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| author | Chun-Yeow Yeoh <yeohchunyeow@cozybit.com> | 2013-10-14 19:08:27 -0700 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-10-28 15:05:28 +0100 |
| commit | 8f2535b92d685c68db4bc699dd78462a646f6ef9 (patch) | |
| tree | e64579c3dfc09f81fbf47f2a76d316721a4da2e3 /net/mac80211/util.c | |
| parent | c0f17eb9b2d4d322c099a0700437209149224583 (diff) | |
| download | blackbird-op-linux-8f2535b92d685c68db4bc699dd78462a646f6ef9.tar.gz blackbird-op-linux-8f2535b92d685c68db4bc699dd78462a646f6ef9.zip | |
mac80211: process the CSA frame for mesh accordingly
Process the CSA frame according to the procedures define in IEEE Std
802.11-2012 section 10.9.8.4.3 as follow:
* The mesh channel switch parameters element (MCSP) must be availabe.
* If the MCSP's TTL is 1, drop the frame but still process the CSA.
* If the MCSP's precedence value is less than or equal to the current
precedence value, drop the frame and do not process the CSA.
* The CSA frame is forwarded after TTL is decremented by 1 and the
initiator field is set to 0. Transmit restrict field and others
are maintained as is.
* No beacon or probe response frame are handled here.
Also, introduce the debug message used for mesh CSA purpose.
Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 65ebe0c5e835..523783cedf6e 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -740,6 +740,7 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, case WLAN_EID_TIMEOUT_INTERVAL: case WLAN_EID_SECONDARY_CHANNEL_OFFSET: case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: + case WLAN_EID_CHAN_SWITCH_PARAM: /* * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible * that if the content gets bigger it might be needed more than once @@ -905,6 +906,14 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, } elems->sec_chan_offs = (void *)pos; break; + case WLAN_EID_CHAN_SWITCH_PARAM: + if (elen != + sizeof(*elems->mesh_chansw_params_ie)) { + elem_parse_failed = true; + break; + } + elems->mesh_chansw_params_ie = (void *)pos; + break; case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: if (!action || elen != sizeof(*elems->wide_bw_chansw_ie)) { |
