diff options
Diffstat (limited to 'sys/net80211/ieee80211_node.h')
| -rw-r--r-- | sys/net80211/ieee80211_node.h | 255 |
1 files changed, 191 insertions, 64 deletions
diff --git a/sys/net80211/ieee80211_node.h b/sys/net80211/ieee80211_node.h index dfb8d4e..abd8cd2 100644 --- a/sys/net80211/ieee80211_node.h +++ b/sys/net80211/ieee80211_node.h @@ -34,24 +34,52 @@ #ifndef _NET80211_IEEE80211_NODE_H_ #define _NET80211_IEEE80211_NODE_H_ -#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) +#include <net80211/ieee80211_ioctl.h> /* for ieee80211_nodestats */ + +/* + * Each ieee80211com instance has a single timer that fires once a + * second. This is used to initiate various work depending on the + * state of the instance: scanning (passive or active), ``transition'' + * (waiting for a response to a management frame when operating + * as a station), and node inactivity processing (when operating + * as an AP). For inactivity processing each node has a timeout + * set in it's ni_inact field that is decremented on each timeout + * and the node is reclaimed when the counter goes to zero. We + * use different inactivity timeout values depending on whether + * the node is associated and authorized (either by 802.1x or + * open/shared key authentication) or associated but yet to be + * authorized. The latter timeout is shorter to more aggressively + * reclaim nodes that leave part way through the 802.1x exchange. + */ +#define IEEE80211_INACT_WAIT 15 /* inactivity interval (secs) */ +#define IEEE80211_INACT_INIT (30/IEEE80211_INACT_WAIT) /* initial */ +#define IEEE80211_INACT_AUTH (180/IEEE80211_INACT_WAIT) /* associated but not authorized */ +#define IEEE80211_INACT_RUN (300/IEEE80211_INACT_WAIT) /* authorized */ +#define IEEE80211_INACT_PROBE (30/IEEE80211_INACT_WAIT) /* probe */ +#define IEEE80211_INACT_SCAN (300/IEEE80211_INACT_WAIT) /* scanned */ + +#define IEEE80211_TRANS_WAIT 5 /* mgt frame tx timer (secs) */ #define IEEE80211_NODE_HASHSIZE 32 /* simple hash is enough for variation of macaddr */ #define IEEE80211_NODE_HASH(addr) \ - (((u_int8_t *)(addr))[IEEE80211_ADDR_LEN - 1] % IEEE80211_NODE_HASHSIZE) - -#define IEEE80211_RATE_SIZE 8 /* 802.11 standard */ -#define IEEE80211_RATE_MAXSIZE 15 /* max rates we'll handle */ + (((const u_int8_t *)(addr))[IEEE80211_ADDR_LEN - 1] % \ + IEEE80211_NODE_HASHSIZE) -struct ieee80211_rateset { - u_int8_t rs_nrates; - u_int8_t rs_rates[IEEE80211_RATE_MAXSIZE]; +struct ieee80211_rsnparms { + u_int8_t rsn_mcastcipher; /* mcast/group cipher */ + u_int8_t rsn_mcastkeylen; /* mcast key length */ + u_int8_t rsn_ucastcipherset; /* unicast cipher set */ + u_int8_t rsn_ucastcipher; /* selected unicast cipher */ + u_int8_t rsn_ucastkeylen; /* unicast key length */ + u_int8_t rsn_keymgmtset; /* key mangement algorithms */ + u_int8_t rsn_keymgmt; /* selected key mgmt algo */ + u_int16_t rsn_caps; /* capabilities */ }; +struct ieee80211_node_table; +struct ieee80211com; + /* * Node specific information. Note that drivers are expected * to derive from this structure to add device-specific per-node @@ -59,10 +87,31 @@ struct ieee80211_rateset { * the ieee80211com structure. */ struct ieee80211_node { + struct ieee80211com *ni_ic; + struct ieee80211_node_table *ni_table; TAILQ_ENTRY(ieee80211_node) ni_list; LIST_ENTRY(ieee80211_node) ni_hash; u_int ni_refcnt; u_int ni_scangen; /* gen# for timeout scan */ + u_int8_t ni_authmode; /* authentication algorithm */ + u_int16_t ni_flags; /* special-purpose state */ +#define IEEE80211_NODE_AUTH 0x0001 /* authorized for data */ +#define IEEE80211_NODE_QOS 0x0002 /* QoS enabled */ +#define IEEE80211_NODE_ERP 0x0004 /* ERP enabled */ +/* NB: this must have the same value as IEEE80211_FC1_PWR_MGT */ +#define IEEE80211_NODE_PWR_MGT 0x0010 /* power save mode enabled */ + u_int16_t ni_associd; /* assoc response */ + u_int16_t ni_txpower; /* current transmit power */ + u_int16_t ni_vlan; /* vlan tag */ + u_int32_t *ni_challenge; /* shared-key challenge */ + u_int8_t *ni_wpa_ie; /* captured WPA/RSN ie */ + u_int8_t *ni_wme_ie; /* captured WME ie */ + u_int16_t ni_txseqs[17]; /* tx seq per-tid */ + u_int16_t ni_rxseqs[17]; /* rx seq previous per-tid*/ + u_int32_t ni_rxfragstamp; /* time stamp of last rx frag */ + struct mbuf *ni_rxfrag[3]; /* rx frag reassembly */ + struct ieee80211_rsnparms ni_rsn; /* RSN/WPA parameters */ + struct ieee80211_key ni_ucastkey; /* unicast key */ /* hardware */ u_int32_t ni_rstamp; /* recv timestamp */ @@ -73,90 +122,168 @@ struct ieee80211_node { u_int8_t ni_bssid[IEEE80211_ADDR_LEN]; /* beacon, probe response */ - u_int8_t ni_tstamp[8]; /* from last rcv'd beacon */ + union { + u_int8_t data[8]; + u_int64_t tsf; + } ni_tstamp; /* 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_int16_t ni_fhdwell; /* FH only */ u_int8_t ni_fhindex; /* FH only */ - u_int8_t ni_erp; /* 11g only */ - -#ifdef notyet - /* DTIM and contention free period (CFP) */ - u_int8_t ni_dtimperiod; - 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 + u_int8_t ni_erp; /* ERP from beacon/probe resp */ + u_int16_t ni_timoff; /* byte offset to TIM ie */ /* 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 */ int ni_fails; /* failure count to associate */ - int ni_inact; /* inactivity mark count */ + short ni_inact; /* inactivity mark count */ + short ni_inact_reload;/* inactivity reload value */ int ni_txrate; /* index to ni_rates[] */ + struct ifqueue ni_savedq; /* ps-poll queue */ + struct ieee80211_nodestats ni_stats; /* per-node statistics */ }; +MALLOC_DECLARE(M_80211_NODE); + +#define IEEE80211_NODE_AID(ni) IEEE80211_AID(ni->ni_associd) + +#define IEEE80211_NODE_STAT(ni,stat) (ni->ni_stats.ns_##stat++) +#define IEEE80211_NODE_STAT_ADD(ni,stat,v) (ni->ni_stats.ns_##stat += v) +#define IEEE80211_NODE_STAT_SET(ni,stat,v) (ni->ni_stats.ns_##stat = v) static __inline struct ieee80211_node * ieee80211_ref_node(struct ieee80211_node *ni) { - atomic_add_int(&ni->ni_refcnt, 1); + ieee80211_node_incref(ni); return ni; } static __inline void ieee80211_unref_node(struct ieee80211_node **ni) { - atomic_subtract_int(&(*ni)->ni_refcnt, 1); + ieee80211_node_decref(*ni); *ni = NULL; /* guard against use */ } -#define IEEE80211_NODE_LOCK_INIT(_ic, _name) \ - mtx_init(&(_ic)->ic_nodelock, _name, "802.11 node table", MTX_DEF) -#define IEEE80211_NODE_LOCK_DESTROY(_ic) mtx_destroy(&(_ic)->ic_nodelock) -#define IEEE80211_NODE_LOCK(_ic) mtx_lock(&(_ic)->ic_nodelock) -#define IEEE80211_NODE_UNLOCK(_ic) mtx_unlock(&(_ic)->ic_nodelock) -#define IEEE80211_NODE_LOCK_ASSERT(_ic) \ - mtx_assert(&(_ic)->ic_nodelock, MA_OWNED) - struct ieee80211com; -#ifdef MALLOC_DECLARE -MALLOC_DECLARE(M_80211_NODE); -#endif +extern void ieee80211_node_attach(struct ieee80211com *); +extern void ieee80211_node_lateattach(struct ieee80211com *); +extern void ieee80211_node_detach(struct ieee80211com *); + +static __inline int +ieee80211_node_is_authorized(const struct ieee80211_node *ni) +{ + return (ni->ni_flags & IEEE80211_NODE_AUTH); +} -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 struct ieee80211_node *ieee80211_alloc_node(struct ieee80211com *, - u_int8_t *); -extern struct ieee80211_node *ieee80211_dup_bss(struct ieee80211com *, - u_int8_t *); -extern struct ieee80211_node *ieee80211_find_node(struct ieee80211com *, - u_int8_t *); -extern struct ieee80211_node *ieee80211_find_txnode(struct ieee80211com *, - u_int8_t *); -extern struct ieee80211_node * ieee80211_lookup_node(struct ieee80211com *, - u_int8_t *macaddr, struct ieee80211_channel *); -extern void ieee80211_free_node(struct ieee80211com *, +extern void ieee80211_node_authorize(struct ieee80211com *, struct ieee80211_node *); -extern void ieee80211_free_allnodes(struct ieee80211com *); +extern void ieee80211_node_unauthorize(struct ieee80211com *, + struct ieee80211_node *); + +extern void ieee80211_begin_scan(struct ieee80211com *, int); +extern int ieee80211_next_scan(struct ieee80211com *); +extern void ieee80211_create_ibss(struct ieee80211com*, + struct ieee80211_channel *); +extern void ieee80211_reset_bss(struct ieee80211com *); +extern void ieee80211_end_scan(struct ieee80211com *); +extern int ieee80211_ibss_merge(struct ieee80211com *, + struct ieee80211_node *); +extern int ieee80211_sta_join(struct ieee80211com *, + struct ieee80211_node *); +extern void ieee80211_sta_leave(struct ieee80211com *, + struct ieee80211_node *); + +/* + * Table of ieee80211_node instances. Each ieee80211com + * has at least one for holding the scan candidates. + * When operating as an access point or in ibss mode there + * is a second table for associated stations or neighbors. + */ +struct ieee80211_node_table { + struct ieee80211com *nt_ic; /* back reference */ + ieee80211_node_lock_t nt_nodelock; /* on node table */ + TAILQ_HEAD(, ieee80211_node) nt_node; /* information of all nodes */ + LIST_HEAD(, ieee80211_node) nt_hash[IEEE80211_NODE_HASHSIZE]; + const char *nt_name; /* for debugging */ + ieee80211_scan_lock_t nt_scanlock; /* on nt_scangen */ + u_int nt_scangen; /* gen# for timeout scan */ + int nt_inact_timer; /* inactivity timer */ + int nt_inact_init; /* initial node inact setting */ + + void (*nt_timeout)(struct ieee80211_node_table *); +}; +extern void ieee80211_node_table_reset(struct ieee80211_node_table *); +extern void ieee80211_node_table_free(struct ieee80211_node_table *); + +extern struct ieee80211_node *ieee80211_alloc_node( + struct ieee80211_node_table *, const u_int8_t *); +extern struct ieee80211_node *ieee80211_dup_bss(struct ieee80211_node_table *, + const u_int8_t *); +#ifdef IEEE80211_DEBUG_REFCNT +extern void ieee80211_free_node_debug(struct ieee80211_node *, + const char *func, int line); +extern struct ieee80211_node *ieee80211_find_node_debug( + struct ieee80211_node_table *, const u_int8_t *, + const char *func, int line); +extern struct ieee80211_node * ieee80211_find_rxnode_debug( + struct ieee80211com *, const struct ieee80211_frame_min *, + const char *func, int line); +extern struct ieee80211_node *ieee80211_find_txnode_debug( + struct ieee80211com *, const u_int8_t *, + const char *func, int line); +extern struct ieee80211_node *ieee80211_find_node_with_channel_debug( + struct ieee80211_node_table *, const u_int8_t *macaddr, + struct ieee80211_channel *, const char *func, int line); +extern struct ieee80211_node *ieee80211_find_node_with_ssid_debug( + struct ieee80211_node_table *, const u_int8_t *macaddr, + u_int ssidlen, const u_int8_t *ssid, + const char *func, int line); +#define ieee80211_free_node(ni) \ + ieee80211_free_node_debug(ni, __func__, __LINE__) +#define ieee80211_find_node(nt, mac) \ + ieee80211_find_node_debug(nt, mac, __func__, __LINE__) +#define ieee80211_find_rxnode(nt, wh) \ + ieee80211_find_rxnode_debug(nt, wh, __func__, __LINE__) +#define ieee80211_find_txnode(nt, mac) \ + ieee80211_find_txnode_debug(nt, mac, __func__, __LINE__) +#define ieee80211_find_node_with_channel(nt, mac, c) \ + ieee80211_find_node_with_channel_debug(nt, mac, c, __func__, __LINE__) +#define ieee80211_find_node_with_ssid(nt, mac, sl, ss) \ + ieee80211_find_node_with_ssid_debug(nt, mac, sl, ss, __func__, __LINE__) +#else +extern void ieee80211_free_node(struct ieee80211_node *); +extern struct ieee80211_node *ieee80211_find_node( + struct ieee80211_node_table *, const u_int8_t *); +extern struct ieee80211_node * ieee80211_find_rxnode( + struct ieee80211com *, const struct ieee80211_frame_min *); +extern struct ieee80211_node *ieee80211_find_txnode( + struct ieee80211com *, const u_int8_t *); +extern struct ieee80211_node *ieee80211_find_node_with_channel( + struct ieee80211_node_table *, const u_int8_t *macaddr, + struct ieee80211_channel *); +extern struct ieee80211_node *ieee80211_find_node_with_ssid( + struct ieee80211_node_table *, const u_int8_t *macaddr, + u_int ssidlen, const u_int8_t *ssid); +#endif + typedef void ieee80211_iter_func(void *, struct ieee80211_node *); -extern void ieee80211_iterate_nodes(struct ieee80211com *ic, +extern void ieee80211_iterate_nodes(struct ieee80211_node_table *, ieee80211_iter_func *, void *); -extern void ieee80211_timeout_nodes(struct ieee80211com *); -extern void ieee80211_create_ibss(struct ieee80211com* , - struct ieee80211_channel *); +extern void ieee80211_dump_node(struct ieee80211_node_table *, + struct ieee80211_node *); +extern void ieee80211_dump_nodes(struct ieee80211_node_table *); + +extern struct ieee80211_node *ieee80211_fakeup_adhoc_node( + struct ieee80211_node_table *nt, + const u_int8_t macaddr[]); +extern void ieee80211_node_join(struct ieee80211com *, + struct ieee80211_node *, int); +extern void ieee80211_node_leave(struct ieee80211com *, + struct ieee80211_node *); +extern u_int8_t ieee80211_getrssi(struct ieee80211com *ic); #endif /* _NET80211_IEEE80211_NODE_H_ */ |
