wifi: Add provision to create/delete dynamic interface(s)
This commit does following:
create/delete softap interface at runtime, if needed.
create/delete station interface at runtime, if needed.
Bug: 146539882
Bug: 121156971
Test: Manual - Basic wifi sanity test.
Change-Id: I6ab9c9e134d2f09e27283c9e60df885392834de4
Signed-off-by: Vinay Gannevaram <quic_vganneva@quicinc.com>
diff --git a/wifi/1.4/default/hidl_struct_util.cpp b/wifi/1.4/default/hidl_struct_util.cpp
index 4996e35..fd1d5b1 100644
--- a/wifi/1.4/default/hidl_struct_util.cpp
+++ b/wifi/1.4/default/hidl_struct_util.cpp
@@ -2715,6 +2715,21 @@
}
return true;
}
+
+legacy_hal::wifi_interface_type convertHidlIfaceTypeToLegacy(
+ IfaceType hidl_interface_type) {
+ switch (hidl_interface_type) {
+ case IfaceType::STA:
+ return legacy_hal::WIFI_INTERFACE_TYPE_STA;
+ case IfaceType::AP:
+ return legacy_hal::WIFI_INTERFACE_TYPE_AP;
+ case IfaceType::P2P:
+ return legacy_hal::WIFI_INTERFACE_TYPE_P2P;
+ case IfaceType::NAN:
+ return legacy_hal::WIFI_INTERFACE_TYPE_NAN;
+ }
+ CHECK(false);
+}
} // namespace hidl_struct_util
} // namespace implementation
} // namespace V1_4
diff --git a/wifi/1.4/default/hidl_struct_util.h b/wifi/1.4/default/hidl_struct_util.h
index d040c1f..929f877 100644
--- a/wifi/1.4/default/hidl_struct_util.h
+++ b/wifi/1.4/default/hidl_struct_util.h
@@ -65,6 +65,8 @@
bool convertLegacyWifiMacInfosToHidl(
const std::vector<legacy_hal::WifiMacInfo>& legacy_mac_infos,
std::vector<IWifiChipEventCallback::RadioModeInfo>* hidl_radio_mode_infos);
+legacy_hal::wifi_interface_type convertHidlIfaceTypeToLegacy(
+ IfaceType hidl_interface_type);
// STA iface conversion methods.
bool convertLegacyFeaturesToHidlStaCapabilities(
diff --git a/wifi/1.4/default/wifi_chip.cpp b/wifi/1.4/default/wifi_chip.cpp
index 3498510..4c9fad1 100644
--- a/wifi/1.4/default/wifi_chip.cpp
+++ b/wifi/1.4/default/wifi_chip.cpp
@@ -797,6 +797,15 @@
return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
}
std::string ifname = allocateApIfaceName();
+ legacy_hal::wifi_error legacy_status =
+ legacy_hal_.lock()->createVirtualInterface(
+ ifname,
+ hidl_struct_util::convertHidlIfaceTypeToLegacy(IfaceType::AP));
+ if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+ LOG(ERROR) << "Failed to add interface: " << ifname << " "
+ << legacyErrorToString(legacy_status);
+ return {createWifiStatusFromLegacyError(legacy_status), {}};
+ }
sp<WifiApIface> iface = new WifiApIface(ifname, legacy_hal_, iface_util_);
ap_ifaces_.push_back(iface);
for (const auto& callback : event_cb_handler_.getCallbacks()) {
@@ -835,6 +844,12 @@
// nan/rtt objects over AP iface. But, there is no harm to do it
// here and not make that assumption all over the place.
invalidateAndRemoveDependencies(ifname);
+ legacy_hal::wifi_error legacy_status =
+ legacy_hal_.lock()->deleteVirtualInterface(ifname);
+ if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+ LOG(ERROR) << "Failed to remove interface: " << ifname << " "
+ << legacyErrorToString(legacy_status);
+ }
invalidateAndClear(ap_ifaces_, iface);
for (const auto& callback : event_cb_handler_.getCallbacks()) {
if (!callback->onIfaceRemoved(IfaceType::AP, ifname).isOk()) {
@@ -944,6 +959,15 @@
return {createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE), {}};
}
std::string ifname = allocateStaIfaceName();
+ legacy_hal::wifi_error legacy_status =
+ legacy_hal_.lock()->createVirtualInterface(
+ ifname,
+ hidl_struct_util::convertHidlIfaceTypeToLegacy(IfaceType::STA));
+ if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+ LOG(ERROR) << "Failed to add interface: " << ifname << " "
+ << legacyErrorToString(legacy_status);
+ return {createWifiStatusFromLegacyError(legacy_status), {}};
+ }
sp<WifiStaIface> iface = new WifiStaIface(ifname, legacy_hal_, iface_util_);
sta_ifaces_.push_back(iface);
for (const auto& callback : event_cb_handler_.getCallbacks()) {
@@ -979,6 +1003,12 @@
}
// Invalidate & remove any dependent objects first.
invalidateAndRemoveDependencies(ifname);
+ legacy_hal::wifi_error legacy_status =
+ legacy_hal_.lock()->deleteVirtualInterface(ifname);
+ if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+ LOG(ERROR) << "Failed to remove interface: " << ifname << " "
+ << legacyErrorToString(legacy_status);
+ }
invalidateAndClear(sta_ifaces_, iface);
for (const auto& callback : event_cb_handler_.getCallbacks()) {
if (!callback->onIfaceRemoved(IfaceType::STA, ifname).isOk()) {
diff --git a/wifi/1.4/default/wifi_legacy_hal.cpp b/wifi/1.4/default/wifi_legacy_hal.cpp
index 3ca3226..a040c89 100644
--- a/wifi/1.4/default/wifi_legacy_hal.cpp
+++ b/wifi/1.4/default/wifi_legacy_hal.cpp
@@ -19,6 +19,7 @@
#include <android-base/logging.h>
#include <cutils/properties.h>
+#include <net/if.h>
#include "hidl_sync_util.h"
#include "wifi_legacy_hal.h"
@@ -1355,6 +1356,7 @@
LOG(ERROR) << "Failed to enumerate interface handles";
return status;
}
+ iface_name_to_handle_.clear();
for (int i = 0; i < num_iface_handles; ++i) {
std::array<char, IFNAMSIZ> iface_name_arr = {};
status = global_func_table_.wifi_get_iface_name(
@@ -1421,6 +1423,39 @@
return {status, std::move(cached_scan_results)};
}
+wifi_error WifiLegacyHal::createVirtualInterface(const std::string& ifname,
+ wifi_interface_type iftype) {
+ // Create the interface if it doesn't exist. If interface already exist,
+ // Vendor Hal should return WIFI_SUCCESS.
+ wifi_error status = global_func_table_.wifi_virtual_interface_create(
+ global_handle_, ifname.c_str(), iftype);
+ return handleVirtualInterfaceCreateOrDeleteStatus(ifname, status);
+}
+
+wifi_error WifiLegacyHal::deleteVirtualInterface(const std::string& ifname) {
+ // Delete the interface if it was created dynamically.
+ wifi_error status = global_func_table_.wifi_virtual_interface_delete(
+ global_handle_, ifname.c_str());
+ return handleVirtualInterfaceCreateOrDeleteStatus(ifname, status);
+}
+
+wifi_error WifiLegacyHal::handleVirtualInterfaceCreateOrDeleteStatus(
+ const std::string& ifname, wifi_error status) {
+ if (status == WIFI_SUCCESS) {
+ // refresh list of handlers now.
+ status = retrieveIfaceHandles();
+ } else if (status == WIFI_ERROR_NOT_SUPPORTED) {
+ // Vendor hal does not implement this API. Such vendor implementations
+ // are expected to create / delete interface by other means.
+
+ // check if interface exists.
+ if (if_nametoindex(ifname.c_str())) {
+ status = retrieveIfaceHandles();
+ }
+ }
+ return status;
+}
+
void WifiLegacyHal::invalidate() {
global_handle_ = nullptr;
iface_name_to_handle_.clear();
diff --git a/wifi/1.4/default/wifi_legacy_hal.h b/wifi/1.4/default/wifi_legacy_hal.h
index a7b40a0..72cf197 100644
--- a/wifi/1.4/default/wifi_legacy_hal.h
+++ b/wifi/1.4/default/wifi_legacy_hal.h
@@ -369,6 +369,11 @@
wifi_error setCountryCode(const std::string& iface_name,
std::array<int8_t, 2> code);
+ // interface functions.
+ wifi_error createVirtualInterface(const std::string& ifname,
+ wifi_interface_type iftype);
+ wifi_error deleteVirtualInterface(const std::string& ifname);
+
private:
// Retrieve interface handles for all the available interfaces.
wifi_error retrieveIfaceHandles();
@@ -380,6 +385,9 @@
std::pair<wifi_error, std::vector<wifi_cached_scan_results>>
getGscanCachedResults(const std::string& iface_name);
void invalidate();
+ // Handles wifi (error) status of Virtual interface create/delete
+ wifi_error handleVirtualInterfaceCreateOrDeleteStatus(
+ const std::string& ifname, wifi_error status);
// Global function table of legacy HAL.
wifi_hal_fn global_func_table_;
diff --git a/wifi/1.4/default/wifi_legacy_hal_stubs.cpp b/wifi/1.4/default/wifi_legacy_hal_stubs.cpp
index bbe470e..6945b4c 100644
--- a/wifi/1.4/default/wifi_legacy_hal_stubs.cpp
+++ b/wifi/1.4/default/wifi_legacy_hal_stubs.cpp
@@ -139,6 +139,8 @@
populateStubFor(&hal_fn->wifi_set_radio_mode_change_handler);
populateStubFor(&hal_fn->wifi_set_latency_mode);
populateStubFor(&hal_fn->wifi_set_thermal_mitigation_mode);
+ populateStubFor(&hal_fn->wifi_virtual_interface_create);
+ populateStubFor(&hal_fn->wifi_virtual_interface_delete);
return true;
}
} // namespace legacy_hal