diff --git a/.travis.yml b/.travis.yml
index de320b59a3a..e43a89e453a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,9 +4,11 @@ before_install:
   - sudo add-apt-repository ppa:h-rayflood/llvm -y
   - sudo apt-get update -qq
   - sudo apt-get install -qq libgtest-dev libgflags-dev python-virtualenv clang-3.5
+  - sudo pip install cpp-coveralls
 env:
   global:
     - RUBY_VERSION=2.1
+    - COVERALLS_PARALLEL=true
   matrix:
     - CONFIG=dbg TEST=c
     - CONFIG=dbg TEST=c++
@@ -15,9 +17,15 @@ env:
     - CONFIG=opt TEST=node
     - CONFIG=opt TEST=ruby
     - CONFIG=opt TEST=python
+    - CONFIG=gcov TEST=c
+    - CONFIG=gcov TEST=c++
 script:
   - rvm use $RUBY_VERSION
   - gem install bundler
   - ./tools/run_tests/run_tests.py -l $TEST -t -j 16 -c $CONFIG -s 4.0
+after_success:
+  - if [ "$CONFIG" = "gcov" ] ; then coveralls --exclude third_party --exclude gens -b. --gcov-options '\-p' ; fi
 notifications:
-  email: false
\ No newline at end of file
+  email: false
+  webhooks:
+    - https://coveralls.io/webhook?repo_token=54IxAHPjJNdQJzJAhPU0MFpCtg7KvcydQ
diff --git a/Makefile b/Makefile
index 30be4a00479..470cdf539df 100644
--- a/Makefile
+++ b/Makefile
@@ -550,6 +550,7 @@ qps_server: $(BINDIR)/$(CONFIG)/qps_server
 qps_server_async: $(BINDIR)/$(CONFIG)/qps_server_async
 status_test: $(BINDIR)/$(CONFIG)/status_test
 thread_pool_test: $(BINDIR)/$(CONFIG)/thread_pool_test
+chttp2_fake_security_bad_hostname_test: $(BINDIR)/$(CONFIG)/chttp2_fake_security_bad_hostname_test
 chttp2_fake_security_cancel_after_accept_test: $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_test
 chttp2_fake_security_cancel_after_accept_and_writes_closed_test: $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_and_writes_closed_test
 chttp2_fake_security_cancel_after_invoke_test: $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_invoke_test
@@ -598,6 +599,7 @@ chttp2_fake_security_simple_delayed_request_legacy_test: $(BINDIR)/$(CONFIG)/cht
 chttp2_fake_security_simple_request_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_fake_security_simple_request_legacy_test
 chttp2_fake_security_thread_stress_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_fake_security_thread_stress_legacy_test
 chttp2_fake_security_writes_done_hangs_with_pending_read_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_fake_security_writes_done_hangs_with_pending_read_legacy_test
+chttp2_fullstack_bad_hostname_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_bad_hostname_test
 chttp2_fullstack_cancel_after_accept_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_accept_test
 chttp2_fullstack_cancel_after_accept_and_writes_closed_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_accept_and_writes_closed_test
 chttp2_fullstack_cancel_after_invoke_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_invoke_test
@@ -646,6 +648,7 @@ chttp2_fullstack_simple_delayed_request_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_
 chttp2_fullstack_simple_request_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_simple_request_legacy_test
 chttp2_fullstack_thread_stress_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_thread_stress_legacy_test
 chttp2_fullstack_writes_done_hangs_with_pending_read_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_writes_done_hangs_with_pending_read_legacy_test
+chttp2_fullstack_uds_bad_hostname_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_bad_hostname_test
 chttp2_fullstack_uds_cancel_after_accept_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_after_accept_test
 chttp2_fullstack_uds_cancel_after_accept_and_writes_closed_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_after_accept_and_writes_closed_test
 chttp2_fullstack_uds_cancel_after_invoke_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_after_invoke_test
@@ -694,6 +697,7 @@ chttp2_fullstack_uds_simple_delayed_request_legacy_test: $(BINDIR)/$(CONFIG)/cht
 chttp2_fullstack_uds_simple_request_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_simple_request_legacy_test
 chttp2_fullstack_uds_thread_stress_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_thread_stress_legacy_test
 chttp2_fullstack_uds_writes_done_hangs_with_pending_read_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_writes_done_hangs_with_pending_read_legacy_test
+chttp2_simple_ssl_fullstack_bad_hostname_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_bad_hostname_test
 chttp2_simple_ssl_fullstack_cancel_after_accept_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_test
 chttp2_simple_ssl_fullstack_cancel_after_accept_and_writes_closed_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_and_writes_closed_test
 chttp2_simple_ssl_fullstack_cancel_after_invoke_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_invoke_test
@@ -742,6 +746,7 @@ chttp2_simple_ssl_fullstack_simple_delayed_request_legacy_test: $(BINDIR)/$(CONF
 chttp2_simple_ssl_fullstack_simple_request_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_request_legacy_test
 chttp2_simple_ssl_fullstack_thread_stress_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_thread_stress_legacy_test
 chttp2_simple_ssl_fullstack_writes_done_hangs_with_pending_read_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_writes_done_hangs_with_pending_read_legacy_test
+chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test
 chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_test
 chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_and_writes_closed_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_and_writes_closed_test
 chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_invoke_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_invoke_test
@@ -790,6 +795,7 @@ chttp2_simple_ssl_with_oauth2_fullstack_simple_delayed_request_legacy_test: $(BI
 chttp2_simple_ssl_with_oauth2_fullstack_simple_request_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_simple_request_legacy_test
 chttp2_simple_ssl_with_oauth2_fullstack_thread_stress_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_thread_stress_legacy_test
 chttp2_simple_ssl_with_oauth2_fullstack_writes_done_hangs_with_pending_read_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_writes_done_hangs_with_pending_read_legacy_test
+chttp2_socket_pair_bad_hostname_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_bad_hostname_test
 chttp2_socket_pair_cancel_after_accept_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_test
 chttp2_socket_pair_cancel_after_accept_and_writes_closed_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_and_writes_closed_test
 chttp2_socket_pair_cancel_after_invoke_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_invoke_test
@@ -838,6 +844,7 @@ chttp2_socket_pair_simple_delayed_request_legacy_test: $(BINDIR)/$(CONFIG)/chttp
 chttp2_socket_pair_simple_request_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_request_legacy_test
 chttp2_socket_pair_thread_stress_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_thread_stress_legacy_test
 chttp2_socket_pair_writes_done_hangs_with_pending_read_legacy_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_writes_done_hangs_with_pending_read_legacy_test
+chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test
 chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_test
 chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_and_writes_closed_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_and_writes_closed_test
 chttp2_socket_pair_one_byte_at_a_time_cancel_after_invoke_test: $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_invoke_test
@@ -952,13 +959,13 @@ plugins: $(PROTOC_PLUGINS)
 
 privatelibs: privatelibs_c privatelibs_cxx
 
-privatelibs_c:  $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fake_security.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fullstack_uds.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_simple_ssl_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_simple_ssl_with_oauth2_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_socket_pair.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_socket_pair_one_byte_at_a_time.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept_and_writes_closed.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_invoke.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_before_invoke.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_in_a_vacuum.a $(LIBDIR)/$(CONFIG)/libend2end_test_census_simple_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_disappearing_server.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_inflight_calls.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_tags.a $(LIBDIR)/$(CONFIG)/libend2end_test_empty_batch.a $(LIBDIR)/$(CONFIG)/libend2end_test_graceful_server_shutdown.a $(LIBDIR)/$(CONFIG)/libend2end_test_invoke_large_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_max_concurrent_streams.a $(LIBDIR)/$(CONFIG)/libend2end_test_no_op.a $(LIBDIR)/$(CONFIG)/libend2end_test_ping_pong_streaming.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_binary_metadata_and_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_metadata_and_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_large_metadata.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_delayed_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_thread_stress.a $(LIBDIR)/$(CONFIG)/libend2end_test_writes_done_hangs_with_pending_read.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept_and_writes_closed_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_invoke_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_before_invoke_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_in_a_vacuum_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_census_simple_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_disappearing_server_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_inflight_calls_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_tags_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_graceful_server_shutdown_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_invoke_large_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_max_concurrent_streams_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_no_op_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_ping_pong_streaming_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_binary_metadata_and_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_metadata_and_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_trailing_metadata_and_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_large_metadata_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_delayed_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_thread_stress_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_writes_done_hangs_with_pending_read_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a
+privatelibs_c:  $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fake_security.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fullstack_uds.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_simple_ssl_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_simple_ssl_with_oauth2_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_socket_pair.a $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_socket_pair_one_byte_at_a_time.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept_and_writes_closed.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_invoke.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_before_invoke.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_in_a_vacuum.a $(LIBDIR)/$(CONFIG)/libend2end_test_census_simple_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_disappearing_server.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_inflight_calls.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_tags.a $(LIBDIR)/$(CONFIG)/libend2end_test_empty_batch.a $(LIBDIR)/$(CONFIG)/libend2end_test_graceful_server_shutdown.a $(LIBDIR)/$(CONFIG)/libend2end_test_invoke_large_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_max_concurrent_streams.a $(LIBDIR)/$(CONFIG)/libend2end_test_no_op.a $(LIBDIR)/$(CONFIG)/libend2end_test_ping_pong_streaming.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_binary_metadata_and_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_metadata_and_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_large_metadata.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_payload.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_delayed_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_request.a $(LIBDIR)/$(CONFIG)/libend2end_test_thread_stress.a $(LIBDIR)/$(CONFIG)/libend2end_test_writes_done_hangs_with_pending_read.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_accept_and_writes_closed_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_after_invoke_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_before_invoke_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_cancel_in_a_vacuum_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_census_simple_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_disappearing_server_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_inflight_calls_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_early_server_shutdown_finishes_tags_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_graceful_server_shutdown_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_invoke_large_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_max_concurrent_streams_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_no_op_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_ping_pong_streaming_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_binary_metadata_and_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_metadata_and_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_response_with_trailing_metadata_and_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_large_metadata_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_request_with_payload_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_delayed_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_simple_request_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_thread_stress_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_test_writes_done_hangs_with_pending_read_legacy.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a
 
 privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a
 
 buildtests: buildtests_c buildtests_cxx
 
-buildtests_c: privatelibs_c $(BINDIR)/$(CONFIG)/alarm_heap_test $(BINDIR)/$(CONFIG)/alarm_list_test $(BINDIR)/$(CONFIG)/alarm_test $(BINDIR)/$(CONFIG)/alpn_test $(BINDIR)/$(CONFIG)/bin_encoder_test $(BINDIR)/$(CONFIG)/census_hash_table_test $(BINDIR)/$(CONFIG)/census_statistics_multiple_writers_circular_buffer_test $(BINDIR)/$(CONFIG)/census_statistics_multiple_writers_test $(BINDIR)/$(CONFIG)/census_statistics_performance_test $(BINDIR)/$(CONFIG)/census_statistics_quick_test $(BINDIR)/$(CONFIG)/census_statistics_small_log_test $(BINDIR)/$(CONFIG)/census_stub_test $(BINDIR)/$(CONFIG)/census_window_stats_test $(BINDIR)/$(CONFIG)/chttp2_status_conversion_test $(BINDIR)/$(CONFIG)/chttp2_stream_encoder_test $(BINDIR)/$(CONFIG)/chttp2_stream_map_test $(BINDIR)/$(CONFIG)/chttp2_transport_end2end_test $(BINDIR)/$(CONFIG)/dualstack_socket_test $(BINDIR)/$(CONFIG)/echo_client $(BINDIR)/$(CONFIG)/echo_server $(BINDIR)/$(CONFIG)/echo_test $(BINDIR)/$(CONFIG)/fd_posix_test $(BINDIR)/$(CONFIG)/fling_client $(BINDIR)/$(CONFIG)/fling_server $(BINDIR)/$(CONFIG)/fling_stream_test $(BINDIR)/$(CONFIG)/fling_test $(BINDIR)/$(CONFIG)/gpr_cancellable_test $(BINDIR)/$(CONFIG)/gpr_cmdline_test $(BINDIR)/$(CONFIG)/gpr_env_test $(BINDIR)/$(CONFIG)/gpr_file_test $(BINDIR)/$(CONFIG)/gpr_histogram_test $(BINDIR)/$(CONFIG)/gpr_host_port_test $(BINDIR)/$(CONFIG)/gpr_log_test $(BINDIR)/$(CONFIG)/gpr_slice_buffer_test $(BINDIR)/$(CONFIG)/gpr_slice_test $(BINDIR)/$(CONFIG)/gpr_string_test $(BINDIR)/$(CONFIG)/gpr_sync_test $(BINDIR)/$(CONFIG)/gpr_thd_test $(BINDIR)/$(CONFIG)/gpr_time_test $(BINDIR)/$(CONFIG)/gpr_useful_test $(BINDIR)/$(CONFIG)/grpc_base64_test $(BINDIR)/$(CONFIG)/grpc_byte_buffer_reader_test $(BINDIR)/$(CONFIG)/grpc_channel_stack_test $(BINDIR)/$(CONFIG)/grpc_completion_queue_test $(BINDIR)/$(CONFIG)/grpc_credentials_test $(BINDIR)/$(CONFIG)/grpc_json_token_test $(BINDIR)/$(CONFIG)/grpc_stream_op_test $(BINDIR)/$(CONFIG)/hpack_parser_test $(BINDIR)/$(CONFIG)/hpack_table_test $(BINDIR)/$(CONFIG)/httpcli_format_request_test $(BINDIR)/$(CONFIG)/httpcli_parser_test $(BINDIR)/$(CONFIG)/httpcli_test $(BINDIR)/$(CONFIG)/json_rewrite $(BINDIR)/$(CONFIG)/json_rewrite_test $(BINDIR)/$(CONFIG)/json_test $(BINDIR)/$(CONFIG)/lame_client_test $(BINDIR)/$(CONFIG)/message_compress_test $(BINDIR)/$(CONFIG)/metadata_buffer_test $(BINDIR)/$(CONFIG)/multi_init_test $(BINDIR)/$(CONFIG)/murmur_hash_test $(BINDIR)/$(CONFIG)/no_server_test $(BINDIR)/$(CONFIG)/poll_kick_posix_test $(BINDIR)/$(CONFIG)/resolve_address_test $(BINDIR)/$(CONFIG)/secure_endpoint_test $(BINDIR)/$(CONFIG)/sockaddr_utils_test $(BINDIR)/$(CONFIG)/tcp_client_posix_test $(BINDIR)/$(CONFIG)/tcp_posix_test $(BINDIR)/$(CONFIG)/tcp_server_posix_test $(BINDIR)/$(CONFIG)/time_averaged_stats_test $(BINDIR)/$(CONFIG)/time_test $(BINDIR)/$(CONFIG)/timeout_encoding_test $(BINDIR)/$(CONFIG)/transport_metadata_test $(BINDIR)/$(CONFIG)/transport_security_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_no_op_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_invoke_legacy_test 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$(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_trailing_metadata_and_payload_legacy_test 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$(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_no_op_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_writes_done_hangs_with_pending_read_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_no_op_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_writes_done_hangs_with_pending_read_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_no_op_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_writes_done_hangs_with_pending_read_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_no_op_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_writes_done_hangs_with_pending_read_legacy_test
 
 buildtests_cxx: privatelibs_cxx $(BINDIR)/$(CONFIG)/async_end2end_test $(BINDIR)/$(CONFIG)/channel_arguments_test $(BINDIR)/$(CONFIG)/credentials_test $(BINDIR)/$(CONFIG)/end2end_test $(BINDIR)/$(CONFIG)/interop_client $(BINDIR)/$(CONFIG)/interop_server $(BINDIR)/$(CONFIG)/interop_test $(BINDIR)/$(CONFIG)/pubsub_client $(BINDIR)/$(CONFIG)/pubsub_publisher_test $(BINDIR)/$(CONFIG)/pubsub_subscriber_test $(BINDIR)/$(CONFIG)/qps_client $(BINDIR)/$(CONFIG)/qps_client_async $(BINDIR)/$(CONFIG)/qps_server $(BINDIR)/$(CONFIG)/qps_server_async $(BINDIR)/$(CONFIG)/status_test $(BINDIR)/$(CONFIG)/thread_pool_test
 
@@ -1099,6 +1106,8 @@ test_c: buildtests_c
 	$(Q) $(BINDIR)/$(CONFIG)/transport_metadata_test || ( echo test transport_metadata_test failed ; exit 1 )
 	$(E) "[RUN]     Testing transport_security_test"
 	$(Q) $(BINDIR)/$(CONFIG)/transport_security_test || ( echo test transport_security_test failed ; exit 1 )
+	$(E) "[RUN]     Testing chttp2_fake_security_bad_hostname_test"
+	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fake_security_bad_hostname_test || ( echo test chttp2_fake_security_bad_hostname_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_fake_security_cancel_after_accept_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_test || ( echo test chttp2_fake_security_cancel_after_accept_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_fake_security_cancel_after_accept_and_writes_closed_test"
@@ -1195,6 +1204,8 @@ test_c: buildtests_c
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fake_security_thread_stress_legacy_test || ( echo test chttp2_fake_security_thread_stress_legacy_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_fake_security_writes_done_hangs_with_pending_read_legacy_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fake_security_writes_done_hangs_with_pending_read_legacy_test || ( echo test chttp2_fake_security_writes_done_hangs_with_pending_read_legacy_test failed ; exit 1 )
+	$(E) "[RUN]     Testing chttp2_fullstack_bad_hostname_test"
+	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fullstack_bad_hostname_test || ( echo test chttp2_fullstack_bad_hostname_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_fullstack_cancel_after_accept_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_accept_test || ( echo test chttp2_fullstack_cancel_after_accept_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_fullstack_cancel_after_accept_and_writes_closed_test"
@@ -1291,6 +1302,8 @@ test_c: buildtests_c
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fullstack_thread_stress_legacy_test || ( echo test chttp2_fullstack_thread_stress_legacy_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_fullstack_writes_done_hangs_with_pending_read_legacy_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fullstack_writes_done_hangs_with_pending_read_legacy_test || ( echo test chttp2_fullstack_writes_done_hangs_with_pending_read_legacy_test failed ; exit 1 )
+	$(E) "[RUN]     Testing chttp2_fullstack_uds_bad_hostname_test"
+	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_bad_hostname_test || ( echo test chttp2_fullstack_uds_bad_hostname_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_fullstack_uds_cancel_after_accept_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_after_accept_test || ( echo test chttp2_fullstack_uds_cancel_after_accept_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_fullstack_uds_cancel_after_accept_and_writes_closed_test"
@@ -1387,6 +1400,8 @@ test_c: buildtests_c
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_thread_stress_legacy_test || ( echo test chttp2_fullstack_uds_thread_stress_legacy_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_fullstack_uds_writes_done_hangs_with_pending_read_legacy_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_writes_done_hangs_with_pending_read_legacy_test || ( echo test chttp2_fullstack_uds_writes_done_hangs_with_pending_read_legacy_test failed ; exit 1 )
+	$(E) "[RUN]     Testing chttp2_simple_ssl_fullstack_bad_hostname_test"
+	$(Q) $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_bad_hostname_test || ( echo test chttp2_simple_ssl_fullstack_bad_hostname_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_simple_ssl_fullstack_cancel_after_accept_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_test || ( echo test chttp2_simple_ssl_fullstack_cancel_after_accept_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_simple_ssl_fullstack_cancel_after_accept_and_writes_closed_test"
@@ -1483,6 +1498,8 @@ test_c: buildtests_c
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_thread_stress_legacy_test || ( echo test chttp2_simple_ssl_fullstack_thread_stress_legacy_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_simple_ssl_fullstack_writes_done_hangs_with_pending_read_legacy_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_writes_done_hangs_with_pending_read_legacy_test || ( echo test chttp2_simple_ssl_fullstack_writes_done_hangs_with_pending_read_legacy_test failed ; exit 1 )
+	$(E) "[RUN]     Testing chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test"
+	$(Q) $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test || ( echo test chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_test || ( echo test chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_simple_ssl_with_oauth2_fullstack_cancel_after_accept_and_writes_closed_test"
@@ -1579,6 +1596,8 @@ test_c: buildtests_c
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_thread_stress_legacy_test || ( echo test chttp2_simple_ssl_with_oauth2_fullstack_thread_stress_legacy_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_simple_ssl_with_oauth2_fullstack_writes_done_hangs_with_pending_read_legacy_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_writes_done_hangs_with_pending_read_legacy_test || ( echo test chttp2_simple_ssl_with_oauth2_fullstack_writes_done_hangs_with_pending_read_legacy_test failed ; exit 1 )
+	$(E) "[RUN]     Testing chttp2_socket_pair_bad_hostname_test"
+	$(Q) $(BINDIR)/$(CONFIG)/chttp2_socket_pair_bad_hostname_test || ( echo test chttp2_socket_pair_bad_hostname_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_socket_pair_cancel_after_accept_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_test || ( echo test chttp2_socket_pair_cancel_after_accept_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_socket_pair_cancel_after_accept_and_writes_closed_test"
@@ -1675,6 +1694,8 @@ test_c: buildtests_c
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_socket_pair_thread_stress_legacy_test || ( echo test chttp2_socket_pair_thread_stress_legacy_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_socket_pair_writes_done_hangs_with_pending_read_legacy_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_socket_pair_writes_done_hangs_with_pending_read_legacy_test || ( echo test chttp2_socket_pair_writes_done_hangs_with_pending_read_legacy_test failed ; exit 1 )
+	$(E) "[RUN]     Testing chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test"
+	$(Q) $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test || ( echo test chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_test"
 	$(Q) $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_test || ( echo test chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_test failed ; exit 1 )
 	$(E) "[RUN]     Testing chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_and_writes_closed_test"
@@ -3889,6 +3910,31 @@ endif
 $(OBJDIR)/$(CONFIG)/test/core/end2end/fixtures/chttp2_socket_pair_one_byte_at_a_time.o: 
 
 
+LIBEND2END_TEST_BAD_HOSTNAME_SRC = \
+    test/core/end2end/tests/bad_hostname.c \
+
+
+LIBEND2END_TEST_BAD_HOSTNAME_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBEND2END_TEST_BAD_HOSTNAME_SRC))))
+
+$(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a: $(ZLIB_DEP) $(LIBEND2END_TEST_BAD_HOSTNAME_OBJS)
+	$(E) "[AR]      Creating $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a
+	$(Q) $(AR) rcs $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBEND2END_TEST_BAD_HOSTNAME_OBJS)
+ifeq ($(SYSTEM),Darwin)
+	$(Q) ranlib $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a
+endif
+
+
+
+
+ifneq ($(NO_DEPS),true)
+-include $(LIBEND2END_TEST_BAD_HOSTNAME_OBJS:.o=.dep)
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/end2end/tests/bad_hostname.o: 
+
+
 LIBEND2END_TEST_CANCEL_AFTER_ACCEPT_SRC = \
     test/core/end2end/tests/cancel_after_accept.c \
 
@@ -8444,6 +8490,35 @@ endif
 endif
 
 
+CHTTP2_FAKE_SECURITY_BAD_HOSTNAME_TEST_SRC = \
+
+CHTTP2_FAKE_SECURITY_BAD_HOSTNAME_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_FAKE_SECURITY_BAD_HOSTNAME_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/chttp2_fake_security_bad_hostname_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/chttp2_fake_security_bad_hostname_test: $(CHTTP2_FAKE_SECURITY_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fake_security.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(CHTTP2_FAKE_SECURITY_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fake_security.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/chttp2_fake_security_bad_hostname_test
+
+endif
+
+
+deps_chttp2_fake_security_bad_hostname_test: $(CHTTP2_FAKE_SECURITY_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(CHTTP2_FAKE_SECURITY_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 CHTTP2_FAKE_SECURITY_CANCEL_AFTER_ACCEPT_TEST_SRC = \
 
 CHTTP2_FAKE_SECURITY_CANCEL_AFTER_ACCEPT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_FAKE_SECURITY_CANCEL_AFTER_ACCEPT_TEST_SRC))))
@@ -9836,6 +9911,35 @@ endif
 endif
 
 
+CHTTP2_FULLSTACK_BAD_HOSTNAME_TEST_SRC = \
+
+CHTTP2_FULLSTACK_BAD_HOSTNAME_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_FULLSTACK_BAD_HOSTNAME_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/chttp2_fullstack_bad_hostname_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/chttp2_fullstack_bad_hostname_test: $(CHTTP2_FULLSTACK_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(CHTTP2_FULLSTACK_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/chttp2_fullstack_bad_hostname_test
+
+endif
+
+
+deps_chttp2_fullstack_bad_hostname_test: $(CHTTP2_FULLSTACK_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(CHTTP2_FULLSTACK_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 CHTTP2_FULLSTACK_CANCEL_AFTER_ACCEPT_TEST_SRC = \
 
 CHTTP2_FULLSTACK_CANCEL_AFTER_ACCEPT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_FULLSTACK_CANCEL_AFTER_ACCEPT_TEST_SRC))))
@@ -11228,6 +11332,35 @@ endif
 endif
 
 
+CHTTP2_FULLSTACK_UDS_BAD_HOSTNAME_TEST_SRC = \
+
+CHTTP2_FULLSTACK_UDS_BAD_HOSTNAME_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_FULLSTACK_UDS_BAD_HOSTNAME_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_bad_hostname_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_bad_hostname_test: $(CHTTP2_FULLSTACK_UDS_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fullstack_uds.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(CHTTP2_FULLSTACK_UDS_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_fullstack_uds.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_bad_hostname_test
+
+endif
+
+
+deps_chttp2_fullstack_uds_bad_hostname_test: $(CHTTP2_FULLSTACK_UDS_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(CHTTP2_FULLSTACK_UDS_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 CHTTP2_FULLSTACK_UDS_CANCEL_AFTER_ACCEPT_TEST_SRC = \
 
 CHTTP2_FULLSTACK_UDS_CANCEL_AFTER_ACCEPT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_FULLSTACK_UDS_CANCEL_AFTER_ACCEPT_TEST_SRC))))
@@ -12620,6 +12753,35 @@ endif
 endif
 
 
+CHTTP2_SIMPLE_SSL_FULLSTACK_BAD_HOSTNAME_TEST_SRC = \
+
+CHTTP2_SIMPLE_SSL_FULLSTACK_BAD_HOSTNAME_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_SIMPLE_SSL_FULLSTACK_BAD_HOSTNAME_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_bad_hostname_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_bad_hostname_test: $(CHTTP2_SIMPLE_SSL_FULLSTACK_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_simple_ssl_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(CHTTP2_SIMPLE_SSL_FULLSTACK_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_simple_ssl_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_bad_hostname_test
+
+endif
+
+
+deps_chttp2_simple_ssl_fullstack_bad_hostname_test: $(CHTTP2_SIMPLE_SSL_FULLSTACK_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(CHTTP2_SIMPLE_SSL_FULLSTACK_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 CHTTP2_SIMPLE_SSL_FULLSTACK_CANCEL_AFTER_ACCEPT_TEST_SRC = \
 
 CHTTP2_SIMPLE_SSL_FULLSTACK_CANCEL_AFTER_ACCEPT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_SIMPLE_SSL_FULLSTACK_CANCEL_AFTER_ACCEPT_TEST_SRC))))
@@ -14012,6 +14174,35 @@ endif
 endif
 
 
+CHTTP2_SIMPLE_SSL_WITH_OAUTH2_FULLSTACK_BAD_HOSTNAME_TEST_SRC = \
+
+CHTTP2_SIMPLE_SSL_WITH_OAUTH2_FULLSTACK_BAD_HOSTNAME_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_SIMPLE_SSL_WITH_OAUTH2_FULLSTACK_BAD_HOSTNAME_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test: $(CHTTP2_SIMPLE_SSL_WITH_OAUTH2_FULLSTACK_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_simple_ssl_with_oauth2_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(CHTTP2_SIMPLE_SSL_WITH_OAUTH2_FULLSTACK_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_simple_ssl_with_oauth2_fullstack.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test
+
+endif
+
+
+deps_chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test: $(CHTTP2_SIMPLE_SSL_WITH_OAUTH2_FULLSTACK_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(CHTTP2_SIMPLE_SSL_WITH_OAUTH2_FULLSTACK_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 CHTTP2_SIMPLE_SSL_WITH_OAUTH2_FULLSTACK_CANCEL_AFTER_ACCEPT_TEST_SRC = \
 
 CHTTP2_SIMPLE_SSL_WITH_OAUTH2_FULLSTACK_CANCEL_AFTER_ACCEPT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_SIMPLE_SSL_WITH_OAUTH2_FULLSTACK_CANCEL_AFTER_ACCEPT_TEST_SRC))))
@@ -15404,6 +15595,35 @@ endif
 endif
 
 
+CHTTP2_SOCKET_PAIR_BAD_HOSTNAME_TEST_SRC = \
+
+CHTTP2_SOCKET_PAIR_BAD_HOSTNAME_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_SOCKET_PAIR_BAD_HOSTNAME_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/chttp2_socket_pair_bad_hostname_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/chttp2_socket_pair_bad_hostname_test: $(CHTTP2_SOCKET_PAIR_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_socket_pair.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(CHTTP2_SOCKET_PAIR_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_socket_pair.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/chttp2_socket_pair_bad_hostname_test
+
+endif
+
+
+deps_chttp2_socket_pair_bad_hostname_test: $(CHTTP2_SOCKET_PAIR_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(CHTTP2_SOCKET_PAIR_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 CHTTP2_SOCKET_PAIR_CANCEL_AFTER_ACCEPT_TEST_SRC = \
 
 CHTTP2_SOCKET_PAIR_CANCEL_AFTER_ACCEPT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_SOCKET_PAIR_CANCEL_AFTER_ACCEPT_TEST_SRC))))
@@ -16796,6 +17016,35 @@ endif
 endif
 
 
+CHTTP2_SOCKET_PAIR_ONE_BYTE_AT_A_TIME_BAD_HOSTNAME_TEST_SRC = \
+
+CHTTP2_SOCKET_PAIR_ONE_BYTE_AT_A_TIME_BAD_HOSTNAME_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_SOCKET_PAIR_ONE_BYTE_AT_A_TIME_BAD_HOSTNAME_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test: $(CHTTP2_SOCKET_PAIR_ONE_BYTE_AT_A_TIME_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_socket_pair_one_byte_at_a_time.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(CHTTP2_SOCKET_PAIR_ONE_BYTE_AT_A_TIME_BAD_HOSTNAME_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_fixture_chttp2_socket_pair_one_byte_at_a_time.a $(LIBDIR)/$(CONFIG)/libend2end_test_bad_hostname.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test
+
+endif
+
+
+deps_chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test: $(CHTTP2_SOCKET_PAIR_ONE_BYTE_AT_A_TIME_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(CHTTP2_SOCKET_PAIR_ONE_BYTE_AT_A_TIME_BAD_HOSTNAME_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 CHTTP2_SOCKET_PAIR_ONE_BYTE_AT_A_TIME_CANCEL_AFTER_ACCEPT_TEST_SRC = \
 
 CHTTP2_SOCKET_PAIR_ONE_BYTE_AT_A_TIME_CANCEL_AFTER_ACCEPT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_SOCKET_PAIR_ONE_BYTE_AT_A_TIME_CANCEL_AFTER_ACCEPT_TEST_SRC))))
diff --git a/include/grpc++/impl/rpc_service_method.h b/include/grpc++/impl/rpc_service_method.h
index 325c8812caf..097667827a1 100644
--- a/include/grpc++/impl/rpc_service_method.h
+++ b/include/grpc++/impl/rpc_service_method.h
@@ -39,10 +39,10 @@
 #include <memory>
 #include <vector>
 
+#include <grpc++/config.h>
 #include <grpc++/impl/rpc_method.h>
 #include <grpc++/status.h>
 #include <grpc++/stream.h>
-#include <google/protobuf/message.h>
 
 namespace grpc {
 class ServerContext;
diff --git a/include/grpc++/server_context.h b/include/grpc++/server_context.h
index 9387f4a7e26..a986fff46bf 100644
--- a/include/grpc++/server_context.h
+++ b/include/grpc++/server_context.h
@@ -37,7 +37,7 @@
 #include <chrono>
 #include <map>
 
-#include "config.h"
+#include <grpc++/config.h>
 
 struct gpr_timespec;
 struct grpc_metadata;
diff --git a/src/core/security/auth.c b/src/core/security/auth.c
index 9b67d59cb8e..5fc6d2717f7 100644
--- a/src/core/security/auth.c
+++ b/src/core/security/auth.c
@@ -59,6 +59,7 @@ typedef struct {
   grpc_mdstr *authority_string;
   grpc_mdstr *path_string;
   grpc_mdstr *error_msg_key;
+  grpc_mdstr *status_key;
 } channel_data;
 
 static void do_nothing(void *ignored, grpc_op_error error) {}
@@ -66,17 +67,25 @@ static void do_nothing(void *ignored, grpc_op_error error) {}
 static void bubbleup_error(grpc_call_element *elem, const char *error_msg) {
   grpc_call_op finish_op;
   channel_data *channeld = elem->channel_data;
+  char status[GPR_LTOA_MIN_BUFSIZE];
 
   gpr_log(GPR_ERROR, "%s", error_msg);
   finish_op.type = GRPC_RECV_METADATA;
   finish_op.dir = GRPC_CALL_UP;
   finish_op.flags = 0;
   finish_op.data.metadata = grpc_mdelem_from_metadata_strings(
-      channeld->md_ctx, channeld->error_msg_key,
+      channeld->md_ctx, grpc_mdstr_ref(channeld->error_msg_key),
       grpc_mdstr_from_string(channeld->md_ctx, error_msg));
   finish_op.done_cb = do_nothing;
   finish_op.user_data = NULL;
   grpc_call_next_op(elem, &finish_op);
+
+  gpr_ltoa(GRPC_STATUS_UNAUTHENTICATED, status);
+  finish_op.data.metadata = grpc_mdelem_from_metadata_strings(
+      channeld->md_ctx, grpc_mdstr_ref(channeld->status_key),
+      grpc_mdstr_from_string(channeld->md_ctx, status));
+  grpc_call_next_op(elem, &finish_op);
+
   grpc_call_element_send_cancel(elem);
 }
 
@@ -151,6 +160,7 @@ static void on_host_checked(void *user_data, grpc_security_status status) {
                  grpc_mdstr_as_c_string(calld->host));
     bubbleup_error(elem, error_msg);
     gpr_free(error_msg);
+    calld->op.done_cb(calld->op.user_data, GRPC_OP_ERROR);
   }
 }
 
@@ -193,6 +203,7 @@ static void call_op(grpc_call_element *elem, grpc_call_element *from_elem,
                          call_host);
             bubbleup_error(elem, error_msg);
             gpr_free(error_msg);
+            op->done_cb(op->user_data, GRPC_OP_ERROR);
           }
           break;
         }
@@ -265,6 +276,7 @@ static void init_channel_elem(grpc_channel_element *elem,
   channeld->path_string = grpc_mdstr_from_string(channeld->md_ctx, ":path");
   channeld->error_msg_key =
       grpc_mdstr_from_string(channeld->md_ctx, "grpc-message");
+  channeld->status_key = grpc_mdstr_from_string(channeld->md_ctx, "grpc-status");
 }
 
 /* Destructor for channel data */
@@ -279,6 +291,9 @@ static void destroy_channel_elem(grpc_channel_element *elem) {
   if (channeld->error_msg_key != NULL) {
     grpc_mdstr_unref(channeld->error_msg_key);
   }
+  if (channeld->status_key != NULL) {
+    grpc_mdstr_unref(channeld->status_key);
+  }
   if (channeld->path_string != NULL) {
     grpc_mdstr_unref(channeld->path_string);
   }
diff --git a/src/cpp/client/channel.cc b/src/cpp/client/channel.cc
index 65bd135d5cb..5380d3a232c 100644
--- a/src/cpp/client/channel.cc
+++ b/src/cpp/client/channel.cc
@@ -50,7 +50,6 @@
 #include <grpc++/impl/call.h>
 #include <grpc++/impl/rpc_method.h>
 #include <grpc++/status.h>
-#include <google/protobuf/message.h>
 
 namespace grpc {
 
diff --git a/src/cpp/common/call.cc b/src/cpp/common/call.cc
index b2b6c627857..6ce1e8a7d58 100644
--- a/src/cpp/common/call.cc
+++ b/src/cpp/common/call.cc
@@ -31,7 +31,6 @@
  *
  */
 
-#include <google/protobuf/message.h>
 #include <grpc/support/alloc.h>
 #include <grpc++/impl/call.h>
 #include <grpc++/client_context.h>
diff --git a/src/cpp/proto/proto_utils.cc b/src/cpp/proto/proto_utils.cc
index e6badd5d6e7..72f1bf74417 100644
--- a/src/cpp/proto/proto_utils.cc
+++ b/src/cpp/proto/proto_utils.cc
@@ -36,7 +36,6 @@
 
 #include <grpc/grpc.h>
 #include <grpc/support/slice.h>
-#include <google/protobuf/message.h>
 
 namespace grpc {
 
diff --git a/src/cpp/server/async_server_context.cc b/src/cpp/server/async_server_context.cc
index bee75497b8c..f21efcfb19a 100644
--- a/src/cpp/server/async_server_context.cc
+++ b/src/cpp/server/async_server_context.cc
@@ -36,7 +36,7 @@
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
 #include "src/cpp/proto/proto_utils.h"
-#include <google/protobuf/message.h>
+#include <grpc++/config.h>
 #include <grpc++/status.h>
 
 namespace grpc {
diff --git a/src/csharp/.gitignore b/src/csharp/.gitignore
index d35ff63f6ef..4f4cd1f7d1a 100644
--- a/src/csharp/.gitignore
+++ b/src/csharp/.gitignore
@@ -2,3 +2,4 @@
 test-results
 packages
 Grpc.v12.suo
+TestResult.xml
diff --git a/src/csharp/Grpc.Core/Channel.cs b/src/csharp/Grpc.Core/Channel.cs
index 942651cf393..83d965debf1 100644
--- a/src/csharp/Grpc.Core/Channel.cs
+++ b/src/csharp/Grpc.Core/Channel.cs
@@ -1,5 +1,4 @@
 #region Copyright notice and license
-
 // Copyright 2015, Google Inc.
 // All rights reserved.
 //
@@ -28,9 +27,7 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
 #endregion
-
 using System;
 using System.Runtime.InteropServices;
 using System.Threading;
@@ -39,18 +36,32 @@ using Grpc.Core.Internal;
 
 namespace Grpc.Core
 {
-	public class Channel : IDisposable
-	{
+    public class Channel : IDisposable
+    {
         readonly ChannelSafeHandle handle;
         readonly String target;
 
-        // TODO: add way how to create grpc_secure_channel....
-		// TODO: add support for channel args...
-		public Channel(string target)
-		{
-            this.handle = ChannelSafeHandle.Create(target, IntPtr.Zero);
-			this.target = target;
-		}
+        /// <summary>
+        /// Creates a channel.
+        /// </summary>
+        public Channel(string target, Credentials credentials = null, ChannelArgs channelArgs = null)
+        {
+            using (ChannelArgsSafeHandle nativeChannelArgs = CreateNativeChannelArgs(channelArgs))
+            {
+                if (credentials != null)
+                {
+                    using (CredentialsSafeHandle nativeCredentials = credentials.ToNativeCredentials())
+                    {
+                        this.handle = ChannelSafeHandle.CreateSecure(nativeCredentials, target, nativeChannelArgs);
+                    }
+                }
+                else
+                {
+                    this.handle = ChannelSafeHandle.Create(target, nativeChannelArgs);
+                }
+            }
+            this.target = GetOverridenTarget(target, channelArgs);
+        }
 
         internal ChannelSafeHandle Handle
         {
@@ -81,5 +92,23 @@ namespace Grpc.Core
                 handle.Dispose();
             }
         }
-	}
+
+        private static string GetOverridenTarget(string target, ChannelArgs args)
+        {
+            if (args != null && !string.IsNullOrEmpty(args.GetSslTargetNameOverride()))
+            {
+                return args.GetSslTargetNameOverride();
+            }
+            return target;
+        }
+
+        private static ChannelArgsSafeHandle CreateNativeChannelArgs(ChannelArgs args)
+        {
+            if (args == null)
+            {
+                return ChannelArgsSafeHandle.CreateNull();
+            }
+            return args.ToNativeChannelArgs();
+        }
+    }
 }
diff --git a/src/csharp/Grpc.Core/ChannelArgs.cs b/src/csharp/Grpc.Core/ChannelArgs.cs
new file mode 100644
index 00000000000..653a5780a33
--- /dev/null
+++ b/src/csharp/Grpc.Core/ChannelArgs.cs
@@ -0,0 +1,112 @@
+#region Copyright notice and license
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#endregion
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using System.Threading;
+using System.Threading.Tasks;
+using Grpc.Core.Internal;
+
+namespace Grpc.Core
+{
+    // TODO: should we be using the builder pattern?
+    public class ChannelArgs
+    {
+        public const string SslTargetNameOverrideKey = "grpc.ssl_target_name_override";
+
+        public class Builder
+        {
+            Dictionary<string,string> stringArgs = new Dictionary<string,string>();
+            // TODO: AddInteger not supported yet.
+            public Builder AddString(string key, string value)
+            {
+                stringArgs.Add(key, value);
+                return this;
+            }
+
+            public ChannelArgs Build()
+            {
+                return new ChannelArgs(stringArgs);
+            }
+        }
+
+        Dictionary<string,string> stringArgs;
+
+        private ChannelArgs(Dictionary<string, string> stringArgs)
+        {
+            // TODO: use immutable dict?
+            this.stringArgs = new Dictionary<string, string>(stringArgs);
+        }
+
+        public string GetSslTargetNameOverride()
+        {
+            string result;
+            if (stringArgs.TryGetValue(SslTargetNameOverrideKey, out result))
+            {
+                return result;
+            }
+            return null;
+        }
+
+        public static Builder NewBuilder()
+        {
+            return new Builder();
+        }
+
+        /// <summary>
+        /// Creates native object for the channel arguments.
+        /// </summary>
+        /// <returns>The native channel arguments.</returns>
+        internal ChannelArgsSafeHandle ToNativeChannelArgs()
+        {
+            ChannelArgsSafeHandle nativeArgs = null;
+            try
+            {
+                nativeArgs = ChannelArgsSafeHandle.Create(stringArgs.Count);
+                int i = 0;
+                foreach (var entry in stringArgs)
+                {
+                    nativeArgs.SetString(i, entry.Key, entry.Value);
+                    i++;
+                }
+                return nativeArgs;
+            }
+            catch (Exception e)
+            {
+                if (nativeArgs != null)
+                {
+                    nativeArgs.Dispose();
+                }
+                throw;
+            }
+        }
+    }
+}
diff --git a/src/csharp/Grpc.Core/Credentials.cs b/src/csharp/Grpc.Core/Credentials.cs
new file mode 100644
index 00000000000..5116c277f72
--- /dev/null
+++ b/src/csharp/Grpc.Core/Credentials.cs
@@ -0,0 +1,77 @@
+#region Copyright notice and license
+
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#endregion
+
+using System;
+using Grpc.Core.Internal;
+
+namespace Grpc.Core
+{
+    public abstract class Credentials
+    {
+        /// <summary>
+        /// Creates native object for the credentials.
+        /// </summary>
+        /// <returns>The native credentials.</returns>
+        internal abstract CredentialsSafeHandle ToNativeCredentials();
+    }
+
+    /// <summary>
+    /// Client-side SSL credentials.
+    /// </summary>
+    public class SslCredentials : Credentials
+    {
+        string pemRootCerts;
+
+        public SslCredentials(string pemRootCerts)
+        {
+            this.pemRootCerts = pemRootCerts;
+        }
+
+        /// <summary>
+        /// PEM encoding of the server root certificates.
+        /// </summary>
+        public string RootCerts
+        {
+            get
+            {
+                return this.pemRootCerts;
+            }
+        }
+
+        internal override CredentialsSafeHandle ToNativeCredentials()
+        {
+            return CredentialsSafeHandle.CreateSslCredentials(pemRootCerts);
+        }
+    }
+}
+
diff --git a/src/csharp/Grpc.Core/Grpc.Core.csproj b/src/csharp/Grpc.Core/Grpc.Core.csproj
index 05d40d45a6e..93d5430591b 100644
--- a/src/csharp/Grpc.Core/Grpc.Core.csproj
+++ b/src/csharp/Grpc.Core/Grpc.Core.csproj
@@ -65,6 +65,10 @@
     <Compile Include="Internal\BatchContextSafeHandleNotOwned.cs" />
     <Compile Include="Utils\BenchmarkUtil.cs" />
     <Compile Include="Utils\ExceptionHelper.cs" />
+    <Compile Include="Internal\CredentialsSafeHandle.cs" />
+    <Compile Include="Credentials.cs" />
+    <Compile Include="Internal\ChannelArgsSafeHandle.cs" />
+    <Compile Include="ChannelArgs.cs" />
   </ItemGroup>
   <Choose>
     <!-- Under older versions of Monodevelop, Choose is not supported and is just
diff --git a/src/csharp/Grpc.Core/Internal/ChannelArgsSafeHandle.cs b/src/csharp/Grpc.Core/Internal/ChannelArgsSafeHandle.cs
new file mode 100644
index 00000000000..ca3c21d84ce
--- /dev/null
+++ b/src/csharp/Grpc.Core/Internal/ChannelArgsSafeHandle.cs
@@ -0,0 +1,77 @@
+#region Copyright notice and license
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#endregion
+using System;
+using System.Runtime.InteropServices;
+using System.Threading.Tasks;
+
+namespace Grpc.Core.Internal
+{
+    /// <summary>
+    /// grpc_channel_args from <grpc/grpc.h>
+    /// </summary>
+    internal class ChannelArgsSafeHandle : SafeHandleZeroIsInvalid
+    {
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern ChannelArgsSafeHandle grpcsharp_channel_args_create(UIntPtr numArgs);
+
+        [DllImport("grpc_csharp_ext.dll", CharSet = CharSet.Ansi)]
+        static extern void grpcsharp_channel_args_set_string(ChannelArgsSafeHandle args, UIntPtr index, string key, string value);
+
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern void grpcsharp_channel_args_destroy(IntPtr args);
+
+        private ChannelArgsSafeHandle()
+        {
+        }
+
+        public static ChannelArgsSafeHandle CreateNull()
+        {
+            return new ChannelArgsSafeHandle();
+        }
+
+        public static ChannelArgsSafeHandle Create(int size)
+        {
+            return grpcsharp_channel_args_create(new UIntPtr((uint)size));
+        }
+
+        public void SetString(int index, string key, string value)
+        {
+            grpcsharp_channel_args_set_string(this, new UIntPtr((uint)index), key, value);
+        }
+
+        protected override bool ReleaseHandle()
+        {
+            grpcsharp_channel_args_destroy(handle);
+            return true;
+        }
+    }
+}
+
diff --git a/src/csharp/Grpc.Core/Internal/ChannelSafeHandle.cs b/src/csharp/Grpc.Core/Internal/ChannelSafeHandle.cs
index f15ead35724..f046f4c6d0d 100644
--- a/src/csharp/Grpc.Core/Internal/ChannelSafeHandle.cs
+++ b/src/csharp/Grpc.Core/Internal/ChannelSafeHandle.cs
@@ -1,5 +1,4 @@
 #region Copyright notice and license
-
 // Copyright 2015, Google Inc.
 // All rights reserved.
 //
@@ -28,9 +27,7 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
 #endregion
-
 using System;
 using System.Runtime.InteropServices;
 using System.Threading;
@@ -41,27 +38,35 @@ namespace Grpc.Core.Internal
     /// <summary>
     /// grpc_channel from <grpc/grpc.h>
     /// </summary>
-	internal class ChannelSafeHandle : SafeHandleZeroIsInvalid
-	{
+    internal class ChannelSafeHandle : SafeHandleZeroIsInvalid
+    {
         [DllImport("grpc_csharp_ext.dll")]
-        static extern ChannelSafeHandle grpcsharp_channel_create(string target, IntPtr channelArgs);
+        static extern ChannelSafeHandle grpcsharp_channel_create(string target, ChannelArgsSafeHandle channelArgs);
 
-		[DllImport("grpc_csharp_ext.dll")]
-		static extern void grpcsharp_channel_destroy(IntPtr channel);
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern ChannelSafeHandle grpcsharp_secure_channel_create(CredentialsSafeHandle credentials, string target, ChannelArgsSafeHandle channelArgs);
+
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern void grpcsharp_channel_destroy(IntPtr channel);
 
         private ChannelSafeHandle()
         {
         }
 
-        public static ChannelSafeHandle Create(string target, IntPtr channelArgs)
+        public static ChannelSafeHandle Create(string target, ChannelArgsSafeHandle channelArgs)
         {
             return grpcsharp_channel_create(target, channelArgs);
         }
 
-		protected override bool ReleaseHandle()
-		{
-			grpcsharp_channel_destroy(handle);
-			return true;
-		}
-	}
+        public static ChannelSafeHandle CreateSecure(CredentialsSafeHandle credentials, string target, ChannelArgsSafeHandle channelArgs)
+        {
+            return grpcsharp_secure_channel_create(credentials, target, channelArgs);
+        }
+
+        protected override bool ReleaseHandle()
+        {
+            grpcsharp_channel_destroy(handle);
+            return true;
+        }
+    }
 }
diff --git a/src/csharp/Grpc.Core/Internal/CredentialsSafeHandle.cs b/src/csharp/Grpc.Core/Internal/CredentialsSafeHandle.cs
new file mode 100644
index 00000000000..f361199068e
--- /dev/null
+++ b/src/csharp/Grpc.Core/Internal/CredentialsSafeHandle.cs
@@ -0,0 +1,64 @@
+#region Copyright notice and license
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#endregion
+using System;
+using System.Runtime.InteropServices;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Grpc.Core.Internal
+{
+    /// <summary>
+    /// grpc_credentials from <grpc/grpc_security.h>
+    /// </summary>
+    internal class CredentialsSafeHandle : SafeHandleZeroIsInvalid
+    {
+        [DllImport("grpc_csharp_ext.dll", CharSet = CharSet.Ansi)]
+        static extern CredentialsSafeHandle grpcsharp_ssl_credentials_create(string pemRootCerts, string keyCertPairCertChain, string keyCertPairPrivateKey);
+
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern void grpcsharp_credentials_release(IntPtr credentials);
+
+        private CredentialsSafeHandle()
+        {
+        }
+
+        public static CredentialsSafeHandle CreateSslCredentials(string pemRootCerts)
+        {
+            return grpcsharp_ssl_credentials_create(pemRootCerts, null, null);
+        }
+
+        protected override bool ReleaseHandle()
+        {
+            grpcsharp_credentials_release(handle);
+            return true;
+        }
+    }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
index 6d6aaf57473..8f7a17efcb1 100644
--- a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
+++ b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
@@ -62,8 +62,21 @@
     <None Include="proto\test.proto" />
     <None Include="proto\empty.proto" />
     <None Include="proto\messages.proto" />
+    <None Include="data\README">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Include="data\ca.pem">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Include="data\server1.key">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Include="data\server1.pem">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
   <ItemGroup>
     <Folder Include="proto\" />
+    <Folder Include="data\" />
   </ItemGroup>
 </Project>
diff --git a/src/csharp/Grpc.IntegrationTesting/InteropClient.cs b/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
index a7a3c63e032..30301f165ba 100644
--- a/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
+++ b/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
@@ -34,6 +34,7 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.IO;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using Google.ProtocolBuffers;
@@ -49,10 +50,10 @@ namespace Grpc.IntegrationTesting
         private class ClientOptions
         {
             public bool help;
-            public string serverHost;
-            public string serverHostOverride;
+            public string serverHost= "127.0.0.1";
+            public string serverHostOverride = "foo.test.google.fr";
             public int? serverPort;
-            public string testCase;
+            public string testCase = "large_unary";
             public bool useTls;
             public bool useTestCa;
         }
@@ -98,10 +99,32 @@ namespace Grpc.IntegrationTesting
             GrpcEnvironment.Initialize();
 
             string addr = string.Format("{0}:{1}", options.serverHost, options.serverPort);
-            using (Channel channel = new Channel(addr))
+
+            Credentials credentials = null;
+            if (options.useTls)
             {
-                TestServiceGrpc.ITestServiceClient client = new TestServiceGrpc.TestServiceClientStub(channel);
+                string caPath = "data/ca.pem";  // Default testing CA
+                if (!options.useTestCa)
+                {
+                    caPath = Environment.GetEnvironmentVariable("SSL_CERT_FILE");
+                    if (string.IsNullOrEmpty(caPath))
+                    {
+                        throw new ArgumentException("CA path environment variable is not set.");
+                    }
+                }
+                credentials = new SslCredentials(File.ReadAllText(caPath));
+            }
 
+            ChannelArgs channelArgs = null;
+            if (!string.IsNullOrEmpty(options.serverHostOverride))
+            {
+                channelArgs = ChannelArgs.NewBuilder()
+                    .AddString(ChannelArgs.SslTargetNameOverrideKey, options.serverHostOverride).Build();
+            }
+
+            using (Channel channel = new Channel(addr, credentials, channelArgs))
+            {
+                TestServiceGrpc.ITestServiceClient client = new TestServiceGrpc.TestServiceClientStub(channel);
                 RunTestCase(options.testCase, client);
             }
 
diff --git a/src/csharp/Grpc.IntegrationTesting/data/README b/src/csharp/Grpc.IntegrationTesting/data/README
new file mode 100644
index 00000000000..888d95b9004
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting/data/README
@@ -0,0 +1 @@
+CONFIRMEDTESTKEY
diff --git a/src/csharp/Grpc.IntegrationTesting/data/ca.pem b/src/csharp/Grpc.IntegrationTesting/data/ca.pem
new file mode 100644
index 00000000000..6c8511a73c6
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting/data/ca.pem
@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----
+MIICSjCCAbOgAwIBAgIJAJHGGR4dGioHMA0GCSqGSIb3DQEBCwUAMFYxCzAJBgNV
+BAYTAkFVMRMwEQYDVQQIEwpTb21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBX
+aWRnaXRzIFB0eSBMdGQxDzANBgNVBAMTBnRlc3RjYTAeFw0xNDExMTEyMjMxMjla
+Fw0yNDExMDgyMjMxMjlaMFYxCzAJBgNVBAYTAkFVMRMwEQYDVQQIEwpTb21lLVN0
+YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQxDzANBgNVBAMT
+BnRlc3RjYTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAwEDfBV5MYdlHVHJ7
++L4nxrZy7mBfAVXpOc5vMYztssUI7mL2/iYujiIXM+weZYNTEpLdjyJdu7R5gGUu
+g1jSVK/EPHfc74O7AyZU34PNIP4Sh33N+/A5YexrNgJlPY+E3GdVYi4ldWJjgkAd
+Qah2PH5ACLrIIC6tRka9hcaBlIECAwEAAaMgMB4wDAYDVR0TBAUwAwEB/zAOBgNV
+HQ8BAf8EBAMCAgQwDQYJKoZIhvcNAQELBQADgYEAHzC7jdYlzAVmddi/gdAeKPau
+sPBG/C2HCWqHzpCUHcKuvMzDVkY/MP2o6JIW2DBbY64bO/FceExhjcykgaYtCH/m
+oIU63+CFOTtR7otyQAWHqXa7q4SbCDlG7DyRFxqG0txPtGvy12lgldA2+RgcigQG
+Dfcog5wrJytaQ6UA0wE=
+-----END CERTIFICATE-----
diff --git a/src/csharp/Grpc.IntegrationTesting/data/server1.key b/src/csharp/Grpc.IntegrationTesting/data/server1.key
new file mode 100644
index 00000000000..143a5b87658
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting/data/server1.key
@@ -0,0 +1,16 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----
diff --git a/src/csharp/Grpc.IntegrationTesting/data/server1.pem b/src/csharp/Grpc.IntegrationTesting/data/server1.pem
new file mode 100644
index 00000000000..8e582e571f6
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting/data/server1.pem
@@ -0,0 +1,16 @@
+-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----
diff --git a/src/csharp/ext/grpc_csharp_ext.c b/src/csharp/ext/grpc_csharp_ext.c
index 8f5a4141872..e24438704cf 100644
--- a/src/csharp/ext/grpc_csharp_ext.c
+++ b/src/csharp/ext/grpc_csharp_ext.c
@@ -39,6 +39,7 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/thd.h>
 #include <grpc/grpc.h>
+#include <grpc/grpc_security.h>
 
 #include <string.h>
 
@@ -266,6 +267,45 @@ grpcsharp_channel_create_call(grpc_channel *channel, grpc_completion_queue *cq,
   return grpc_channel_create_call(channel, cq, method, host, deadline);
 }
 
+/* Channel args */
+
+GPR_EXPORT grpc_channel_args *GPR_CALLTYPE
+grpcsharp_channel_args_create(size_t num_args) {
+  grpc_channel_args *args =
+      (grpc_channel_args *)gpr_malloc(sizeof(grpc_channel_args));
+  memset(args, 0, sizeof(grpc_channel_args));
+
+  args->num_args = num_args;
+  args->args = (grpc_arg *)gpr_malloc(sizeof(grpc_arg) * num_args);
+  memset(args->args, 0, sizeof(grpc_arg) * num_args);
+  return args;
+}
+
+GPR_EXPORT void GPR_CALLTYPE
+grpcsharp_channel_args_set_string(grpc_channel_args *args, size_t index,
+                                  const char *key, const char *value) {
+  GPR_ASSERT(args);
+  GPR_ASSERT(index < args->num_args);
+  args->args[index].type = GRPC_ARG_STRING;
+  args->args[index].key = gpr_strdup(key);
+  args->args[index].value.string = gpr_strdup(value);
+}
+
+GPR_EXPORT void GPR_CALLTYPE
+grpcsharp_channel_args_destroy(grpc_channel_args *args) {
+  size_t i;
+  if (args) {
+    for (i = 0; i < args->num_args; i++) {
+      gpr_free(args->args[i].key);
+      if (args->args[i].type == GRPC_ARG_STRING) {
+        gpr_free(args->args[i].value.string);
+      }
+    }
+    gpr_free(args->args);
+    gpr_free(args);
+  }
+}
+
 /* Timespec */
 
 GPR_EXPORT gpr_timespec GPR_CALLTYPE gprsharp_now(void) { return gpr_now(); }
@@ -585,6 +625,34 @@ grpcsharp_server_request_call(grpc_server *server, grpc_completion_queue *cq,
       &(ctx->server_rpc_new.request_metadata), cq, ctx);
 }
 
+/* Security */
+
+GPR_EXPORT grpc_credentials *GPR_CALLTYPE
+grpcsharp_ssl_credentials_create(const char *pem_root_certs,
+                                 const char *key_cert_pair_cert_chain,
+                                 const char *key_cert_pair_private_key) {
+  grpc_ssl_pem_key_cert_pair key_cert_pair;
+  if (key_cert_pair_cert_chain || key_cert_pair_private_key) {
+    key_cert_pair.cert_chain = key_cert_pair_cert_chain;
+    key_cert_pair.private_key = key_cert_pair_private_key;
+    return grpc_ssl_credentials_create(pem_root_certs, &key_cert_pair);
+  } else {
+    GPR_ASSERT(!key_cert_pair_cert_chain);
+    GPR_ASSERT(!key_cert_pair_private_key);
+    return grpc_ssl_credentials_create(pem_root_certs, NULL);
+  }
+}
+
+GPR_EXPORT void grpcsharp_credentials_release(grpc_credentials *creds) {
+  grpc_credentials_release(creds);
+}
+
+GPR_EXPORT grpc_channel *GPR_CALLTYPE
+grpcsharp_secure_channel_create(grpc_credentials *creds, const char *target,
+                                const grpc_channel_args *args) {
+  return grpc_secure_channel_create(creds, target, args);
+}
+
 /* Logging */
 
 typedef void(GPR_CALLTYPE *grpcsharp_log_func)(const char *file, gpr_int32 line,
diff --git a/test/core/end2end/end2end_tests.h b/test/core/end2end/end2end_tests.h
index b6d93252eb2..41c6e2ee0c6 100644
--- a/test/core/end2end/end2end_tests.h
+++ b/test/core/end2end/end2end_tests.h
@@ -40,6 +40,7 @@ typedef struct grpc_end2end_test_fixture grpc_end2end_test_fixture;
 typedef struct grpc_end2end_test_config grpc_end2end_test_config;
 
 #define FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION 1
+#define FEATURE_MASK_SUPPORTS_HOSTNAME_VERIFICATION 2
 
 struct grpc_end2end_test_fixture {
   grpc_completion_queue *server_cq;
diff --git a/test/core/end2end/fixtures/chttp2_simple_ssl_fullstack.c b/test/core/end2end/fixtures/chttp2_simple_ssl_fullstack.c
index 9f23fa3e953..16433f5f87c 100644
--- a/test/core/end2end/fixtures/chttp2_simple_ssl_fullstack.c
+++ b/test/core/end2end/fixtures/chttp2_simple_ssl_fullstack.c
@@ -123,7 +123,9 @@ static void chttp2_init_server_simple_ssl_secure_fullstack(
 /* All test configurations */
 
 static grpc_end2end_test_config configs[] = {
-    {"chttp2/simple_ssl_fullstack", FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION,
+    {"chttp2/simple_ssl_fullstack",
+     FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION |
+         FEATURE_MASK_SUPPORTS_HOSTNAME_VERIFICATION,
      chttp2_create_fixture_secure_fullstack,
      chttp2_init_client_simple_ssl_secure_fullstack,
      chttp2_init_server_simple_ssl_secure_fullstack,
diff --git a/test/core/end2end/fixtures/chttp2_simple_ssl_with_oauth2_fullstack.c b/test/core/end2end/fixtures/chttp2_simple_ssl_with_oauth2_fullstack.c
index c720a96336d..99031df8e54 100644
--- a/test/core/end2end/fixtures/chttp2_simple_ssl_with_oauth2_fullstack.c
+++ b/test/core/end2end/fixtures/chttp2_simple_ssl_with_oauth2_fullstack.c
@@ -129,7 +129,8 @@ static void chttp2_init_server_simple_ssl_secure_fullstack(
 
 static grpc_end2end_test_config configs[] = {
     {"chttp2/simple_ssl_with_oauth2_fullstack",
-     FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION,
+     FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION |
+         FEATURE_MASK_SUPPORTS_HOSTNAME_VERIFICATION,
      chttp2_create_fixture_secure_fullstack,
      chttp2_init_client_simple_ssl_with_oauth2_secure_fullstack,
      chttp2_init_server_simple_ssl_secure_fullstack,
diff --git a/test/core/end2end/gen_build_json.py b/test/core/end2end/gen_build_json.py
index 4e297b30bec..96d85557992 100755
--- a/test/core/end2end/gen_build_json.py
+++ b/test/core/end2end/gen_build_json.py
@@ -46,6 +46,7 @@ END2END_FIXTURES = [
 
 
 END2END_TESTS = [
+    'bad_hostname',
     'cancel_after_accept',
     'cancel_after_accept_and_writes_closed',
     'cancel_after_invoke',
diff --git a/test/core/end2end/tests/bad_hostname.c b/test/core/end2end/tests/bad_hostname.c
new file mode 100644
index 00000000000..80922f3b6f9
--- /dev/null
+++ b/test/core/end2end/tests/bad_hostname.c
@@ -0,0 +1,176 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "test/core/end2end/end2end_tests.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "src/core/support/string.h"
+#include <grpc/byte_buffer.h>
+#include <grpc/grpc.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/time.h>
+#include <grpc/support/useful.h>
+#include "test/core/end2end/cq_verifier.h"
+
+enum { TIMEOUT = 200000 };
+
+static void *tag(gpr_intptr t) { return (void *)t; }
+
+static grpc_end2end_test_fixture begin_test(grpc_end2end_test_config config,
+                                            const char *test_name,
+                                            grpc_channel_args *client_args,
+                                            grpc_channel_args *server_args) {
+  grpc_end2end_test_fixture f;
+  gpr_log(GPR_INFO, "%s/%s", test_name, config.name);
+  f = config.create_fixture(client_args, server_args);
+  config.init_client(&f, client_args);
+  config.init_server(&f, server_args);
+  return f;
+}
+
+static gpr_timespec n_seconds_time(int n) {
+  return GRPC_TIMEOUT_SECONDS_TO_DEADLINE(n);
+}
+
+static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+
+static void drain_cq(grpc_completion_queue *cq) {
+  grpc_event *ev;
+  grpc_completion_type type;
+  do {
+    ev = grpc_completion_queue_next(cq, five_seconds_time());
+    GPR_ASSERT(ev);
+    type = ev->type;
+    grpc_event_finish(ev);
+  } while (type != GRPC_QUEUE_SHUTDOWN);
+}
+
+static void shutdown_server(grpc_end2end_test_fixture *f) {
+  if (!f->server) return;
+  grpc_server_shutdown(f->server);
+  grpc_server_destroy(f->server);
+  f->server = NULL;
+}
+
+static void shutdown_client(grpc_end2end_test_fixture *f) {
+  if (!f->client) return;
+  grpc_channel_destroy(f->client);
+  f->client = NULL;
+}
+
+static void end_test(grpc_end2end_test_fixture *f) {
+  shutdown_server(f);
+  shutdown_client(f);
+
+  grpc_completion_queue_shutdown(f->server_cq);
+  drain_cq(f->server_cq);
+  grpc_completion_queue_destroy(f->server_cq);
+  grpc_completion_queue_shutdown(f->client_cq);
+  drain_cq(f->client_cq);
+  grpc_completion_queue_destroy(f->client_cq);
+}
+
+static void simple_request_body(grpc_end2end_test_fixture f) {
+  grpc_call *c;
+  gpr_timespec deadline = five_seconds_time();
+  cq_verifier *v_client = cq_verifier_create(f.client_cq);
+  grpc_op ops[6];
+  grpc_op *op;
+  grpc_metadata_array initial_metadata_recv;
+  grpc_metadata_array trailing_metadata_recv;
+  grpc_metadata_array request_metadata_recv;
+  grpc_call_details call_details;
+  grpc_status_code status;
+  char *details = NULL;
+  size_t details_capacity = 0;
+
+  c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
+                               "slartibartfast.local", deadline);
+  GPR_ASSERT(c);
+
+  grpc_metadata_array_init(&initial_metadata_recv);
+  grpc_metadata_array_init(&trailing_metadata_recv);
+  grpc_metadata_array_init(&request_metadata_recv);
+  grpc_call_details_init(&call_details);
+
+  op = ops;
+  op->op = GRPC_OP_SEND_INITIAL_METADATA;
+  op->data.send_initial_metadata.count = 0;
+  op++;
+  op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
+  op++;
+  op->op = GRPC_OP_RECV_INITIAL_METADATA;
+  op->data.recv_initial_metadata = &initial_metadata_recv;
+  op++;
+  op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
+  op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
+  op->data.recv_status_on_client.status = &status;
+  op->data.recv_status_on_client.status_details = &details;
+  op->data.recv_status_on_client.status_details_capacity = &details_capacity;
+  op++;
+  GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(c, ops, op - ops, tag(1)));
+
+  cq_expect_completion(v_client, tag(1), GRPC_OP_OK);
+  cq_verify(v_client);
+
+  GPR_ASSERT(status == GRPC_STATUS_UNAUTHENTICATED);
+
+  gpr_free(details);
+  grpc_metadata_array_destroy(&initial_metadata_recv);
+  grpc_metadata_array_destroy(&trailing_metadata_recv);
+  grpc_metadata_array_destroy(&request_metadata_recv);
+  grpc_call_details_destroy(&call_details);
+
+  grpc_call_destroy(c);
+
+  cq_verifier_destroy(v_client);
+}
+
+static void test_invoke_simple_request(grpc_end2end_test_config config) {
+  grpc_end2end_test_fixture f;
+
+  f = begin_test(config, __FUNCTION__, NULL, NULL);
+  simple_request_body(f);
+  end_test(&f);
+  config.tear_down_data(&f);
+}
+
+void grpc_end2end_tests(grpc_end2end_test_config config) {
+  if (config.feature_mask & FEATURE_MASK_SUPPORTS_HOSTNAME_VERIFICATION) {
+    test_invoke_simple_request(config);
+  }
+}
diff --git a/tools/gce_setup/build_images.sh b/tools/gce_setup/build_images.sh
index ea58a98608c..0b1c32b7d6d 100755
--- a/tools/gce_setup/build_images.sh
+++ b/tools/gce_setup/build_images.sh
@@ -35,7 +35,7 @@ main() {
   cd ../../
 
   # build images for all languages
-  languages=(cxx java go ruby node python)
+  languages=(cxx java go ruby node python csharp_mono)
   for lan in "${languages[@]}"
   do
     grpc_update_image $lan
diff --git a/tools/gce_setup/builder.sh b/tools/gce_setup/builder.sh
index d4dbd75426c..8815d082da7 100755
--- a/tools/gce_setup/builder.sh
+++ b/tools/gce_setup/builder.sh
@@ -37,7 +37,7 @@ main() {
   sleep 3600
 
   # build images for all languages
-  languages=(cxx java go ruby node)
+  languages=(cxx java go ruby node python csharp_mono)
   for lan in "${languages[@]}"
   do
     grpc_update_image $lan
diff --git a/tools/gce_setup/grpc_docker.sh b/tools/gce_setup/grpc_docker.sh
index 02039261a35..619eff56d62 100755
--- a/tools/gce_setup/grpc_docker.sh
+++ b/tools/gce_setup/grpc_docker.sh
@@ -383,7 +383,7 @@ grpc_interop_test_args() {
 
   [[ -n $1 ]] && {  # client_type
     case $1 in
-      cxx|go|java|node|php|python|ruby)
+      cxx|go|java|node|php|python|ruby|csharp_mono)
         grpc_gen_test_cmd="grpc_interop_gen_$1_cmd"
         declare -F $grpc_gen_test_cmd >> /dev/null || {
           echo "-f: test_func for $1 => $grpc_gen_test_cmd is not defined" 1>&2
@@ -411,12 +411,13 @@ grpc_interop_test_args() {
 
   [[ -n $1 ]] && {  # server_type
     case $1 in
-      cxx)    grpc_port=8010 ;;
-      go)     grpc_port=8020 ;;
-      java)   grpc_port=8030 ;;
-      node)   grpc_port=8040 ;;
-      python) grpc_port=8050 ;;
-      ruby)   grpc_port=8060 ;;
+      cxx)          grpc_port=8010 ;;
+      go)           grpc_port=8020 ;;
+      java)         grpc_port=8030 ;;
+      node)         grpc_port=8040 ;;
+      python)       grpc_port=8050 ;;
+      ruby)         grpc_port=8060 ;;
+      csharp_mono)  grpc_port=8070 ;;
       *) echo "bad server_type: $1" 1>&2; return 1 ;;
     esac
     shift
@@ -454,7 +455,7 @@ grpc_cloud_prod_test_args() {
 
   [[ -n $1 ]] && {  # client_type
     case $1 in
-      cxx|go|java|node|php|python|ruby)
+      cxx|go|java|node|php|python|ruby|csharp_mono)
         grpc_gen_test_cmd="grpc_cloud_prod_gen_$1_cmd"
         declare -F $grpc_gen_test_cmd >> /dev/null || {
           echo "-f: test_func for $1 => $grpc_gen_test_cmd is not defined" 1>&2
@@ -673,7 +674,7 @@ _grpc_launch_servers_args() {
   [[ -n $1 ]] && {
     servers="$@"
   } || {
-    servers="cxx java go node ruby python"
+    servers="cxx java go node ruby python csharp_mono"
     echo "$FUNCNAME: no servers specified, will launch defaults '$servers'"
   }
 }
@@ -709,6 +710,7 @@ grpc_launch_servers() {
       node)   grpc_port=8040 ;;
       python) grpc_port=8050 ;;
       ruby)   grpc_port=8060 ;;
+      csharp_mono)   grpc_port=8070 ;;
       *) echo "bad server_type: $1" 1>&2; return 1 ;;
     esac
     local docker_label="grpc/$server"
@@ -1162,6 +1164,34 @@ grpc_cloud_prod_auth_compute_engine_creds_gen_cxx_cmd() {
     echo $the_cmd
 }
 
+# constructs the full dockerized csharp-mono interop test cmd.
+#
+# call-seq:
+#   flags= .... # generic flags to include the command
+#   cmd=$($grpc_gen_test_cmd $flags)
+grpc_interop_gen_csharp_mono_cmd() {
+  local workdir_flag="-w /var/local/git/grpc/src/csharp/Grpc.IntegrationTesting.Client/bin/Debug"
+  local cmd_prefix="sudo docker run $workdir_flag grpc/csharp_mono";
+  local test_script="mono Grpc.IntegrationTesting.Client.exe --use_tls=true --use_test_ca=true";
+  local the_cmd="$cmd_prefix $test_script $@";
+  echo $the_cmd
+}
+
+# constructs the full dockerized csharp-mono gce=>prod interop test cmd.
+#
+# call-seq:
+#   flags= .... # generic flags to include the command
+#   cmd=$($grpc_gen_test_cmd $flags)
+grpc_cloud_prod_gen_csharp_mono_cmd() {
+  local env_flag="-e SSL_CERT_FILE=/cacerts/roots.pem "
+  local workdir_flag="-w /var/local/git/grpc/src/csharp/Grpc.IntegrationTesting.Client/bin/Debug"
+  local cmd_prefix="sudo docker run $env_flag $workdir_flag grpc/csharp_mono";
+  local test_script="mono Grpc.IntegrationTesting.Client.exe --use_tls=true";
+  local gfe_flags=$(_grpc_prod_gfe_flags);
+  local the_cmd="$cmd_prefix $test_script $gfe_flags $@";
+  echo $the_cmd
+}
+
 # outputs the flags passed to gfe tests
 _grpc_prod_gfe_flags() {
   echo " --server_port=443 --server_host=grpc-test.sandbox.google.com --server_host_override=grpc-test.sandbox.google.com"
diff --git a/tools/gce_setup/shared_startup_funcs.sh b/tools/gce_setup/shared_startup_funcs.sh
index 195f8f28a88..e6eecc56db6 100755
--- a/tools/gce_setup/shared_startup_funcs.sh
+++ b/tools/gce_setup/shared_startup_funcs.sh
@@ -364,7 +364,7 @@ grpc_docker_launch_registry() {
 grpc_docker_pull_known() {
   local addr=$1
   [[ -n $addr ]] || addr="0.0.0.0:5000"
-  local known="base cxx php_base php ruby_base ruby java_base java go node_base node python_base python"
+  local known="base cxx php_base php ruby_base ruby java_base java go node_base node python_base python csharp_mono_base csharp_mono"
   echo "... pulling docker images for '$known'"
   for i in $known
   do
@@ -429,7 +429,10 @@ grpc_dockerfile_install() {
     grpc_docker_sync_roots_pem $dockerfile_dir/cacerts || return 1;
     grpc_docker_sync_service_account $dockerfile_dir/service_account || return 1;
   }
-
+  [[ $image_label == "grpc/csharp_mono" ]] && {
+    grpc_docker_sync_roots_pem $dockerfile_dir/cacerts || return 1;
+    grpc_docker_sync_service_account $dockerfile_dir/service_account || return 1;
+  }
 
   # TODO(temiola): maybe make cache/no-cache a func option?
   sudo docker build $cache_opt -t $image_label $dockerfile_dir || {
diff --git a/tools/run_tests/build_csharp.sh b/tools/run_tests/build_csharp.sh
new file mode 100755
index 00000000000..8227ad37bca
--- /dev/null
+++ b/tools/run_tests/build_csharp.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+set -ex
+
+# change to gRPC repo root
+cd $(dirname $0)/../..
+
+root=`pwd`
+
+xbuild src/csharp/Grpc.sln
diff --git a/tools/run_tests/run_csharp.sh b/tools/run_tests/run_csharp.sh
new file mode 100755
index 00000000000..d10a41ae9f4
--- /dev/null
+++ b/tools/run_tests/run_csharp.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+set -ex
+
+# change to gRPC repo root
+cd $(dirname $0)/../..
+
+root=`pwd`
+cd src/csharp
+
+# TODO: All the tests run pretty fast. In the future, we might need to teach
+# run_tests.py about separate tests to make them run in parallel.
+for assembly_name in Grpc.Core.Tests Grpc.Examples.Tests Grpc.IntegrationTesting
+do
+  LD_LIBRARY_PATH=$root/libs/dbg nunit-console -labels $assembly_name/bin/Debug/$assembly_name.dll
+done
+
+
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index bf9b2c24c94..23ef475db64 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -151,6 +151,16 @@ class RubyLanguage(object):
   def build_steps(self):
     return [['tools/run_tests/build_ruby.sh']]
 
+class CSharpLanguage(object):
+
+  def test_specs(self, config, travis):
+    return [config.job_spec('tools/run_tests/run_csharp.sh', None)]
+
+  def make_targets(self):
+    return ['grpc_csharp_ext']
+
+  def build_steps(self):
+    return [['tools/run_tests/build_csharp.sh']]
 
 # different configurations we can run under
 _CONFIGS = {
@@ -175,7 +185,8 @@ _LANGUAGES = {
     'node': NodeLanguage(),
     'php': PhpLanguage(),
     'python': PythonLanguage(),
-    'ruby': RubyLanguage()
+    'ruby': RubyLanguage(),
+    'csharp': CSharpLanguage()
     }
 
 # parse command line
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index 06bf58f93e8..6f354452aa5 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -381,6 +381,11 @@
     "language": "c++", 
     "name": "thread_pool_test"
   }, 
+  {
+    "flaky": false, 
+    "language": "c", 
+    "name": "chttp2_fake_security_bad_hostname_test"
+  }, 
   {
     "flaky": false, 
     "language": "c", 
@@ -621,6 +626,11 @@
     "language": "c", 
     "name": "chttp2_fake_security_writes_done_hangs_with_pending_read_legacy_test"
   }, 
+  {
+    "flaky": false, 
+    "language": "c", 
+    "name": "chttp2_fullstack_bad_hostname_test"
+  }, 
   {
     "flaky": false, 
     "language": "c", 
@@ -861,6 +871,11 @@
     "language": "c", 
     "name": "chttp2_fullstack_writes_done_hangs_with_pending_read_legacy_test"
   }, 
+  {
+    "flaky": false, 
+    "language": "c", 
+    "name": "chttp2_fullstack_uds_bad_hostname_test"
+  }, 
   {
     "flaky": false, 
     "language": "c", 
@@ -1101,6 +1116,11 @@
     "language": "c", 
     "name": "chttp2_fullstack_uds_writes_done_hangs_with_pending_read_legacy_test"
   }, 
+  {
+    "flaky": false, 
+    "language": "c", 
+    "name": "chttp2_simple_ssl_fullstack_bad_hostname_test"
+  }, 
   {
     "flaky": false, 
     "language": "c", 
@@ -1341,6 +1361,11 @@
     "language": "c", 
     "name": "chttp2_simple_ssl_fullstack_writes_done_hangs_with_pending_read_legacy_test"
   }, 
+  {
+    "flaky": false, 
+    "language": "c", 
+    "name": "chttp2_simple_ssl_with_oauth2_fullstack_bad_hostname_test"
+  }, 
   {
     "flaky": false, 
     "language": "c", 
@@ -1581,6 +1606,11 @@
     "language": "c", 
     "name": "chttp2_simple_ssl_with_oauth2_fullstack_writes_done_hangs_with_pending_read_legacy_test"
   }, 
+  {
+    "flaky": false, 
+    "language": "c", 
+    "name": "chttp2_socket_pair_bad_hostname_test"
+  }, 
   {
     "flaky": false, 
     "language": "c", 
@@ -1821,6 +1851,11 @@
     "language": "c", 
     "name": "chttp2_socket_pair_writes_done_hangs_with_pending_read_legacy_test"
   }, 
+  {
+    "flaky": false, 
+    "language": "c", 
+    "name": "chttp2_socket_pair_one_byte_at_a_time_bad_hostname_test"
+  }, 
   {
     "flaky": false, 
     "language": "c",