Revert mCookieTagMap dump in TrafficController

aosp/2167063 moved mCookieTagMap dump from TrafficController to
NetworkStatsService.
But this dump was used from Cts TagSocketTest.
So, this CL re-adds mCookieTagMap dump to TrafficController to avoid
failure of released Cts.
Upcoming CL will update Cts test to check dump both from
TrafficController and NetworkStatsService.
And after the old Cts support period is over, mCookieTagMap dump in
TrafficController can be removed.

Bug: 241787285
Test: atest TagSocketTest TrafficControllerTest
Change-Id: Ie2ef09fa7d91cf96f56c5efcbe9d863dd68a1020

service/native/TrafficController.cpp

@@ -612,6 +612,8 @@ void TrafficController::dump(int fd, bool verbose) {
     ScopedIndent indentPreBpfModule(dw);
 
     dw.blankline();
+    dw.println("mCookieTagMap status: %s",
+               getMapStatus(mCookieTagMap.getMap(), COOKIE_TAG_MAP_PATH).c_str());
     dw.println("mStatsMapA status: %s",
                getMapStatus(mStatsMapA.getMap(), STATS_MAP_A_PATH).c_str());
     dw.println("mStatsMapB status: %s",
@@ -647,6 +649,21 @@ void TrafficController::dump(int fd, bool verbose) {
 
     ScopedIndent indentForMapContent(dw);
 
+    // Print CookieTagMap content.
+    // TagSocketTest in CTS was using the output of mCookieTagMap dump.
+    // So, mCookieTagMap dump can not be removed until the previous CTS support period is over.
+    dumpBpfMap("mCookieTagMap", dw, "");
+    const auto printCookieTagInfo = [&dw](const uint64_t& key, const UidTagValue& value,
+                                          const BpfMap<uint64_t, UidTagValue>&) {
+        dw.println("cookie=%" PRIu64 " tag=0x%x uid=%u", key, value.tag, value.uid);
+        return base::Result<void>();
+    };
+    base::Result<void> res = mCookieTagMap.iterateWithValue(printCookieTagInfo);
+    if (!res.ok()) {
+        dw.println("mCookieTagMap print end with error: %s", res.error().message().c_str());
+    }
+
+
     // Print uidStatsMap content.
     std::string statsHeader = StringPrintf("ifaceIndex ifaceName tag_hex uid_int cnt_set rxBytes"
                                            " rxPackets txBytes txPackets");
@@ -663,7 +680,7 @@ void TrafficController::dump(int fd, bool verbose) {
                    value.rxPackets, value.txBytes, value.txPackets);
         return base::Result<void>();
     };
-    base::Result<void> res = mStatsMapA.iterateWithValue(printStatsInfo);
+    res = mStatsMapA.iterateWithValue(printStatsInfo);
     if (!res.ok()) {
         dw.println("mStatsMapA print end with error: %s", res.error().message().c_str());
     }

service/native/TrafficControllerTest.cpp

@@ -791,6 +791,8 @@ TEST_F(TrafficControllerTest, TestDumpsys) {
     // ifaceIndex ifaceName tag_hex uid_int cnt_set rxBytes rxPackets txBytes txPackets
     // 999 test0 0x2a 10086 1 100 1 0 0
     std::vector<std::string> expectedLines = {
+        "mCookieTagMap:",
+        fmt::format("cookie={} tag={:#x} uid={}", TEST_COOKIE, TEST_TAG, TEST_UID),
         "mStatsMapA",
         "ifaceIndex ifaceName tag_hex uid_int cnt_set rxBytes rxPackets txBytes txPackets",
         fmt::format("{} {} {:#x} {} {} {} {} {} {}",
@@ -826,6 +828,7 @@ TEST_F(TrafficControllerTest, dumpsysInvalidMaps) {
             "Read value of map -1 failed: Bad file descriptor";
 
     std::vector<std::string> expectedLines = {
+        fmt::format("mCookieTagMap {}", kErrIterate),
         fmt::format("mStatsMapA {}", kErrIterate),
         fmt::format("mStatsMapB {}", kErrIterate),
         fmt::format("mIfaceIndexNameMap {}", kErrIterate),