F5/unison
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

wifi: Include MLD Capabilities in Multi-Link Element IE

Browse Source
This commit is contained in:
Stefano Avallone
2023-05-12 17:01:07 +02:00
parent 19eb20f92b
commit b037fea100
2 changed files with 36 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
src/wifi/model/ap-wifi-mac.cc
View File

@@ -686,6 +686,25 @@ ApWifiMac::GetMultiLinkElement(uint8_t linkId, WifiMacType frameType, const Mac4
mle.SetTransitionTimeout(time.Get());
}
// The MLD Capabilities And Operations subfield is present in the Common Info field of the
// Basic Multi-Link element carried in Beacon, Probe Response, (Re)Association Request, and
// (Re)Association Response frames. (Sec. 9.4.2.312.2.3 of 802.11be D3.1)
if (frameType == WIFI_MAC_MGT_BEACON || frameType == WIFI_MAC_MGT_PROBE_RESPONSE ||
frameType == WIFI_MAC_MGT_ASSOCIATION_REQUEST ||
frameType == WIFI_MAC_MGT_REASSOCIATION_REQUEST ||
frameType == WIFI_MAC_MGT_ASSOCIATION_RESPONSE)
{
auto& mldCapabilities = mle.GetCommonInfoBasic().m_mldCapabilities;
mldCapabilities.emplace();
mldCapabilities->maxNSimultaneousLinks = GetNLinks() - 1; // assuming STR for now
mldCapabilities->srsSupport = 0;
EnumValue negSupport;
ehtConfiguration->GetAttributeFailSafe("TidToLinkMappingNegSupport", negSupport);
mldCapabilities->tidToLinkMappingSupport = negSupport.Get();
mldCapabilities->freqSepForStrApMld = 0; // not supported yet
mldCapabilities->aarSupport = 0; // not supported yet
}
// if the Multi-Link Element is being inserted in a (Re)Association Response frame
// and the remote station is affiliated with an MLD, try multi-link setup
if (auto staMldAddress = GetWifiRemoteStationManager(linkId)->GetMldAddress(to);

17
src/wifi/model/sta-wifi-mac.cc
View File

@@ -417,6 +417,23 @@ StaWifiMac::GetMultiLinkElement(bool isReassoc, uint8_t linkId) const
// (Section 9.4.2.312.2.3 of 802.11be D2.3)
}
// The MLD Capabilities And Operations subfield is present in the Common Info field of the
// Basic Multi-Link element carried in Beacon, Probe Response, (Re)Association Request, and
// (Re)Association Response frames. (Sec. 9.4.2.312.2.3 of 802.11be D3.1)
auto& mldCapabilities = multiLinkElement.GetCommonInfoBasic().m_mldCapabilities;
mldCapabilities.emplace();
mldCapabilities->maxNSimultaneousLinks = GetNLinks() - 1; // assuming STR for now
mldCapabilities->srsSupport = 0;
auto ehtConfiguration = GetEhtConfiguration();
NS_ASSERT(ehtConfiguration);
EnumValue negSupport;
ehtConfiguration->GetAttributeFailSafe("TidToLinkMappingNegSupport", negSupport);
mldCapabilities->tidToLinkMappingSupport = negSupport.Get();
mldCapabilities->freqSepForStrApMld = 0; // not supported yet
mldCapabilities->aarSupport = 0; // not supported yet
// For each requested link in addition to the link on which the (Re)Association Request
// frame is transmitted, the Link Info field of the Basic Multi-Link element carried
// in the (Re)Association Request frame shall contain the corresponding Per-STA Profile