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-rw-r--r--BUILD1
-rw-r--r--CMakeLists.txt2
-rw-r--r--Makefile2
-rw-r--r--binding.gyp1
-rw-r--r--build.yaml1
-rw-r--r--config.m41
-rw-r--r--gRPC-Core.podspec1
-rwxr-xr-xgrpc.gemspec1
-rw-r--r--package.xml1
-rw-r--r--src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c13
-rw-r--r--src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c74
-rw-r--r--src/core/lib/iomgr/ev_epollsig_linux.c5
-rw-r--r--src/python/grpcio/grpc_core_dependencies.py1
-rw-r--r--test/core/client_channel/resolvers/dns_resolver_test.c7
-rw-r--r--tools/doxygen/Doxyfile.core.internal1
-rw-r--r--tools/run_tests/generated/sources_and_headers.json3
-rw-r--r--vsprojects/vcxproj/grpc/grpc.vcxproj2
-rw-r--r--vsprojects/vcxproj/grpc/grpc.vcxproj.filters3
-rw-r--r--vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj2
-rw-r--r--vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters3
20 files changed, 116 insertions, 9 deletions
diff --git a/BUILD b/BUILD
index cc5fd3eb47..c80097456d 100644
--- a/BUILD
+++ b/BUILD
@@ -1008,6 +1008,7 @@ grpc_cc_library(
"src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c",
"src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c",
"src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c",
+ "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c",
],
hdrs = [
"src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h",
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d10c0409b6..a9b078f3ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1145,6 +1145,7 @@ add_library(grpc
src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
+ src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c
src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
src/core/ext/filters/load_reporting/load_reporting.c
@@ -2025,6 +2026,7 @@ add_library(grpc_unsecure
src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
+ src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c
src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
src/core/ext/filters/load_reporting/load_reporting.c
diff --git a/Makefile b/Makefile
index e6dd66e12f..6d7ef9d711 100644
--- a/Makefile
+++ b/Makefile
@@ -3122,6 +3122,7 @@ LIBGRPC_SRC = \
src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+ src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c \
src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
src/core/ext/filters/load_reporting/load_reporting.c \
@@ -3971,6 +3972,7 @@ LIBGRPC_UNSECURE_SRC = \
src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+ src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c \
src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
src/core/ext/filters/load_reporting/load_reporting.c \
diff --git a/binding.gyp b/binding.gyp
index 8aafdaa62b..be52e8a07e 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -878,6 +878,7 @@
'src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c',
'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c',
+ 'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c',
'src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c',
'src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c',
'src/core/ext/filters/load_reporting/load_reporting.c',
diff --git a/build.yaml b/build.yaml
index ecd9ebe5b7..2a0bdd1ddb 100644
--- a/build.yaml
+++ b/build.yaml
@@ -589,6 +589,7 @@ filegroups:
- src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
- src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
- src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
+ - src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c
plugin: grpc_resolver_dns_ares
uses:
- grpc_base
diff --git a/config.m4 b/config.m4
index ec463b2243..5e8d82246f 100644
--- a/config.m4
+++ b/config.m4
@@ -310,6 +310,7 @@ if test "$PHP_GRPC" != "no"; then
src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+ src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c \
src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
src/core/ext/filters/load_reporting/load_reporting.c \
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 1176a15f2b..6b7bb61a3f 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -701,6 +701,7 @@ Pod::Spec.new do |s|
'src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c',
'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c',
+ 'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c',
'src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c',
'src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c',
'src/core/ext/filters/load_reporting/load_reporting.c',
diff --git a/grpc.gemspec b/grpc.gemspec
index 32c1164456..68a7203cd1 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -617,6 +617,7 @@ Gem::Specification.new do |s|
s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c )
s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c )
s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c )
+ s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c )
s.files += %w( src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c )
s.files += %w( src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c )
s.files += %w( src/core/ext/filters/load_reporting/load_reporting.c )
diff --git a/package.xml b/package.xml
index e560139dcd..997f19194d 100644
--- a/package.xml
+++ b/package.xml
@@ -626,6 +626,7 @@
<file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c" role="src" />
<file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c" role="src" />
<file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c" role="src" />
+ <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c" role="src" />
<file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c" role="src" />
<file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c" role="src" />
<file baseinstalldir="/" name="src/core/ext/filters/load_reporting/load_reporting.c" role="src" />
diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
index afbccfd840..a184255745 100644
--- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
@@ -281,7 +281,7 @@ static void on_srv_query_done_cb(void *arg, int status, int timeouts,
grpc_exec_ctx_finish(&exec_ctx);
}
-grpc_ares_request *grpc_dns_lookup_ares_impl(
+static grpc_ares_request *grpc_dns_lookup_ares_impl(
grpc_exec_ctx *exec_ctx, const char *dns_server, const char *name,
const char *default_port, grpc_pollset_set *interested_parties,
grpc_closure *on_done, grpc_lb_addresses **addrs, bool check_grpclb) {
@@ -466,11 +466,12 @@ static void on_dns_lookup_done_cb(grpc_exec_ctx *exec_ctx, void *arg,
gpr_free(r);
}
-void grpc_resolve_address_ares_impl(grpc_exec_ctx *exec_ctx, const char *name,
- const char *default_port,
- grpc_pollset_set *interested_parties,
- grpc_closure *on_done,
- grpc_resolved_addresses **addrs) {
+static void grpc_resolve_address_ares_impl(grpc_exec_ctx *exec_ctx,
+ const char *name,
+ const char *default_port,
+ grpc_pollset_set *interested_parties,
+ grpc_closure *on_done,
+ grpc_resolved_addresses **addrs) {
grpc_resolve_address_ares_request *r =
gpr_zalloc(sizeof(grpc_resolve_address_ares_request));
r->addrs_out = addrs;
diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c
new file mode 100644
index 0000000000..5c15e3bdf5
--- /dev/null
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c
@@ -0,0 +1,74 @@
+/*
+ *
+ * Copyright 2017, 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 <grpc/support/port_platform.h>
+#if GRPC_ARES != 1 || defined(GRPC_UV)
+
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
+
+struct grpc_ares_request {
+ char val;
+};
+
+static grpc_ares_request *grpc_dns_lookup_ares_impl(
+ grpc_exec_ctx *exec_ctx, const char *dns_server, const char *name,
+ const char *default_port, grpc_pollset_set *interested_parties,
+ grpc_closure *on_done, grpc_lb_addresses **addrs, bool check_grpclb) {
+ return NULL;
+}
+
+grpc_ares_request *(*grpc_dns_lookup_ares)(
+ grpc_exec_ctx *exec_ctx, const char *dns_server, const char *name,
+ const char *default_port, grpc_pollset_set *interested_parties,
+ grpc_closure *on_done, grpc_lb_addresses **addrs,
+ bool check_grpclb) = grpc_dns_lookup_ares_impl;
+
+void grpc_cancel_ares_request(grpc_exec_ctx *exec_ctx, grpc_ares_request *r) {}
+
+grpc_error *grpc_ares_init(void) { return GRPC_ERROR_NONE; }
+
+void grpc_ares_cleanup(void) {}
+
+static void grpc_resolve_address_ares_impl(grpc_exec_ctx *exec_ctx,
+ const char *name,
+ const char *default_port,
+ grpc_pollset_set *interested_parties,
+ grpc_closure *on_done,
+ grpc_resolved_addresses **addrs) {}
+
+void (*grpc_resolve_address_ares)(
+ grpc_exec_ctx *exec_ctx, const char *name, const char *default_port,
+ grpc_pollset_set *interested_parties, grpc_closure *on_done,
+ grpc_resolved_addresses **addrs) = grpc_resolve_address_ares_impl;
+
+#endif /* GRPC_ARES != 1 || defined(GRPC_UV) */
diff --git a/src/core/lib/iomgr/ev_epollsig_linux.c b/src/core/lib/iomgr/ev_epollsig_linux.c
index 92c555b7ea..d5534ec397 100644
--- a/src/core/lib/iomgr/ev_epollsig_linux.c
+++ b/src/core/lib/iomgr/ev_epollsig_linux.c
@@ -1047,7 +1047,10 @@ static void fd_orphan(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
unhappy. */
PI_UNREF(exec_ctx, unref_pi, "fd_orphan");
}
- GRPC_LOG_IF_ERROR("fd_orphan", GRPC_ERROR_REF(error));
+ if (error != GRPC_ERROR_NONE) {
+ const char *msg = grpc_error_string(error);
+ gpr_log(GPR_DEBUG, "fd_orphan: %s", msg);
+ }
GRPC_ERROR_UNREF(error);
}
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index 9770301d09..38673fcb39 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -301,6 +301,7 @@ CORE_SOURCE_FILES = [
'src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c',
'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c',
+ 'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c',
'src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c',
'src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c',
'src/core/ext/filters/load_reporting/load_reporting.c',
diff --git a/test/core/client_channel/resolvers/dns_resolver_test.c b/test/core/client_channel/resolvers/dns_resolver_test.c
index fa7857d418..b92f4fba2c 100644
--- a/test/core/client_channel/resolvers/dns_resolver_test.c
+++ b/test/core/client_channel/resolvers/dns_resolver_test.c
@@ -35,6 +35,7 @@
#include <grpc/support/log.h>
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
#include "src/core/ext/filters/client_channel/resolver_registry.h"
#include "src/core/lib/iomgr/combiner.h"
#include "test/core/util/test_config.h"
@@ -88,7 +89,11 @@ int main(int argc, char **argv) {
test_succeeds(dns, "dns:10.2.1.1");
test_succeeds(dns, "dns:10.2.1.1:1234");
test_succeeds(dns, "ipv4:www.google.com");
- test_fails(dns, "ipv4://8.8.8.8/8.8.8.8:8888");
+ if (grpc_resolve_address == grpc_resolve_address_ares) {
+ test_succeeds(dns, "ipv4://8.8.8.8/8.8.8.8:8888");
+ } else {
+ test_fails(dns, "ipv4://8.8.8.8/8.8.8.8:8888");
+ }
grpc_resolver_factory_unref(dns);
{
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index eb0883b797..7283e8628a 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -945,6 +945,7 @@ src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h \
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c \
src/core/ext/filters/client_channel/resolver/dns/native/README.md \
src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
src/core/ext/filters/client_channel/resolver/sockaddr/README.md \
diff --git a/tools/run_tests/generated/sources_and_headers.json b/tools/run_tests/generated/sources_and_headers.json
index a5d7fda928..2529d8ff30 100644
--- a/tools/run_tests/generated/sources_and_headers.json
+++ b/tools/run_tests/generated/sources_and_headers.json
@@ -8482,7 +8482,8 @@
"src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h",
"src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c",
"src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c",
- "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
+ "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h",
+ "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.c"
],
"third_party": false,
"type": "filegroup"
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index 2ccda23694..27151ac30d 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -969,6 +969,8 @@
</ClCompile>
<ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
</ClCompile>
+ <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper_fallback.c">
+ </ClCompile>
<ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
</ClCompile>
<ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\sockaddr\sockaddr_resolver.c">
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index 3a1c1f9c5a..934a0e0144 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -676,6 +676,9 @@
<ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
<Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
</ClCompile>
+ <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper_fallback.c">
+ <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
+ </ClCompile>
<ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
<Filter>src\core\ext\filters\client_channel\resolver\dns\native</Filter>
</ClCompile>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index d084d70702..f5f8e9c826 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -854,6 +854,8 @@
</ClCompile>
<ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
</ClCompile>
+ <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper_fallback.c">
+ </ClCompile>
<ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
</ClCompile>
<ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\sockaddr\sockaddr_resolver.c">
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index ba826852a3..e0816cba48 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -556,6 +556,9 @@
<ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
<Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
</ClCompile>
+ <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper_fallback.c">
+ <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
+ </ClCompile>
<ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
<Filter>src\core\ext\filters\client_channel\resolver\dns\native</Filter>
</ClCompile>