Home | History | Annotate | Download | only in net80211
History log of /src/sys/net80211/ieee80211_node.c
RevisionDateAuthorComments
 1.84  05-Jul-2024  rin sys: Drop redundant NULL check before m_freem(9)

m_freem(9) safely has accepted NULL argument at least since 4.2BSD:
https://www.tuhs.org/cgi-bin/utree.pl?file=4.2BSD/usr/src/sys/sys/uipc_mbuf.c

Compile-tested on amd64/ALL.

Suggested by knakahara@
 1.83  24-Jun-2023  msaitoh Fix typo in comment.
 1.82  19-Sep-2021  andvar fix various typos in comments, messages and documentation.
 1.81  30-Nov-2020  msaitoh s/ we we / we /
 1.80  24-Feb-2020  rin branches: 1.80.6;
0x%p --> %p for non-external codes.
 1.79  27-Dec-2019  msaitoh branches: 1.79.2;
s/inital/initial/
 1.78  19-Dec-2019  jakllsch Add comment for previous.
 1.77  19-Dec-2019  jakllsch Do not associate with with any access point if no SSID has been configured.
 1.76  10-Nov-2019  chs in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.
 1.75  18-Jan-2018  maxv branches: 1.75.4;
Style, no functional change.
 1.74  16-Jan-2018  maxv Various fixes: style, remove tiring XXXs, and prevent integer overflow in
ieee80211_setup_rates (normally it already can't happen, because I added a
length check on xrates in ieee80211_recv_mgmt_beacon).
 1.73  16-Jan-2018  maxv Prepend 'sp_' to the name of the fields, so that they can easily be found
via NXR or grep.
 1.72  27-Sep-2016  christos - use ether_snprintf() so that we don't overwrite our buffer for printing
ethernet-like addresses
- make this compile againw without IEEE80211_DEBUG.
 1.71  08-Apr-2016  roy branches: 1.71.2;
Revert prior.
 1.70  06-Apr-2016  roy ieee80211 users in Other OS export rssi and noise as int8_t.
We should not be the odd one out for no good reason and the majority
of the ieee80211 drivers treat rssi as int8_t.
 1.69  24-Aug-2015  pooka sprinkle _KERNEL_OPT
 1.68  18-Oct-2014  snj branches: 1.68.2;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!
 1.67  29-Mar-2013  christos one we is enough.
 1.66  29-Mar-2013  christos Don't hold 2 locks at the same time, causes lockdebug panic. Triggered by
running usb wifi interfaces as access points. What we do instead is check
the generation number upon restart, and if it changed we give up.
 1.65  29-Mar-2013  christos trailing blanks police.
 1.64  10-Jan-2013  christos The IEEE80211_F_ flag prefix was used for both the flags in ieee80211_var.h
and for the rates in ieee80211_proto.h; rename the rate bits as _R_ to avoid
confusion.
 1.63  03-Jan-2009  yamt branches: 1.63.14; 1.63.24;
remove extra semicolons.
 1.62  17-Dec-2008  cegger kill MALLOC and FREE macros.
 1.61  24-Jun-2008  gmcgarry branches: 1.61.4;
Fix uses of #ifdef/#endif inside macro expansions.
 1.60  20-Dec-2007  dyoung branches: 1.60.4; 1.60.6; 1.60.10; 1.60.12; 1.60.14;
Add IEEE80211_NODE_UNLOCK() to match the IEEE80211_NODE_LOCK() .
 1.59  16-Nov-2006  christos branches: 1.59.24; 1.59.34; 1.59.38;
__unused removal on arguments; approved by core.
 1.58  12-Oct-2006  christos - sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386
 1.57  30-Jun-2006  tacha branches: 1.57.4; 1.57.6;
Make 802.11 devices to work with stealth AP even when scanning
channels marked passive.

From FreeBSD.
 1.56  03-May-2006  seanb branches: 1.56.4;
- Make sure scangen sequence number is unique
per iteration.
- From FreeBSD.
- CI: sam
 1.55  28-Mar-2006  dyoung Revamp ieee80211_get_rate. Now it does not use the rateset in the
ic->ic_bss, but it uses the rateset in its new ieee80211_node
argument, instead. If the rate is fixed by ic->ic_fixed_rate, but
the fixed rate is not in the node's rateset, choose a reasonable
default: prefer the lowest basic rate or, if there is no basic
rate, prefer the lowest rate, period.

Change a printf complaint to a debug message.

Adapt drivers to suit new ieee80211_get_rate calling convention.

XXX I really need to replace ieee80211_get_rate with a bitrate
XXX adaptation algorithm. Soon, soon....
 1.54  17-Mar-2006  christos don't use MALLOC with a non-constant size; use malloc instead.
 1.53  08-Mar-2006  lukem branches: 1.53.2;
Use the SI capitalization for "Hz", "kHz", and "MHz" in comments and strings.
Add a space between numbers and Hz unit.
 1.52  02-Mar-2006  dyoung branches: 1.52.2; 1.52.4;
Miscellaneous ath(4) and net80211 updates and bug-fixes coming from
sam@ and various open source repositories:

ath(4):

Ignore "phantom" beacon misses: should stabilize connections
to access points (no more ceaseless link-UP/DOWN indications).
Also, re-synchronize beacon timer using the TSF in the
first beacon received after joining a BSS---this should
also help suppress spurious beacon misses. I am hopeful
that this will help ath(4) lossage reported by perry@ and
smb@.

Add new configuration through sysctl.

Use a shorter calibration interval until IQ calibration
finishes.

Report antenna noise through radiotap.

Rudiments of Radar Detection / Dynamic Frequency Selection.

Update to HAL version 0.9.16.13.

Update open sources for changes to the HAL API.

Add HALs for additional architectures: add big-endian ELF
HALs for sparc64 and for PowerPC. Also add a Alpha HAL.
These new HALs are untested under NetBSD.

ath(4) + net80211:

Make the multicast transmit rate configurable by ioctl.

Miscellaneous bug fixes.
 1.51  25-Feb-2006  wiz Fix some typos.
 1.50  13-Jan-2006  skrll branches: 1.50.2; 1.50.4;
KNF a comment.
 1.49  29-Dec-2005  dyoung branches: 1.49.2;
Rewrite ieee80211_get_rate using clue from sys/dev/ic/athrate-sample.c:
Change -1 to named constant IEEE80211_FIXED_RATE_NONE. ic_fixed_rate
is an index into the ic_sup_rates table, so lookup a fixed rate
there and search the ni->ni_rates table for it.
 1.48  29-Dec-2005  dyoung IBSS merge nit: clear IEEE80211_F_SIBSS (STATUS: start IBSS) when
we merge with another IBSS.
 1.47  23-Nov-2005  dyoung In ieee80211_init_neighbor, delete unsupported rates from an adhoc
node. It's the right thing to do, but it is of pressing importance
because SampleRate's ath_rate_ctl_reset() will convert an unsupported
rate to an invalid rate-index of 0xff, and pass the index to
ath_hal_computetxtime(). ath_hal_computetxtime() does not tolerate
an invalid index; the CPU traps a divide-by-zero fault in
ath_hal_computetxtime().
 1.46  20-Nov-2005  dyoung Repair adhoc mode.

1 Complete initialization of "faked up" ieee80211_nodes,
whose capabilities and other fields are wrong, when we
first receive a beacon or probe response from the
corresponding neighbor. This entails factoring
ieee80211_init_neighbor out of ieee80211_add_neighbor.

2 In adhoc mode, ic->ic_bss is present in the neighbors
table, ic->ic_sta, and it is not necessarily the wrong
node on which to mark statistics for a rx'd packet. Do
not reject ic->ic_bss and fake-up a new node without
comparing its MAC address with the address of the sender
in the rx'd packet. This fixes a memory leak.
 1.45  18-Nov-2005  skrll Resolve conflicts and adapt to NetBSD.

Thanks to dyoung@, scw@, and perry@ for help testing.

2005-08-30 15:27 avatar

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

2005-08-13 18:50 sam

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 18:31 sam

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

2005-08-10 18:42 sam

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 17:22 sam

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

2005-08-09 11:19 rwatson

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

2005-08-08 19:46 sam

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 06:49 sam

use ieee80211_iterate_nodes to retrieve station data; the previous
code walked the list w/o locking

MFC after: 1 week

2005-08-08 04:30 sam

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

2005-08-06 05:57 sam

fix debug msg typo

MFC after: 3 days

2005-08-06 05:56 sam

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

2005-07-31 07:12 sam

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

2005-07-27 05:41 sam

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 03:53 sam

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

2005-07-23 01:16 sam

the AREF flag is only meaningful in ap mode; adhoc neighbors now
are timed out of the sta/neighbor table

2005-07-23 00:25 sam

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 22:11 sam

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 21:48 sam

split 802.11 frame xmit setup code into ieee80211_send_setup

MFC after: 3 days

2005-07-22 18:57 sam

simplify ic_newassoc callback

MFC after: 3 days

2005-07-22 18:54 sam

simplify ieee80211_ibss_merge api

MFC after: 3 days

2005-07-22 18:50 sam

add stats we know we'll need soon and some spare fields for future expansion

MFC after: 3 days

2005-07-22 18:45 sam

simplify tim callback api

MFC after: 3 days

2005-07-22 18:42 sam

don't include 802.3 header in min frame length calculation as it may
not be present for a frag; fixes problem with small (fragmented) frames
being dropped

Obtained from: Atheros
MFC after: 3 days

2005-07-22 18:36 sam

simplify ieee80211_node_authorize and ieee80211_node_unauthorize api's

MFC after: 3 days

2005-07-22 18:31 sam

simplifiy ieee80211_send_nulldata api

MFC after: 3 days

2005-07-22 18:29 sam

simplify rate set api's by removing ic parameter (implicit in node reference)

MFC after: 3 days

2005-07-22 18:21 sam

reject association requests with a wpa/rsn ie when wpa/rsn is not
configured on the ap; previously we either ignored the ie or (possibly)
failed an assertion

Obtained from: Atheros
MFC after: 3 days

2005-07-22 18:16 sam

missed one in last commit; add device name to discard msgs

2005-07-22 18:13 sam

include device name in discard msgs

2005-07-22 18:12 sam

add diag msgs for frames discarded because the direction field is wrong

2005-07-22 18:08 sam

split data frame delivery out to a new function ieee80211_deliver_data

2005-07-22 18:00 sam

o add IEEE80211_IOC_FRAGTHRESHOLD for getting+setting the
tx fragmentation threshold
o fix bounds checking on IEEE80211_IOC_RTSTHRESHOLD

MFC after: 3 days

2005-07-22 17:55 sam

o add IEEE80211_FRAG_DEFAULT
o move default settings for RTS and frag thresholds to ieee80211_var.h

2005-07-22 17:50 sam

diff reduction against p4: define IEEE80211_FIXED_RATE_NONE and use
it instead of -1

2005-07-22 17:37 sam

add flags missed in last merge

2005-07-22 17:36 sam

Diff reduction against p4:
o add ic_flags_ext for eventual extention of ic_flags
o define/reserve flag+capabilities bits for superg,
bg scan, and roaming support
o refactor debug msg macros

MFC after: 3 days

2005-07-22 06:17 sam

send a response when an auth request is denied due to an acl;
might be better to silently ignore the frame but this way we
give stations a chance of figuring out what's wrong

2005-07-22 06:15 sam

remove excess whitespace

2005-07-22 05:55 sam

use IF_HANDOFF when bridging frames internally so if_start gets
called; fixes communication between associated sta's

MFC after: 3 days

2005-07-11 04:06 sam

Handle encrypt of arbitarily fragmented mbuf chains: previously
we bailed if we couldn't collect the 16-bytes of data required
for an aes block cipher in 2 mbufs; now we deal with it. While
here make space accounting signed so a sanity check does the
right thing for malformed mbuf chains.

Approved by: re (scottl)

2005-07-11 04:00 sam

nuke assert that duplicates real check

Reviewed by: avatar
Approved by: re (scottl)
 1.44  25-Sep-2005  dyoung branches: 1.44.6;
Reduce diffs from FreeBSD: remove a gratuitous temporary variable.
Also, remove redundant code that honors the "desired BSSID"
(ic_des_bssid), since FreeBSD already does that.
 1.43  26-Jul-2005  dyoung In ieee80211_refine_node_for_beacon, deal gracefully with a node
that belongs to no table: don't dereference the null ni_table
pointer and panic.
 1.42  26-Jul-2005  dyoung Resolve conflicts.
 1.41  05-Jul-2005  dyoung branches: 1.41.2;
In ieee80211_refine_node_for_beacon, do not decrease the reference
count on the node that is passed in, because it belongs to the
driver. Also, do not increase the reference count on the refined
node, because ieee80211_refine_node_for_beacon's caller (ieee80211_input)
will never decrease the reference count.

As a general rule, reference counts are used for driver code to
assert ownership of ieee80211_nodes that are shared by the driver
and net80211 layer.
 1.40  26-Jun-2005  dyoung Do not build AP support if 'options IEEE80211_NO_HOSTAP'. I will
use this in the INSTALL kernel to save some space.
 1.39  22-Jun-2005  dyoung Resolve conflicts in importation of 18-May-2005 ath(4) / net80211(9)
from FreeBSD. Introduce compatibility shims (sys/dev/ic/ath_netbsd.[ch],
sys/net80211/ieee80211_netbsd.[ch]). Update drivers (an, atu, atw,
awi, ipw, iwi, rtw, wi) for the new net80211(9) API.
 1.38  26-Feb-2005  perry nuke trailing whitespace
 1.37  04-Jan-2005  dyoung branches: 1.37.2; 1.37.4;
IBSS-merge clean-up, inspired by some Linux patches from Jon Anderson
(mail@janderson.ca): remove ieee80211_ibss_merge's TSFT argument.
Do the TSFT comparison in the drivers (ath, atw). Remove a lot of
extraneous debug statements from ieee80211_ibss_merge.

Set the ieee80211_node's state to IEEE80211_STA_BSS after it's been
copied to the ic_bss, not before.

In struct ieee80211_node, make the ni_tstamp field a union of a
uint64_t and the 8 TSF octets so that it's easier to compare a
neighbor's TSF with the local TSF.

Log IBSS merges (Greg Troxel's suggestion). Also log IBSS creation.
These are rare and important events that deserve to be logged.
 1.36  04-Oct-2004  dyoung Drivers are not expected to call ieee80211_find_node_for_beacon,
so don't increase the reference count on a node before returning
it.
 1.35  04-Oct-2004  dyoung Bug fix: in ieee80211_find_txnode, we used to call ieee80211_ref_node(ni)
if ni == NULL and the operating mode was not "ad hoc" or "ad hoc
demo." That crashed the kernel. Now, if the operating mode is
not "ad hoc (demo)," and ni == NULL, return NULL right away.

Also, if ieee80211_dup_bss returns NULL, return NULL right away.
This doesn't fix a bug, but it makes clear how this works.
 1.34  10-Aug-2004  dyoung Cosmetic: remove extraneous blank line.
 1.33  10-Aug-2004  dyoung Make the node table into an LRU cache: least-recently used nodes
are at the end of the node queue. Change the reference-counting
discipline: ni->ni_refcnt indicates how many times net80211 has
granted ni to the driver. Every node in the table with ni_refcnt=0
is eligible to be garbage-collected. The mere presence of a node
in the table does not any longer indicate its auth/assoc state;
nodes have a ni_state variable, now. A sysctl,
net.link.ieee80211.maxnodecache, controls the maximum LRU cache
size.

While I am here, patch ieee80211_find_node_for_beacon to do a "best
match" by bssid/ssid/channel, not a "perfect match." This keeps
net80211 from caching duplicate nodes in the table.
 1.32  29-Jul-2004  mycroft branches: 1.32.2;
Whoops, rearrange the function so the TAILQ_EMPTY() DTRT.
 1.31  29-Jul-2004  mycroft Don't reset the inactivity timer every time we create a node -- this could
cause us to stall and never time out anything.
 1.30  29-Jul-2004  mycroft Implement passive scanning for APs in station and host-AP mode:
ieee80211_input():
* Do not discard management frames in station mode just because they have
the wrong BSSID.
* Do not discard beacons in station and host-AP mode when not scanning.
* Some minor rearrangement. Update node statistics even if the packet is
rejected.
ieee80211_recv_mgmt():
* Accept probe responses and beacons in station and host-AP even when not
scanning.
* Do not immediately free the node created by a beacon or probe response.
XXX Should I check BSSIDs more carefully in ieee80211_recv_mgmt() --
specifically for ASSOC_RESP, REASSOC_RESP, AUTH, DEAUTH and DISASSOC?

Fix a problem with APs that advertise multiple SSIDs:
Change the footprint of ieee80211_find_node_with_channel() to take a SSID as
well, and, if not empty, compared it with the existing nodes. This causes
us to allocate multiple nodes for the same AP. Without this we were only
leaving one SSID in the node table, which might not be the desired one, and
so the interface would fail to fully initialize. (Reported by he@ with a
Cisco 350 AP.)
 1.29  28-Jul-2004  dyoung Always lookup/create a node table entry for Beacons and Probe
Responses. Ad hoc mode uses these entries to track network peers.
This provides passive-scan information for the current channel in
infrastructure mode (XXX really should keep it in a different
table). Host APs will someday use these entries to track APs in
the same ESS for AP-to-AP bridging.
 1.28  26-Jul-2004  mycroft The adhoc mode changes are seriously broken. In host-AP mode, at least, we
must use a full node for received management frames, or we are unable to
complete association and talk to the client. I could add an
"if mode == HOSTAP" to fix this, but instead I am reverting the change and
remanding it to the person who broke it.
 1.27  25-Jul-2004  dyoung Call ieee80211_free_node, not ieee80211_node_leave, on timed-out
IBSS nodes. Do not send an EXPIRE-type DEAUTH message when IBSS
nodes time-out. This ends the panic that rev 1.25 fixed, but
without a dual-use ieee80211_node_leave.
 1.26  25-Jul-2004  dyoung Undo last: Sam Leffler has shown me a better way to avoid ad hoc
lossage.
 1.25  24-Jul-2004  dyoung ieee80211_node_leave runs in all modes, not just hostap mode, so
it must not IASSERT that it is in hostap mode.
 1.24  24-Jul-2004  dyoung NetBSD does not define ieee80211_node_refcnt(). Use ni->ni_refcnt,
instead.
 1.23  23-Jul-2004  mycroft Cleanup of ieee80211_node from madwifi:
* Don't use ifp pointers; use ieee80211com.
* Implement the locking macros that are used under FreeBSD and Linux.
 1.22  23-Jul-2004  mycroft Changes from madwifi:
Abstract some of the node management code into separate functions, and use them
throughout, plugging memory leaks.
Allocate the AID allocation map dynamically.
 1.21  23-Jul-2004  mycroft IEEE80211_F_WEPON -> IEEE80211_F_PRIVACY
 1.20  23-Jul-2004  mycroft Yet more DPRINTF() cleanup.
 1.19  23-Jul-2004  dyoung Fix ieee80211_needs_rxnode so that net80211 does something akin to
a passive scan for APs and IBSSs, always, but without visiting new
channels.
 1.18  23-Jul-2004  mycroft Diff reduction vs. madwifi.
Change the signature of IEEE80211_DPRINTF() so that it uses a bitmask, and
convert some of the if_printf()s to IEEE80211_DPRINTF()s. XXX I'm using a
global variable at the moment rather than per-interface.
 1.17  23-Jul-2004  dyoung Don't be so repetitive repetitive in the ieee80211_needs_rxnode
synopsis.
 1.16  23-Jul-2004  dyoung Bug fix: in ad hoc mode, the principle of least surprise demands
that we create the network with the BSSID preferred by the operator.

[Say the operator set the desired BSSID with 'ifconfig atw0 bssid
02:25:25:75:75:75'. If no such network is found during scanning,
then create the network with that BSSID.]
 1.15  02-Jul-2004  dyoung Remove a few levels of indentation in ieee80211_find_rxnode by
return'ing early.
 1.14  09-May-2004  dyoung In ieee80211_find_rxnode, when we "fake up" a node for an ad hoc
peer, we have to copy the "master" rate table to the faked-up node's
rate table, or else ath0 will complain, "ath0: bogus xmit rate
0x0". Thank you Konstantin KABASSANOV for reporting this problem.
 1.13  06-May-2004  dyoung Add a sysctl, net.ieee80211.debug, for turning debug messages on
and off.

Add a sysctl, net.ieee80211.maxinact, for adjusting the node time-out
interval. After net.ieee80211.maxinact seconds of inactivity, an
AP will purge a peer/client-record. Now the client has to reassociate.
 1.12  01-May-2004  dyoung Doh. Make it compile w/o IEEE80211_DEBUG.
 1.11  30-Apr-2004  dyoung From FreeBSD. Handle ad hoc-mode nodes better.
Use FREE/MALLOC instead of free/malloc. Add back _ieee80211_find_node,
the helper for ieee80211_find_node.
 1.10  13-Jan-2004  dyoung branches: 1.10.2;
NetBSD's KASSERT takes just one argument while FreeBSD's takes two,
so I have added IASSERT(cond, complaint) to the compatibility header
file and s/KASSERT/IASSERT/'d.
 1.9  14-Dec-2003  dyoung Synchronize with FreeBSD sources from 12 Dec 2003.
 1.8  02-Nov-2003  dyoung Cosmetic: get rid of an indent level in ieee80211_find_txnode by
changing an if () ... else to an if () return.
 1.7  29-Oct-2003  dyoung Add ieee80211_find_rxnode and its helper ieee80211_needs_rxnode.
802.11 drivers will use ieee80211_find_rxnode to match each received
packet with the ieee80211_node belonging to the sender. The driver
will use the ieee80211_node to track the sender's RSSI and other
statistics for, e.g., rate adaptation.

ieee80211_find_rxnode "fakes-up" missing ieee80211_nodes in IBSS
mode and in ad-hoc demo mode when it is appropriate. See the comments
in the source.

Also add ieee80211_find_txnode, which looks up the ieee80211_node
belonging to a MAC destination. ieee80211_find_txnode will also
fake-up missing nodes in IBSS/ad-hoc demo mode.

In ieee80211_encap, use ieee80211_find_txnode. This fixes the bug
in ad hoc packet-transmission reported by Greg Troxel, Urban Boquist,
and Kurt Schreiner.
 1.6  15-Oct-2003  dyoung Add WEP shared-key authentication.
 1.5  13-Oct-2003  dyoung More changes to the new 802.11 layer:

* Add Kevin Lahey's power-saving support from the old 802.11 layer

* Add my stop-gap rate-selection routine, ieee80211_get_rate,
from the old 802.11 layer

* Also from the old 802.11 layer: factor ieee80211_match_bss out
of ieee80211_end_scan, since atw(4) uses it for IBSS merges.
 1.4  23-Sep-2003  dyoung Make ieee80211_unref_node compile.

#ifdef __FreeBSD__ a lot of lines, and put the NetBSDisms into the #else
half.

Add ieee80211_node_{dec,inc}ref to ieee80211_node.h.
 1.3  14-Sep-2003  dyoung Insert RCSIDs.
 1.2  07-Sep-2003  dyoung First stab at producing a unified NetBSD/FreeBSD 802.11 layer,
striving to keep the diffs short and simple.

* Replace FreeBSDisms (e.g. struct arpcom) with conditionally-compiled
NetBSDism (struct ethercom).

* Add compatibility shims in ieee80211_compat.*: provide NetBSD with
if_printf, for example.

* Convert FreeBSD node mutex uses to generic node critical-section
protection (ieee80211_node_critsect_begin, _end), replace
FreeBSD atomic arithmetic with generic alternative, and implement
generics in NetBSD

* Provide NetBSD-style 802.11 ioctls

* Style nits
 1.1  30-Aug-2003  dyoung branches: 1.1.1;
Initial revision
 1.1.1.6  18-Nov-2005  skrll Import FreeBSD's net80211(9) of 1-nov-2005
 1.1.1.5  26-Jul-2005  dyoung Import FreeBSD's net80211(9) of 2005-07-11
 1.1.1.4  21-Jun-2005  dyoung Import FreeBSD's net80211(9) of 2005-05-18
 1.1.1.3  29-Apr-2004  dyoung Import FreeBSD's net80211 of 28-apr-2004
 1.1.1.2  13-Dec-2003  dyoung Import FreeBSD's net80211 of 12 Dec 2003
 1.1.1.1  30-Aug-2003  dyoung Pull in net80211/ from FreeBSD. This contains Sam Leffler's
enhancements to the 802.11 layer, which are necessary for ath(4),
the Atheros-chipset driver.
 1.10.2.1  03-Aug-2004  jmc Pullup patch (requested by he in ticket #729)

Fix a problem with APs advertising multiple SSIDs by
allocating multiple nodes for the same AP when the announced
SSID differs. Fixes PR#26377.
 1.32.2.10  11-Dec-2005  christos Sync with head.
 1.32.2.9  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.32.2.8  04-Mar-2005  skrll Sync with HEAD.

Hi Perry!
 1.32.2.7  17-Jan-2005  skrll Sync with HEAD.
 1.32.2.6  19-Oct-2004  skrll Sync with HEAD
 1.32.2.5  21-Sep-2004  skrll Fix the sync with head I botched.
 1.32.2.4  18-Sep-2004  skrll Sync with HEAD.
 1.32.2.3  12-Aug-2004  skrll Sync with HEAD.
 1.32.2.2  03-Aug-2004  skrll Sync with HEAD
 1.32.2.1  29-Jul-2004  skrll file ieee80211_node.c was added on branch ktrace-lwp on 2004-08-03 10:54:21 +0000
 1.37.4.1  19-Mar-2005  yamt sync with head. xen and whitespace. xen part is not finished.
 1.37.2.1  29-Apr-2005  kent sync with -current
 1.41.2.3  21-Jan-2008  yamt sync with head
 1.41.2.2  30-Dec-2006  yamt sync with head.
 1.41.2.1  21-Jun-2006  yamt sync with head.
 1.44.6.2  29-Nov-2005  yamt sync with head.
 1.44.6.1  22-Nov-2005  yamt sync with head.
 1.49.2.2  01-Mar-2006  yamt sync with head.
 1.49.2.1  15-Jan-2006  yamt sync with head.
 1.50.4.2  01-Jun-2006  kardel Sync with head.
 1.50.4.1  22-Apr-2006  simonb Sync with head.
 1.50.2.1  09-Sep-2006  rpaulo sync with head
 1.52.4.2  11-May-2006  elad sync with head
 1.52.4.1  19-Apr-2006  elad sync with head.
 1.52.2.4  11-Aug-2006  yamt sync with head
 1.52.2.3  24-May-2006  yamt sync with head.
 1.52.2.2  01-Apr-2006  yamt sync with head.
 1.52.2.1  13-Mar-2006  yamt sync with head.
 1.53.2.2  24-May-2006  tron Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
 1.53.2.1  28-Mar-2006  tron Merge 2006-03-28 NetBSD-current into the "peter-altq" branch.
 1.56.4.1  13-Jul-2006  gdamore Merge from HEAD.
 1.57.6.2  10-Dec-2006  yamt sync with head.
 1.57.6.1  22-Oct-2006  yamt sync with head
 1.57.4.1  18-Nov-2006  ad Sync with head.
 1.59.38.1  02-Jan-2008  bouyer Sync with HEAD
 1.59.34.1  26-Dec-2007  ad Sync with head.
 1.59.24.1  09-Jan-2008  matt sync with HEAD
 1.60.14.1  27-Jun-2008  simonb Sync with head.
 1.60.12.1  18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.60.10.1  04-May-2009  yamt sync with head.
 1.60.6.2  17-Jan-2009  mjf Sync with HEAD.
 1.60.6.1  29-Jun-2008  mjf Sync with HEAD.
 1.60.4.1  22-Feb-2008  skrll Beginning of a sync with net80211 from FreeBSD. Lots to do.

Sources taken from 2008-02-22.
 1.61.4.1  19-Jan-2009  skrll Sync with HEAD.
 1.63.24.3  03-Dec-2017  jdolecek update from HEAD
 1.63.24.2  23-Jun-2013  tls resync from head
 1.63.24.1  25-Feb-2013  tls resync with head
 1.63.14.2  22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.63.14.1  23-Jan-2013  yamt sync with head
 1.68.2.2  05-Oct-2016  skrll Sync with HEAD
 1.68.2.1  22-Sep-2015  skrll Sync with HEAD
 1.71.2.1  04-Nov-2016  pgoyette Sync with HEAD
 1.75.4.7  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.75.4.6  10-Jun-2019  christos Sync with HEAD
 1.75.4.5  15-Aug-2018  phil Final changes for 200 hour contract. Still a lot of work to do.
With these changes, Station mode works with an open AP.
 1.75.4.4  03-Aug-2018  phil State Save:
Scanning works, can see the broadcasts and stations.
Association appears to work. (open networks only, no encryption yet.)
IP traffic doesn't flow yet, not sure where the error is.
Added back more NetBSD ioctls not in the FreeBSD code. Still have
more to go.
Updated my TESTWIFI kernel config.
 1.75.4.3  16-Jul-2018  phil State save.
urtwn now can attach and shows up in the "ifconfig -a" list.
 1.75.4.2  12-Jul-2018  phil State save. New kernel config for this brach only. TESTWIFI does
produce a kernel. It is not working. athn files not compiling yet
and commented out of the TESTWIFI kernel, which only has urtwn 802.11
driver enabled. ieee80211_alq.c and ieee80211_ddb.c not compiling yet.
 1.75.4.1  28-Jun-2018  phil Start of WiFi refresh. Copy of FreeBSD net80211 directory with git
mirror commit id of 09e3123164ec345822e00465039503686efde455, no
changes yet. ieee80211_netbsd.[ch] from ieee80211_freebsd.[ch].
 1.79.2.1  29-Feb-2020  ad Sync with head.
 1.80.6.1  14-Dec-2020  thorpej Sync w/ HEAD.

RSS XML Feed