract * the country code. Not sure if we should return an * error instead of discarding the IE; consider this * being lenient as we don't depend on the data for * correct operation. */ IEEE80211_VERIFY_LENGTH(scan->country[1], 3 * sizeof(uint8_t), scan->country = NULL); } if (scan->csa != NULL) { /* * Validate Channel Switch Announcement; this must * be the correct length or we toss the frame. */ IEEE80211_VERIFY_LENGTH(scan->csa[1], 3 * sizeof(uint8_t), scan->status |= IEEE80211_BPARSE_CSA_INVALID); } /* * Process HT ie's. This is complicated by our * accepting both the standard ie's and the pre-draft * vendor OUI ie's that some vendors still use/require. */ if (scan->htcap != NULL) { IEEE80211_VERIFY_LENGTH(scan->htcap[1], scan->htcap[0] == IEEE80211_ELEMID_VENDOR ? 4 + sizeof(struct ieee80211_ie_htcap)-2 : sizeof(struct ieee80211_ie_htcap)-2, scan->htcap = NULL); } if (scan->htinfo != NULL) { IEEE80211_VERIFY_LENGTH(scan->htinfo[1], scan->htinfo[0] == IEEE80211_ELEMID_VENDOR ? 4 + sizeof(struct ieee80211_ie_htinfo)-2 : sizeof(struct ieee80211_ie_htinfo)-2, scan->htinfo = NULL); } return scan->status; } /* * Parse an Action frame. Return 0 on success, non-zero on failure. */ int ieee80211_parse_action(struct ieee80211_node *ni, struct mbuf *m) { struct ieee80211vap *vap = ni->ni_vap; const struct ieee80211_action *ia; struct ieee80211_frame *wh; uint8_t *frm, *efrm; /* * action frame format: * [1] category * [1] action * [tlv] parameters */ wh = mtod(m, struct ieee80211_frame *); frm = (u_int8_t *)&wh[1]; efrm = mtod(m, u_int8_t *) + m->m_len; IEEE80211_VERIFY_LENGTH(efrm - frm, sizeof(struct ieee80211_action), return EINVAL); ia = (const struct ieee80211_action *) frm; vap->iv_stats.is_rx_action++; IEEE80211_NODE_STAT(ni, rx_action); /* verify frame payloads but defer processing */ switch (ia->ia_category) { case IEEE80211_ACTION_CAT_BA: switch (ia->ia_action) { case IEEE80211_ACTION_BA_ADDBA_REQUEST: IEEE80211_VERIFY_LENGTH(efrm - frm, sizeof(struct ieee80211_action_ba_addbarequest), return EINVAL); break; case IEEE80211_ACTION_BA_ADDBA_RESPONSE: IEEE80211_VERIFY_LENGTH(efrm - frm, sizeof(struct ieee80211_action_ba_addbaresponse), return EINVAL); break; case IEEE80211_ACTION_BA_DELBA: IEEE80211_VERIFY_LENGTH(efrm - frm, sizeof(struct ieee80211_action_ba_delba), return EINVAL); break; } break; case IEEE80211_ACTION_CAT_HT: switch (ia->ia_action) { case IEEE80211_ACTION_HT_TXCHWIDTH: IEEE80211_VERIFY_LENGTH(efrm - frm, sizeof(struct ieee80211_action_ht_txchwidth), return EINVAL); break; case IEEE80211_ACTION_HT_MIMOPWRSAVE: IEEE80211_VERIFY_LENGTH(efrm - frm, sizeof(struct ieee80211_action_ht_mimopowersave), return EINVAL); break; } break; #ifdef IEEE80211_SUPPORT_MESH case IEEE80211_ACTION_CAT_MESH: switch (ia->ia_action) { case IEEE80211_ACTION_MESH_LMETRIC: /* * XXX: verification is true only if we are using * Airtime link metric (default) */ IEEE80211_VERIFY_LENGTH(efrm - frm, sizeof(struct ieee80211_meshlmetric_ie), return EINVAL); break; case IEEE80211_ACTION_MESH_HWMP: /* verify something */ break; case IEEE80211_ACTION_MESH_GANN: IEEE80211_VERIFY_LENGTH(efrm - frm, sizeof(struct ieee80211_meshgann_ie), return EINVAL); break; case IEEE80211_ACTION_MESH_CC: case IEEE80211_ACTION_MESH_MCCA_SREQ: case IEEE80211_ACTION_MESH_MCCA_SREP: case IEEE80211_ACTION_MESH_MCCA_AREQ: case IEEE80211_ACTION_MESH_MCCA_ADVER: case IEEE80211_ACTION_MESH_MCCA_TRDOWN: case IEEE80211_ACTION_MESH_TBTT_REQ: case IEEE80211_ACTION_MESH_TBTT_RES: /* reject these early on, not implemented */ IEEE80211_DISCARD(vap, IEEE80211_MSG_ELEMID | IEEE80211_MSG_INPUT, wh, NULL, "not implemented yet, act=0x%02X", ia->ia_action); return EINVAL; } break; case IEEE80211_ACTION_CAT_SELF_PROT: /* If TA or RA group address discard silently */ if (IEEE80211_IS_MULTICAST(wh->i_addr1) || IEEE80211_IS_MULTICAST(wh->i_addr2)) return EINVAL; /* * XXX: Should we verify complete length now or it is * to varying in sizes? */ switch (ia->ia_action) { case IEEE80211_ACTION_MESHPEERING_CONFIRM: case IEEE80211_ACTION_MESHPEERING_CLOSE: /* is not a peering candidate (yet) */ if (ni == vap->iv_bss) return EINVAL; break; } break; #endif } return 0; } #ifdef IEEE80211_DEBUG /* * Debugging support. */ void ieee80211_ssid_mismatch(struct ieee80211vap *vap, const char *tag, uint8_t mac[IEEE80211_ADDR_LEN], uint8_t *ssid) { printf("[%s] discard %s frame, ssid mismatch: ", ether_sprintf(mac), tag); ieee80211_print_essid(ssid + 2, ssid[1]); printf("\n"); } /* * Return the bssid of a frame. */ static const uint8_t * ieee80211_getbssid(const struct ieee80211vap *vap, const struct ieee80211_frame *wh) { if (vap->iv_opmode == IEEE80211_M_STA) return wh->i_addr2; if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) != IEEE80211_FC1_DIR_NODS) return wh->i_addr1; if ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == IEEE80211_FC0_SUBTYPE_PS_POLL) return wh->i_addr1; return wh->i_addr3; } #include void ieee80211_note(const struct ieee80211vap *vap, const char *fmt, ...) { char buf[128]; /* XXX */ va_list ap; va_start(ap, fmt); vsnprintf(buf, sizeof(buf), fmt, ap); va_end(ap); if_printf(vap->iv_ifp, "%s", buf); /* NB: no \n */ } void ieee80211_note_frame(const struct ieee80211vap *vap, const struct ieee80211_frame *wh, const char *fmt, ...) { char buf[128]; /* XXX */ va_list ap; va_start(ap, fmt); vsnprintf(buf, sizeof(buf), fmt, ap); va_end(ap); if_printf(vap->iv_ifp, "[%s] %s\n", ether_sprintf(ieee80211_getbssid(vap, wh)), buf); } void ieee80211_note_mac(const struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], const char *fmt, ...) { char buf[128]; /* XXX */ va_list ap; va_start(ap, fmt); vsnprintf(buf, sizeof(buf), fmt, ap); va_end(ap); if_printf(vap->iv_ifp, "[%s] %s\n", ether_sprintf(mac), buf); } void ieee80211_discard_frame(const struct ieee80211vap *vap, const struct ieee80211_frame *wh, const char *type, const char *fmt, ...) { va_list ap; if_printf(vap->iv_ifp, "[%s] discard ", ether_sprintf(ieee80211_getbssid(vap, wh))); if (type == NULL) { printf("%s frame, ", ieee80211_mgt_subtype_name[ (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) >> IEEE80211_FC0_SUBTYPE_SHIFT]); } else printf("%s frame, ", type); va_start(ap, fmt); vprintf(fmt, ap); va_end(ap); printf("\n"); } void ieee80211_discard_ie(const struct ieee80211vap *vap, const struct ieee80211_frame *wh, const char *type, const char *fmt, ...) { va_list ap; if_printf(vap->iv_ifp, "[%s] discard ", ether_sprintf(ieee80211_getbssid(vap, wh))); if (type != NULL) printf("%s information element, ", type); else printf("information element, "); va_start(ap, fmt); vprintf(fmt, ap); va_end(ap); printf("\n"); } void ieee80211_discard_mac(const struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], const char *type, const char *fmt, ...) { va_list ap; if_printf(vap->iv_ifp, "[%s] discard ", ether_sprintf(mac)); if (type != NULL) printf("%s frame, ", type); else printf("frame, "); va_start(ap, fmt); vprintf(fmt, ap); va_end(ap); printf("\n"); } #endif /* IEEE80211_DEBUG */