/* $OpenBSD: ieee80211_node.h,v 1.64 2017/01/09 20:18:59 stsp Exp $ */ /* $NetBSD: ieee80211_node.h,v 1.9 2004/04/30 22:57:32 dyoung Exp $ */ /*- * Copyright (c) 2001 Atsushi Onoe * Copyright (c) 2002, 2003 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * 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: src/sys/net80211/ieee80211_node.h,v 1.10 2004/04/05 22:10:26 sam Exp $ */ #ifndef _NET80211_IEEE80211_NODE_H_ #define _NET80211_IEEE80211_NODE_H_ #include #define IEEE80211_PSCAN_WAIT 5 /* passive scan wait */ #define IEEE80211_TRANS_WAIT 5 /* transition wait */ #define IEEE80211_INACT_WAIT 5 /* inactivity timer interval */ #define IEEE80211_INACT_MAX (300/IEEE80211_INACT_WAIT) #define IEEE80211_CACHE_SIZE 100 #define IEEE80211_CACHE_WAIT 3600 struct ieee80211_rateset { u_int8_t rs_nrates; u_int8_t rs_rates[IEEE80211_RATE_MAXSIZE]; }; extern const struct ieee80211_rateset ieee80211_std_rateset_11a; extern const struct ieee80211_rateset ieee80211_std_rateset_11b; extern const struct ieee80211_rateset ieee80211_std_rateset_11g; enum ieee80211_node_state { IEEE80211_STA_CACHE, /* cached node */ IEEE80211_STA_BSS, /* ic->ic_bss, the network we joined */ IEEE80211_STA_AUTH, /* successfully authenticated */ IEEE80211_STA_ASSOC, /* successfully associated */ IEEE80211_STA_COLLECT /* This node remains in the cache while * the driver sends a de-auth message; * afterward it should be freed to make room * for a new node. */ }; #define ieee80211_node_newstate(__ni, __state) \ do { \ (__ni)->ni_state = (__state); \ } while (0) enum ieee80211_node_psstate { IEEE80211_PS_AWAKE, IEEE80211_PS_DOZE }; #define IEEE80211_PS_MAX_QUEUE 50 /* maximum saved packets */ /* Authenticator state machine: 4-Way Handshake (see 8.5.6.1.1) */ enum { RSNA_INITIALIZE, RSNA_AUTHENTICATION, RSNA_AUTHENTICATION_2, RSNA_INITPMK, RSNA_INITPSK, RSNA_PTKSTART, RSNA_PTKCALCNEGOTIATING, RSNA_PTKCALCNEGOTIATING_2, RSNA_PTKINITNEGOTIATING, RSNA_PTKINITDONE, RSNA_DISCONNECT, RSNA_DISCONNECTED }; /* Authenticator state machine: Group Key Handshake (see 8.5.6.1.2) */ enum { RSNA_IDLE, RSNA_REKEYNEGOTIATING, RSNA_REKEYESTABLISHED, RSNA_KEYERROR }; struct ieee80211_rxinfo { u_int32_t rxi_flags; u_int32_t rxi_tstamp; int rxi_rssi; }; #define IEEE80211_RXI_HWDEC 0x00000001 #define IEEE80211_RXI_AMPDU_DONE 0x00000002 /* Block Acknowledgement Record */ struct ieee80211_tx_ba { struct ieee80211_node *ba_ni; /* backpointer for callbacks */ struct timeout ba_to; int ba_timeout_val; int ba_state; #define IEEE80211_BA_INIT 0 #define IEEE80211_BA_REQUESTED 1 #define IEEE80211_BA_AGREED 2 /* ADDBA parameter set field for this BA agreement. */ u_int16_t ba_params; /* These values are IEEE802.11 frame sequence numbers (0x0-0xfff) */ u_int16_t ba_winstart; u_int16_t ba_winend; /* Number of A-MPDU subframes in reorder buffer. */ u_int16_t ba_winsize; #define IEEE80211_BA_MAX_WINSZ 64 /* corresponds to maximum ADDBA BUFSZ */ u_int8_t ba_token; }; struct ieee80211_rx_ba { struct ieee80211_node *ba_ni; /* backpointer for callbacks */ struct { struct mbuf *m; struct ieee80211_rxinfo rxi; } *ba_buf; struct timeout ba_to; int ba_timeout_val; int ba_state; u_int16_t ba_params; u_int16_t ba_winstart; u_int16_t ba_winend; u_int16_t ba_winsize; u_int16_t ba_head; struct timeout ba_gap_to; #define IEEE80211_BA_GAP_TIMEOUT 300 /* msec */ /* Counter for consecutive frames which missed the BA window. */ int ba_winmiss; /* Sequence number of previous frame which missed the BA window. */ uint16_t ba_missedsn; /* Window moves forward after this many frames have missed it. */ #define IEEE80211_BA_MAX_WINMISS 8 uint8_t ba_token; }; /* * Node specific information. Note that drivers are expected * to derive from this structure to add device-specific per-node * state. This is done by overriding the ic_node_* methods in * the ieee80211com structure. */ struct ieee80211_node { RBT_ENTRY(ieee80211_node) ni_node; struct ieee80211com *ni_ic; /* back-pointer */ u_int ni_refcnt; u_int ni_scangen; /* gen# for timeout scan */ /* hardware */ u_int32_t ni_rstamp; /* recv timestamp */ u_int8_t ni_rssi; /* recv ssi */ /* header */ u_int8_t ni_macaddr[IEEE80211_ADDR_LEN]; u_int8_t ni_bssid[IEEE80211_ADDR_LEN]; /* beacon, probe response */ u_int8_t ni_tstamp[8]; /* from last rcv'd beacon */ u_int16_t ni_intval; /* beacon interval */ u_int16_t ni_capinfo; /* capabilities */ u_int8_t ni_esslen; u_int8_t ni_essid[IEEE80211_NWID_LEN]; struct ieee80211_rateset ni_rates; /* negotiated rate set */ u_int8_t *ni_country; /* country information XXX */ struct ieee80211_channel *ni_chan; u_int8_t ni_erp; /* 11g only */ /* DTIM and contention free period (CFP) */ u_int8_t ni_dtimcount; u_int8_t ni_dtimperiod; #ifdef notyet u_int8_t ni_cfpperiod; /* # of DTIMs between CFPs */ u_int16_t ni_cfpduremain; /* remaining cfp duration */ u_int16_t ni_cfpmaxduration;/* max CFP duration in TU */ u_int16_t ni_nextdtim; /* time to next DTIM */ u_int16_t ni_timoffset; #endif /* power saving mode */ u_int8_t ni_pwrsave; struct mbuf_queue ni_savedq; /* packets queued for pspoll */ /* RSN */ struct timeout ni_eapol_to; u_int ni_rsn_state; u_int ni_rsn_gstate; u_int ni_rsn_retries; u_int ni_rsnprotos; u_int ni_rsnakms; u_int ni_rsnciphers; enum ieee80211_cipher ni_rsngroupcipher; enum ieee80211_cipher ni_rsngroupmgmtcipher; u_int16_t ni_rsncaps; enum ieee80211_cipher ni_rsncipher; u_int8_t ni_nonce[EAPOL_KEY_NONCE_LEN]; u_int8_t ni_pmk[IEEE80211_PMK_LEN]; u_int8_t ni_pmkid[IEEE80211_PMKID_LEN]; u_int64_t ni_replaycnt; u_int8_t ni_replaycnt_ok; u_int64_t ni_reqreplaycnt; u_int8_t ni_reqreplaycnt_ok; u_int8_t *ni_rsnie; struct ieee80211_key ni_pairwise_key; struct ieee80211_ptk ni_ptk; u_int8_t ni_key_count; int ni_port_valid; /* SA Query */ u_int16_t ni_sa_query_trid; struct timeout ni_sa_query_to; int ni_sa_query_count; /* HT capabilities */ uint16_t ni_htcaps; uint8_t ni_ampdu_param; uint8_t ni_rxmcs[howmany(80,NBBY)]; uint16_t ni_max_rxrate; /* in Mb/s, 0 <= rate <= 1023 */ uint8_t ni_tx_mcs_set; uint16_t ni_htxcaps; uint32_t ni_txbfcaps; uint8_t ni_aselcaps; /* HT operation */ uint8_t ni_primary_chan; /* XXX corresponds to ni_chan */ uint8_t ni_htop0; uint16_t ni_htop1; uint16_t ni_htop2; uint8_t ni_basic_mcs[howmany(128,NBBY)]; /* Block Ack records */ struct ieee80211_tx_ba ni_tx_ba[IEEE80211_NUM_TID]; struct ieee80211_rx_ba ni_rx_ba[IEEE80211_NUM_TID]; int ni_txmcs; /* current MCS used for TX */ /* others */ u_int16_t ni_associd; /* assoc response */ u_int16_t ni_txseq; /* seq to be transmitted */ u_int16_t ni_rxseq; /* seq previous received */ u_int16_t ni_qos_txseqs[IEEE80211_NUM_TID]; u_int16_t ni_qos_rxseqs[IEEE80211_NUM_TID]; int ni_fails; /* failure count to associate */ int ni_inact; /* inactivity mark count */ int ni_txrate; /* index to ni_rates[] */ int ni_state; u_int16_t ni_flags; /* special-purpose state */ #define IEEE80211_NODE_ERP 0x0001 #define IEEE80211_NODE_QOS 0x0002 #define IEEE80211_NODE_REKEY 0x0004 /* GTK rekeying in progress */ #define IEEE80211_NODE_RXPROT 0x0008 /* RX protection ON */ #define IEEE80211_NODE_TXPROT 0x0010 /* TX protection ON */ #define IEEE80211_NODE_TXRXPROT \ (IEEE80211_NODE_TXPROT | IEEE80211_NODE_RXPROT) #define IEEE80211_NODE_RXMGMTPROT 0x0020 /* RX MMPDU protection ON */ #define IEEE80211_NODE_TXMGMTPROT 0x0040 /* TX MMPDU protection ON */ #define IEEE80211_NODE_MFP 0x0080 /* MFP negotiated */ #define IEEE80211_NODE_PMK 0x0100 /* ni_pmk set */ #define IEEE80211_NODE_PMKID 0x0200 /* ni_pmkid set */ #define IEEE80211_NODE_HT 0x0400 /* HT negotiated */ #define IEEE80211_NODE_SA_QUERY 0x0800 /* SA Query in progress */ #define IEEE80211_NODE_SA_QUERY_FAILED 0x1000 /* last SA Query failed */ }; RBT_HEAD(ieee80211_tree, ieee80211_node); static __inline void ieee80211_node_incref(struct ieee80211_node *ni) { int s; s = splnet(); ni->ni_refcnt++; splx(s); } static __inline u_int ieee80211_node_decref(struct ieee80211_node *ni) { u_int refcnt; int s; s = splnet(); refcnt = --ni->ni_refcnt; splx(s); return refcnt; } static __inline struct ieee80211_node * ieee80211_ref_node(struct ieee80211_node *ni) { ieee80211_node_incref(ni); return ni; } static __inline void ieee80211_unref_node(struct ieee80211_node **ni) { ieee80211_node_decref(*ni); *ni = NULL; /* guard against use */ } struct ieee80211com; #ifdef MALLOC_DECLARE MALLOC_DECLARE(M_80211_NODE); #endif extern void ieee80211_node_attach(struct ifnet *); extern void ieee80211_node_lateattach(struct ifnet *); extern void ieee80211_node_detach(struct ifnet *); extern void ieee80211_begin_scan(struct ifnet *); extern void ieee80211_next_scan(struct ifnet *); extern void ieee80211_end_scan(struct ifnet *); extern void ieee80211_reset_scan(struct ifnet *); extern struct ieee80211_node *ieee80211_alloc_node(struct ieee80211com *, const u_int8_t *); extern struct ieee80211_node *ieee80211_dup_bss(struct ieee80211com *, const u_int8_t *); extern struct ieee80211_node *ieee80211_find_node(struct ieee80211com *, const u_int8_t *); extern struct ieee80211_node *ieee80211_find_rxnode(struct ieee80211com *, const struct ieee80211_frame *); extern struct ieee80211_node *ieee80211_find_txnode(struct ieee80211com *, const u_int8_t *); extern struct ieee80211_node * ieee80211_find_node_for_beacon(struct ieee80211com *, const u_int8_t *, const struct ieee80211_channel *, const char *, u_int8_t); extern void ieee80211_release_node(struct ieee80211com *, struct ieee80211_node *); extern void ieee80211_free_allnodes(struct ieee80211com *); typedef void ieee80211_iter_func(void *, struct ieee80211_node *); extern void ieee80211_iterate_nodes(struct ieee80211com *ic, ieee80211_iter_func *, void *); extern void ieee80211_clean_cached(struct ieee80211com *ic); extern void ieee80211_clean_nodes(struct ieee80211com *, int); void ieee80211_setup_htcaps(struct ieee80211_node *, const uint8_t *, uint8_t); void ieee80211_clear_htcaps(struct ieee80211_node *); int ieee80211_setup_htop(struct ieee80211_node *, const uint8_t *, uint8_t); extern int ieee80211_setup_rates(struct ieee80211com *, struct ieee80211_node *, const u_int8_t *, const u_int8_t *, int); extern int ieee80211_iserp_sta(const struct ieee80211_node *); extern void ieee80211_node_join(struct ieee80211com *, struct ieee80211_node *, int); extern void ieee80211_node_leave(struct ieee80211com *, struct ieee80211_node *); extern int ieee80211_match_bss(struct ieee80211com *, struct ieee80211_node *); extern void ieee80211_create_ibss(struct ieee80211com* , struct ieee80211_channel *); extern void ieee80211_notify_dtim(struct ieee80211com *); extern void ieee80211_set_tim(struct ieee80211com *, int, int); extern int ieee80211_node_cmp(const struct ieee80211_node *, const struct ieee80211_node *); RBT_PROTOTYPE(ieee80211_tree, ieee80211_node, ni_node, ieee80211_node_cmp); #endif /* _NET80211_IEEE80211_NODE_H_ */