diff options
| author | Mordechay Goodstein <mordechay.goodstein@intel.com> | 2023-03-01 12:09:35 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-03-07 10:59:10 +0100 |
| commit | 9179dff82598ab8b4e88dcc93c9e26a2594efd1a (patch) | |
| tree | 8a3f6d43e7e6ef8e78d3c31c0a5f1509337efa39 /drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | |
| parent | 18cbf7c089ba70fefe1b4c01af28753cabfbf38f (diff) | |
wifi: mac80211: add support for driver adding radiotap TLVs
The new TLV format enables adding TLVs after the fixed
fields in radiotap, as part of the radiotap header.
Support this and move vendor data to the TLV format,
allowing a reuse of the RX_FLAG_RADIOTAP_VENDOR_DATA as
the new RX_FLAG_RADIOTAP_TLV_AT_END flag.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230301115906.b18fd5da8477.I576400ec40a7b35ef97a3b09a99b3a49e9174786@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c index 549dbe0be223..d1769464d75b 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c @@ -209,33 +209,34 @@ static void iwl_mvm_add_rtap_sniffer_config(struct iwl_mvm *mvm, struct sk_buff *skb) { struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); - struct ieee80211_vendor_radiotap *radiotap; - const int size = sizeof(*radiotap) + sizeof(__le16); + struct ieee80211_radiotap_vendor_tlv *radiotap; + const u16 vendor_data_len = sizeof(mvm->cur_aid); + const u16 padding = ALIGN(vendor_data_len, 4) - vendor_data_len; if (!mvm->cur_aid) return; - /* ensure alignment */ - BUILD_BUG_ON((size + 2) % 4); + radiotap = skb_put(skb, sizeof(*radiotap) + vendor_data_len + padding); + radiotap->type = cpu_to_le16(IEEE80211_RADIOTAP_VENDOR_NAMESPACE); + radiotap->len = cpu_to_le16(sizeof(*radiotap) - + sizeof(struct ieee80211_radiotap_tlv) + + vendor_data_len); - radiotap = skb_put(skb, size + 2); - radiotap->align = 1; /* Intel OUI */ radiotap->oui[0] = 0xf6; radiotap->oui[1] = 0x54; radiotap->oui[2] = 0x25; /* radiotap sniffer config sub-namespace */ - radiotap->subns = 1; - radiotap->present = 0x1; - radiotap->len = size - sizeof(*radiotap); - radiotap->pad = 2; - + radiotap->oui_subtype = 1; + radiotap->vendor_type = 0; + /* clear reserved field */ + radiotap->reserved = 0; /* fill the data now */ memcpy(radiotap->data, &mvm->cur_aid, sizeof(mvm->cur_aid)); /* and clear the padding */ - memset(radiotap->data + sizeof(__le16), 0, radiotap->pad); + memset(radiotap->data + vendor_data_len, 0, padding); - rx_status->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA; + rx_status->flag |= RX_FLAG_RADIOTAP_TLV_AT_END; } /* iwl_mvm_pass_packet_to_mac80211 - passes the packet for mac80211 */ |