Implement printer for mac80211_hwsim generic netlink family
Bug: 179393922
Test: run `iw dev wlan0 scan` with modified nlproxy
Change-Id: I2e66b485711aeff3ac74c06f1e2c3340bf753074
diff --git a/automotive/can/1.0/default/libnl++/Android.bp b/automotive/can/1.0/default/libnl++/Android.bp
index a69e302..9e18ba0 100644
--- a/automotive/can/1.0/default/libnl++/Android.bp
+++ b/automotive/can/1.0/default/libnl++/Android.bp
@@ -26,6 +26,7 @@
"protocols/generic/Generic.cpp",
"protocols/generic/GenericMessageBase.cpp",
"protocols/generic/Unknown.cpp",
+ "protocols/generic/families/Mac80211hwsim.cpp",
"protocols/generic/families/Nl80211.cpp",
"protocols/route/Link.cpp",
"protocols/route/Route.cpp",
@@ -33,6 +34,7 @@
"protocols/MessageDefinition.cpp",
"protocols/NetlinkProtocol.cpp",
"protocols/all.cpp",
+ "protocols/structs.cpp",
"Attributes.cpp",
"MessageFactory.cpp",
"MessageMutator.cpp",
diff --git a/automotive/can/1.0/default/libnl++/include/libnl++/Message.h b/automotive/can/1.0/default/libnl++/include/libnl++/Message.h
index 50b3c4b..29f397d 100644
--- a/automotive/can/1.0/default/libnl++/include/libnl++/Message.h
+++ b/automotive/can/1.0/default/libnl++/include/libnl++/Message.h
@@ -34,7 +34,7 @@
* a single instance can only be used by a single thread - the one owning the underlying buffer).
*/
template <typename T>
-class Message {
+class Message : public Buffer<nlmsghdr> {
public:
/**
* Validate buffer contents as a message carrying T data and create instance of parsed message.
@@ -51,7 +51,7 @@
const auto attributes = buf.data<nlattr>(sizeof(T));
- return Message<T>(nlHeader, dataHeader, attributes);
+ return Message<T>(buf, nlHeader, dataHeader, attributes);
}
/**
@@ -94,8 +94,9 @@
const T* operator->() const { return &data; }
private:
- Message(const nlmsghdr& nlHeader, const T& dataHeader, Attributes attributes)
- : header(nlHeader), data(dataHeader), attributes(attributes) {}
+ Message(Buffer<nlmsghdr> buffer, const nlmsghdr& nlHeader, const T& dataHeader,
+ Attributes attributes)
+ : Buffer<nlmsghdr>(buffer), header(nlHeader), data(dataHeader), attributes(attributes) {}
};
} // namespace android::nl
diff --git a/automotive/can/1.0/default/libnl++/include/libnl++/generic/families/mac80211_hwsim.h b/automotive/can/1.0/default/libnl++/include/libnl++/generic/families/mac80211_hwsim.h
new file mode 100644
index 0000000..9b811f8
--- /dev/null
+++ b/automotive/can/1.0/default/libnl++/include/libnl++/generic/families/mac80211_hwsim.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// API definitions from kernel drivers/net/wireless/mac80211_hwsim.h
+
+#define BIT(n) (1 << (n))
+
+enum hwsim_tx_control_flags {
+ HWSIM_TX_CTL_REQ_TX_STATUS = BIT(0),
+ HWSIM_TX_CTL_NO_ACK = BIT(1),
+ HWSIM_TX_STAT_ACK = BIT(2),
+};
+
+enum {
+ HWSIM_CMD_UNSPEC,
+ HWSIM_CMD_REGISTER,
+ HWSIM_CMD_FRAME,
+ HWSIM_CMD_TX_INFO_FRAME,
+ HWSIM_CMD_NEW_RADIO,
+ HWSIM_CMD_DEL_RADIO,
+ HWSIM_CMD_GET_RADIO,
+ HWSIM_CMD_ADD_MAC_ADDR,
+ HWSIM_CMD_DEL_MAC_ADDR,
+};
+
+enum {
+ HWSIM_ATTR_UNSPEC,
+ HWSIM_ATTR_ADDR_RECEIVER,
+ HWSIM_ATTR_ADDR_TRANSMITTER,
+ HWSIM_ATTR_FRAME,
+ HWSIM_ATTR_FLAGS,
+ HWSIM_ATTR_RX_RATE,
+ HWSIM_ATTR_SIGNAL,
+ HWSIM_ATTR_TX_INFO,
+ HWSIM_ATTR_COOKIE,
+ HWSIM_ATTR_CHANNELS,
+ HWSIM_ATTR_RADIO_ID,
+ HWSIM_ATTR_REG_HINT_ALPHA2,
+ HWSIM_ATTR_REG_CUSTOM_REG,
+ HWSIM_ATTR_REG_STRICT_REG,
+ HWSIM_ATTR_SUPPORT_P2P_DEVICE,
+ HWSIM_ATTR_USE_CHANCTX,
+ HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE,
+ HWSIM_ATTR_RADIO_NAME,
+ HWSIM_ATTR_NO_VIF,
+ HWSIM_ATTR_FREQ,
+ HWSIM_ATTR_PAD,
+ HWSIM_ATTR_TX_INFO_FLAGS,
+ HWSIM_ATTR_PERM_ADDR,
+ HWSIM_ATTR_IFTYPE_SUPPORT,
+ HWSIM_ATTR_CIPHER_SUPPORT,
+};
+
+struct hwsim_tx_rate {
+ int8_t idx;
+ uint8_t count;
+} __packed;
+static_assert(sizeof(hwsim_tx_rate) == 2);
+
+#undef BIT
diff --git a/automotive/can/1.0/default/libnl++/protocols/generic/Ctrl.cpp b/automotive/can/1.0/default/libnl++/protocols/generic/Ctrl.cpp
index 1e1ad12..478c383 100644
--- a/automotive/can/1.0/default/libnl++/protocols/generic/Ctrl.cpp
+++ b/automotive/can/1.0/default/libnl++/protocols/generic/Ctrl.cpp
@@ -16,6 +16,7 @@
#include "Ctrl.h"
+#include "families/Mac80211hwsim.h"
#include "families/Nl80211.h"
#include <libnl++/Message.h>
@@ -68,12 +69,15 @@
const auto familyId = msg.attributes.get<uint16_t>(CTRL_ATTR_FAMILY_ID);
const auto familyName = msg.attributes.get<std::string>(CTRL_ATTR_FAMILY_NAME);
- /* For now, we support just a single family. But if you add more, please define proper
+ /* For now, we support just two families. But if you add more, please define proper
* abstraction and not hardcode every name and class here.
*/
if (familyName == "nl80211") {
mFamilyRegister[familyId] = std::make_shared<families::Nl80211>(familyId);
}
+ if (familyName == "MAC80211_HWSIM") {
+ mFamilyRegister[familyId] = std::make_shared<families::Mac80211hwsim>(familyId);
+ }
}
} // namespace android::nl::protocols::generic
diff --git a/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.cpp b/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.cpp
index b7b811b..f92d6c0 100644
--- a/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.cpp
+++ b/automotive/can/1.0/default/libnl++/protocols/generic/GenericMessageBase.cpp
@@ -40,9 +40,9 @@
ss << "genlmsghdr{";
if (commandName.has_value()) {
- ss << "cmd=" << unsigned(data.cmd);
- } else {
ss << "cmd=" << *commandName;
+ } else {
+ ss << "cmd=" << unsigned(data.cmd);
}
ss << ", version=" << unsigned(data.version);
if (data.reserved != 0) ss << ", reserved=" << data.reserved;
diff --git a/automotive/can/1.0/default/libnl++/protocols/generic/families/Mac80211hwsim.cpp b/automotive/can/1.0/default/libnl++/protocols/generic/families/Mac80211hwsim.cpp
new file mode 100644
index 0000000..f85309e
--- /dev/null
+++ b/automotive/can/1.0/default/libnl++/protocols/generic/families/Mac80211hwsim.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Mac80211hwsim.h"
+
+#include "../../structs.h"
+#include "common.h"
+
+#include <libnl++/generic/families/mac80211_hwsim.h>
+
+namespace android::nl::protocols::generic::families {
+
+using DataType = AttributeDefinition::DataType;
+using Flags = AttributeDefinition::Flags;
+
+static void hwsim_tx_rateToStream(std::stringstream& ss, const Buffer<nlattr> attr);
+
+static const FlagsMap txControlFlags{
+ {HWSIM_TX_CTL_REQ_TX_STATUS, "REQ_TX"},
+ {HWSIM_TX_CTL_NO_ACK, "NO_ACK"},
+ {HWSIM_TX_STAT_ACK, "ACK"},
+};
+
+// clang-format off
+Mac80211hwsim::Mac80211hwsim(nlmsgtype_t familyId) : GenericMessageBase(familyId, "hwsim", {
+ {HWSIM_CMD_UNSPEC, "UNSPEC"},
+ {HWSIM_CMD_REGISTER, "REGISTER"},
+ {HWSIM_CMD_FRAME, "FRAME"},
+ {HWSIM_CMD_TX_INFO_FRAME, "TX_INFO_FRAME"},
+ {HWSIM_CMD_NEW_RADIO, "NEW_RADIO"},
+ {HWSIM_CMD_DEL_RADIO, "DEL_RADIO"},
+ {HWSIM_CMD_GET_RADIO, "GET_RADIO"},
+ {HWSIM_CMD_ADD_MAC_ADDR, "ADD_MAC_ADDR"},
+ {HWSIM_CMD_DEL_MAC_ADDR, "DEL_MAC_ADDR"},
+}, {
+ {HWSIM_ATTR_UNSPEC, {"UNSPEC"}},
+ {HWSIM_ATTR_ADDR_RECEIVER, {"ADDR_RECEIVER", DataType::Struct, hwaddrToStream}},
+ {HWSIM_ATTR_ADDR_TRANSMITTER, {"ADDR_TRANSMITTER", DataType::Struct, hwaddrToStream}},
+ {HWSIM_ATTR_FRAME, {"FRAME", DataType::Raw, AttributeMap{}, Flags::Verbose}},
+ {HWSIM_ATTR_FLAGS, {"FLAGS", DataType::Struct, flagsToStream(txControlFlags)}},
+ {HWSIM_ATTR_RX_RATE, {"RX_RATE", DataType::Uint}},
+ {HWSIM_ATTR_SIGNAL, {"SIGNAL", DataType::Uint}},
+ {HWSIM_ATTR_TX_INFO, {"TX_INFO", DataType::Struct, hwsim_tx_rateToStream}},
+ {HWSIM_ATTR_COOKIE, {"COOKIE", DataType::Uint}},
+ {HWSIM_ATTR_CHANNELS, {"CHANNELS", DataType::Uint}},
+ {HWSIM_ATTR_RADIO_ID, {"RADIO_ID", DataType::Uint}},
+ {HWSIM_ATTR_REG_HINT_ALPHA2, {"REG_HINT_ALPHA2", DataType::String}},
+ {HWSIM_ATTR_REG_CUSTOM_REG, {"REG_CUSTOM_REG", DataType::Uint}},
+ {HWSIM_ATTR_REG_STRICT_REG, {"REG_STRICT_REG", DataType::Flag}},
+ {HWSIM_ATTR_SUPPORT_P2P_DEVICE, {"SUPPORT_P2P_DEVICE", DataType::Flag}},
+ {HWSIM_ATTR_USE_CHANCTX, {"USE_CHANCTX", DataType::Flag}},
+ {HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE, {"DESTROY_RADIO_ON_CLOSE", DataType::Flag}},
+ {HWSIM_ATTR_RADIO_NAME, {"RADIO_NAME", DataType::String}},
+ {HWSIM_ATTR_NO_VIF, {"NO_VIF", DataType::Flag}},
+ {HWSIM_ATTR_FREQ, {"FREQ", DataType::Uint}},
+ {HWSIM_ATTR_PAD, {"PAD", DataType::Uint}},
+ {HWSIM_ATTR_TX_INFO_FLAGS, {"TX_INFO_FLAGS"}}, // hwsim_tx_rate_flag
+ {HWSIM_ATTR_PERM_ADDR, {"PERM_ADDR"}},
+ {HWSIM_ATTR_IFTYPE_SUPPORT, {"IFTYPE_SUPPORT", DataType::Uint}}, // NL80211_IFTYPE_STATION etc
+ {HWSIM_ATTR_CIPHER_SUPPORT, {"CIPHER_SUPPORT", DataType::Struct, arrayToStream<int32_t>}},
+}) {}
+// clang-format on
+
+static void hwsim_tx_rateToStream(std::stringstream& ss, const Buffer<nlattr> attr) {
+ ss << '{';
+ bool first = true;
+ for (const auto rate : attr.data<hwsim_tx_rate>().getRaw()) {
+ if (rate.idx == -1) continue;
+
+ ss << (int)rate.idx << ": " << (unsigned)rate.count;
+
+ if (!first) ss << ", ";
+ first = false;
+ }
+ ss << '}';
+}
+
+} // namespace android::nl::protocols::generic::families
diff --git a/automotive/can/1.0/default/libnl++/protocols/generic/families/Mac80211hwsim.h b/automotive/can/1.0/default/libnl++/protocols/generic/families/Mac80211hwsim.h
new file mode 100644
index 0000000..c01eb93
--- /dev/null
+++ b/automotive/can/1.0/default/libnl++/protocols/generic/families/Mac80211hwsim.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "../GenericMessageBase.h"
+
+namespace android::nl::protocols::generic::families {
+
+class Mac80211hwsim : public GenericMessageBase {
+ public:
+ Mac80211hwsim(nlmsgtype_t familyId);
+};
+
+} // namespace android::nl::protocols::generic::families
diff --git a/automotive/can/1.0/default/libnl++/protocols/structs.cpp b/automotive/can/1.0/default/libnl++/protocols/structs.cpp
new file mode 100644
index 0000000..8ff71f0
--- /dev/null
+++ b/automotive/can/1.0/default/libnl++/protocols/structs.cpp
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "structs.h"
+
+#include <iomanip>
+
+namespace android::nl::protocols {
+
+AttributeDefinition::ToStream flagsToStream(FlagsMap flags) {
+ return [flags](std::stringstream& ss, const Buffer<nlattr> attr) {
+ auto val = attr.data<uint64_t>().copyFirst();
+
+ bool first = true;
+ for (const auto& [flag, name] : flags) {
+ if ((val & flag) != flag) continue;
+ val &= ~flag;
+
+ if (!first) ss << '|';
+ first = false;
+
+ ss << name;
+ }
+
+ if (val == 0) return;
+
+ if (!first) ss << '|';
+ ss << std::hex << val << std::dec;
+ };
+}
+
+void hwaddrToStream(std::stringstream& ss, const Buffer<nlattr> attr) {
+ ss << std::hex;
+ bool first = true;
+ for (const auto byte : attr.data<uint8_t>().getRaw()) {
+ if (!first) ss << ':';
+ first = false;
+
+ ss << std::setw(2) << unsigned(byte);
+ }
+ ss << std::dec;
+}
+
+} // namespace android::nl::protocols
diff --git a/automotive/can/1.0/default/libnl++/protocols/structs.h b/automotive/can/1.0/default/libnl++/protocols/structs.h
index 44c17b8..f3a8c44 100644
--- a/automotive/can/1.0/default/libnl++/protocols/structs.h
+++ b/automotive/can/1.0/default/libnl++/protocols/structs.h
@@ -16,6 +16,8 @@
#pragma once
+#include "MessageDefinition.h"
+
#include <sstream>
namespace android::nl::protocols {
@@ -30,4 +32,9 @@
ss << '}';
}
+typedef std::map<uint64_t, std::string> FlagsMap;
+AttributeDefinition::ToStream flagsToStream(FlagsMap flags);
+
+void hwaddrToStream(std::stringstream& ss, const Buffer<nlattr> attr);
+
} // namespace android::nl::protocols