Commit Graph

242 Commits

Author SHA1 Message Date
Sam Leffler
e99662a623 s/w beacon miss facility; need to add knobs to fiddle with the settings
MFC after:	2 weeks
2006-01-23 21:02:49 +00:00
Sam Leffler
233e00212e switch beacon miss threshold from a time to the number of beacon
frames; the time value was implicitly based on the beacon interval
but never being updated so wrong when the negotiated beacon interval
was not 100 TU
2006-01-23 20:57:30 +00:00
Sam Leffler
336ec6a116 bounds check each ie's length when parsing
Obtained from:	madwifi
MFC after:	1 week
2006-01-23 19:31:00 +00:00
Sam Leffler
239cc3b6ce Rev ioctl to get scan results:
o lock the list walk
o malloc a results buffer instead of copying out one result at a time
  using an on-stack buffer
o fix definition of ieee80211req_scan_result so size of variable-length
  information elements is large enough to hold all possible ie's
  (still only return wpa+wme, at some point may return all)
o make rssi+noise data signed; they should've been so all along
o add a bit more padding for future additions while we're here
o define a new ioctl for new api and add compat code for old ioctl
  under COMPAT_FREEBSD6 (temporarily enabled local to the file)

Reviewed by:	Scott Long
MFC after:	2 weeks
2006-01-18 22:17:50 +00:00
Sam Leffler
a1a5050276 bump the scan generation number before iterating so we're guaranteed
to have a value that's not been used before; this fixes the problem
where the first traversal of the scan list did nothing because the
entries were initialized with the current generation number (a
separate issue)

MFC after:	1 week
2006-01-18 19:56:17 +00:00
Colin Percival
9238d0aff6 Correct a buffer overflow when scanning for 802.11 wireless networks.
Security:	FreeBSD-SA-06:05.80211
2006-01-18 09:03:15 +00:00
Sam Leffler
2204bcfd7c add flag to tag frames w/ a known bad FCS
Obtained from:	netbsd
MFC after:	1 week
2006-01-09 17:04:56 +00:00
Sam Leffler
59a440350c enable "aggressive mode" only when operating in ap or station mode; in
particular this fixes use of wme in adhoc demo mode, it wasn't possible
to set the txop limit because the aggressive mode logic would override

Reviewed by:	apatti
MFC after:	2 weeks
2006-01-02 17:16:27 +00:00
Sam Leffler
0912bac9b3 update erp information element in the beacon frame to reflect
changes in the bss

Reviewed by:	avatar
Obtained from:	atheros
MFC after:	2 weeks
2006-01-02 16:57:20 +00:00
Sam Leffler
399178c917 correct checking for turbo channels: rev 1.24 fixed static turbo channels
but broke handling of the turboG channel; since we aren't ready to revamp
the channel list just check for turboA channels for now so channel 6 is
considered in auto mode

Noticed by:	gibbs
2005-12-30 00:40:36 +00:00
Sam Leffler
9a9162def2 correct (reversed) ms<->tu macros
Reviewed by:	apatti, kcyu
2005-12-29 19:03:45 +00:00
Gleb Smirnoff
d147662cd3 - Fix VLAN_INPUT_TAG() macro, so that it doesn't touch mtag in
case if memory allocation failed.
- Remove fourth argument from VLAN_INPUT_TAG(), that was used
  incorrectly in almost all drivers. Indicate failure with
  mbuf value of NULL.

In collaboration with:	yongari, ru, sam
2005-12-18 18:24:27 +00:00
Sam Leffler
c27e4e31fe make packet bursting configurable (default to on if device is capable) 2005-12-14 19:32:53 +00:00
Sam Leffler
8e292e8ecd When creating neighbor entries for an ahdemo bss apply the local
settings.  In particular this allows us to use QoS frames in a
bss and in turn enables disabling ack's.
2005-12-14 01:18:36 +00:00
Sam Leffler
50d8b493e4 when creating an ahdemo bss use any requested bssid; otherwise use zero
Obtained from:	madwifi
2005-12-14 01:16:22 +00:00
Sam Leffler
259bb4d3b9 allow setting the bssid in any mode
Obtained from:	netbsd
2005-12-14 01:14:22 +00:00
Sam Leffler
d16441fde1 disallow module unload when there are dynamic references
MFC after:	1 week
2005-12-12 19:07:48 +00:00
Sam Leffler
1fd2349de8 propagate current bss state on sta join so, in particular, authmode
is set properly in the new bss node

MFC after:	2 weeks
2005-12-12 18:44:27 +00:00
Sam Leffler
1b49e12042 Bandaid ieee80211_set_chan to handle a channel parameter of "any";
this can happen under certain conditions when scanning.  This logic
will eventually go away with the new scanning code.

While here de-inline the routine.

MFC after:	1 week
2005-12-12 18:42:20 +00:00
Sam Leffler
6cfac1074c o correct auto mode logic for avoiding turbo channels
o correct assumption that a static turbo channel is also
  usable in 11a; the opposite is true

MFC after:	1 week
2005-12-12 18:38:20 +00:00
Sam Leffler
e701e041f2 Add ieee80211_beacon_miss for processing sta mode beacon miss events
in the 802.11 layer: we send a directed probe request frame to the
current ap bmiss_max times (w/o answer) before scanning for a new ap.

MFC after:	2 weeks
2005-12-12 18:04:44 +00:00
Sam Leffler
047f1635dd add some useful definitions that'll be used soon 2005-12-12 17:57:00 +00:00
Sam Leffler
64353cb0ef add fixed rate for sending multicast frames
Obtained from:	atheros
MFC after:	1 week
2005-12-12 17:54:39 +00:00
Sam Leffler
c25442860a change malloc when setting an optional ie to use M_NOWAIT
MFC after:	3 days
2005-12-12 17:40:49 +00:00
Sam Leffler
e55e5e4276 correct parameter check when retrieving the current channel list
MFC after:	3 days
2005-12-12 17:38:53 +00:00
Sam Leffler
a196b35f08 correct handling of dtim for periods > 1
Obtained from:	madwifi
2005-12-05 22:14:13 +00:00
Sam Leffler
be425a0f40 Adhoc mode fixups:
o plug memory leak in adhoc mode: on rx the sender may be the
  current master so simply checking against ic_bss is not enough
  to identify if the packet comes from an unknown sender; must
  also check the mac address
o split neighbor node creation into two routines and fillin state
  of nodes faked up on xmit when a beacon or probe response frame
  is later received; this ensures important state like the rate set
  and advertised capabilities are correct

Obtained from:	netbsd
MFC after:	1 week
2005-12-04 04:50:27 +00:00
Sam Leffler
f219c9d3d3 fix dynamic changes in short slottime for 11g sta mode: set the
slot time based on the rcvd capabilities, not the existing ones

Obtained from:	atheros
MFC after:	1 week
2005-11-30 19:54:41 +00:00
Sam Leffler
6f322b78de Update ieee80211_mhz2ieee to understand public safety bands and spectrum
that can potentially be mapped to negative ieee #'s.

NB: before operation on the latter can be supported we need to cleanup
    various code that assumes ieee channel #'s are >= 0
2005-11-15 05:56:32 +00:00
Ruslan Ermilov
4a0d6638b3 - Store pointer to the link-level address right in "struct ifnet"
rather than in ifindex_table[]; all (except one) accesses are
  through ifp anyway.  IF_LLADDR() works faster, and all (except
  one) ifaddr_byindex() users were converted to use ifp->if_addr.

- Stop storing a (pointer to) Ethernet address in "struct arpcom",
  and drop the IFP2ENADDR() macro; all users have been converted
  to use IF_LLADDR() instead.
2005-11-11 16:04:59 +00:00
Andre Oppermann
34333b16cd Retire MT_HEADER mbuf type and change its users to use MT_DATA.
Having an additional MT_HEADER mbuf type is superfluous and redundant
as nothing depends on it.  It only adds a layer of confusion.  The
distinction between header mbuf's and data mbuf's is solely done
through the m->m_flags M_PKTHDR flag.

Non-native code is not changed in this commit.  For compatibility
MT_HEADER is mapped to MT_DATA.

Sponsored by:	TCP/IP Optimization Fundraise 2005
2005-11-02 13:46:32 +00:00
Tai-hwa Liang
8157976a26 Properly set ic_curchan before calling back to device driver to do channel
switching(ifconfig devX channel Y).  This fix should make channel changing
works again in monitor mode.

Submitted by:	sam
X-MFC-With:	other ic_curchan changes
2005-08-30 14:27:47 +00:00
Sam Leffler
5ff8092143 revert 1.64: we cannot use the channel characteristics to decide when to
do 11g erp sta accounting because b/g channels show up as false positives
when operating in 11b.

Noticed by:	Michal Mertl
2005-08-13 17:50:21 +00:00
Sam Leffler
188757f54c Extend acl support to pass ioctl requests through and use this to
add support for getting the current policy setting and collecting
the list of mac addresses in the acl table.

Submitted by:	Michal Mertl (original version)
MFC after:	2 weeks
2005-08-13 17:31:48 +00:00
Sam Leffler
efefac4077 Don't use ic_curmode to decide when to do 11g station accounting,
use the station channel properties.  Fixes assert failure/bogus
operation when an ap is operating in 11a and has associated stations
then switches to 11g.

Noticed by:	Michal Mertl
Reviewed by:	avatar
MFC after:	2 weeks
2005-08-10 17:42:13 +00:00
Sam Leffler
b5c9941514 Clarify/fix handling of the current channel:
o add ic_curchan and use it uniformly for specifying the current
  channel instead of overloading ic->ic_bss->ni_chan (or in some
  drivers ic_ibss_chan)
o add ieee80211_scanparams structure to encapsulate scanning-related
  state captured for rx frames
o move rx beacon+probe response frame handling into separate routines
o change beacon+probe response handling to treat the scan table
  more like a scan cache--look for an existing entry before adding
  a new one; this combined with ic_curchan use corrects handling of
  stations that were previously found at a different channel
o move adhoc neighbor discovery by beacon+probe response frames to
  a new ieee80211_add_neighbor routine

Reviewed by:	avatar
Tested by:	avatar, Michal Mertl
MFC after:	2 weeks
2005-08-10 16:22:30 +00:00
Robert Watson
13f4c340ae Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
ifnet.if_drv_flags.  Device drivers are now responsible for
synchronizing access to these flags, as they are in if_drv_flags.  This
helps prevent races between the network stack and device driver in
maintaining the interface flags field.

Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
some less so.

Reviewed by:	pjd, bz
MFC after:	7 days
2005-08-09 10:20:02 +00:00
Sam Leffler
c1225b52f6 Split crypto tx+rx key indices and add a key index -> node mapping table:
Crypto changes:
o change driver/net80211 key_alloc api to return tx+rx key indices; a
  driver can leave the rx key index set to IEEE80211_KEYIX_NONE or set
  it to be the same as the tx key index (the former disables use of
  the key index in building the keyix->node mapping table and is the
  default setup for naive drivers by null_key_alloc)
o add cs_max_keyid to crypto state to specify the max h/w key index a
  driver will return; this is used to allocate the key index mapping
  table and to bounds check table loookups
o while here introduce ieee80211_keyix (finally) for the type of a h/w
  key index
o change crypto notifiers for rx failures to pass the rx key index up
  as appropriate (michael failure, replay, etc.)

Node table changes:
o optionally allocate a h/w key index to node mapping table for the
  station table using the max key index setting supplied by drivers
  (note the scan table does not get a map)
o defer node table allocation to lateattach so the driver has a chance
  to set the max key id to size the key index map
o while here also defer the aid bitmap allocation
o add new ieee80211_find_rxnode_withkey api to find a sta/node entry
  on frame receive with an optional h/w key index to use in checking
  mapping table; also updates the map if it does a hash lookup and the
  found node has a rx key index set in the unicast key; note this work
  is separated from the old ieee80211_find_rxnode call so drivers do
  not need to be aware of the new mechanism
o move some node table manipulation under the node table lock to close
  a race on node delete
o add ieee80211_node_delucastkey to do the dirty work of deleting
  unicast key state for a node (deletes any key and handles key map
  references)

Ath driver:
o nuke private sc_keyixmap mechansim in favor of net80211 support
o update key alloc api

These changes close several race conditions for the ath driver operating
in ap mode.  Other drivers should see no change.  Station mode operation
for ath no longer uses the key index map but performance tests show no
noticeable change and this will be fixed when the scan table is eliminated
with the new scanning support.

Tested by:	Michal Mertl, avatar, others
Reviewed by:	avatar, others
MFC after:	2 weeks
2005-08-08 18:46:36 +00:00
Sam Leffler
2cab1d3dc4 use ieee80211_iterate_nodes to retrieve station data; the previous
code walked the list w/o locking

MFC after:	1 week
2005-08-08 05:49:29 +00:00
Sam Leffler
d365f9c760 Cleanup beacon/listen interval handling:
o separate configured beacon interval from listen interval; this
  avoids potential use of one value for the other (e.g. setting
  powersavesleep to 0 clobbers the beacon interval used in hostap
  or ibss mode)
o bounds check the beacon interval received in probe response and
  beacon frames and drop frames with bogus settings; not clear
  if we should instead clamp the value as any alteration would
  result in mismatched sta+ap configuration and probably be more
  confusing (don't want to log to the console but perhaps ok with
  rate limiting)
o while here up max beacon interval to reflect WiFi standard

Noticed by:	Martin <nakal@nurfuerspam.de>
MFC after:	1 week
2005-08-08 03:30:57 +00:00
Sam Leffler
e35ac6b9dd fix debug msg typo
MFC after:	3 days
2005-08-06 04:57:27 +00:00
Sam Leffler
97c973adc4 Fix handling of frames sent prior to a station being authorized
when operating in ap mode.  Previously we allocated a node from the
station table, sent the frame (using the node), then released the
reference that "held the frame in the table".  But while the frame
was in flight the node might be reclaimed which could lead to
problems.  The solution is to add an ieee80211_tmp_node routine
that crafts a node that does exist in a table and so isn't ever
reclaimed; it exists only so long as the associated frame is in flight.

MFC after:	5 days
2005-08-06 04:56:49 +00:00
Sam Leffler
19ad2dd79a close a race between reclaiming a node when a station is inactive
and sending the null data frame used to probe inactive stations

MFC after:	5 days
2005-07-31 06:12:32 +00:00
Sam Leffler
767cee4f5b when bridging internally bypass the bss node as traffic to it
must follow the normal input path

Submitted by:	Michal Mertl
MFC after:	5 days
2005-07-27 04:41:25 +00:00
Sam Leffler
936f15d221 bandaid ni_fails handling so ap's with association failures are
reconsidered after a bit; a proper fix involves more changes to
the scanning infrastructure

Reviewed by:	avatar, David Young
MFC after:	5 days
2005-07-27 02:53:09 +00:00
Sam Leffler
44b666cd0e the AREF flag is only meaningful in ap mode; adhoc neighbors now
are timed out of the sta/neighbor table
2005-07-23 00:16:46 +00:00
Sam Leffler
f66d97f6bc o move inactivity-related debug msgs under IEEE80211_MSG_INACT
o probe inactive neighbors in adhoc mode (they don't have an
  association id so previously were being timed out)

MFC after:	3 days
2005-07-22 23:25:46 +00:00
Sam Leffler
af8418dcb1 split xmit of probe request frame out into a separate routine that
takes explicit parameters; this will be needed when scanning is
decoupled from the state machine to do bg scanning

MFC after:	3 days
2005-07-22 21:11:26 +00:00
Sam Leffler
add59d0875 split 802.11 frame xmit setup code into ieee80211_send_setup
MFC after:	3 days
2005-07-22 20:48:11 +00:00
Sam Leffler
e996233220 simplify ic_newassoc callback
MFC after:	3 days
2005-07-22 17:57:16 +00:00