Add back native resolver

18 files changed, 37 insertions, 9 deletions

diff --git a/BUILD b/BUILD
index b3ec45df42..7bb2c80925 100644
--- a/BUILD
+++ b/BUILD
@@ -489,6 +489,7 @@ cc_library(
     "src/core/ext/resolver/dns/c_ares/dns_resolver.c",
     "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c",
     "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c",
+    "src/core/ext/resolver/dns/native/dns_resolver.c",
     "src/core/ext/resolver/sockaddr/sockaddr_resolver.c",
     "src/core/ext/load_reporting/load_reporting.c",
     "src/core/ext/load_reporting/load_reporting_filter.c",
@@ -1184,6 +1185,7 @@ cc_library(
     "src/core/ext/resolver/dns/c_ares/dns_resolver.c",
     "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c",
     "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c",
+    "src/core/ext/resolver/dns/native/dns_resolver.c",
     "src/core/ext/resolver/sockaddr/sockaddr_resolver.c",
     "src/core/ext/load_reporting/load_reporting.c",
     "src/core/ext/load_reporting/load_reporting_filter.c",
@@ -1988,6 +1990,7 @@ objc_library(
     "src/core/ext/resolver/dns/c_ares/dns_resolver.c",
     "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c",
     "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c",
+    "src/core/ext/resolver/dns/native/dns_resolver.c",
     "src/core/ext/resolver/sockaddr/sockaddr_resolver.c",
     "src/core/ext/load_reporting/load_reporting.c",
     "src/core/ext/load_reporting/load_reporting_filter.c",
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d6489ecc36..5542d1eb61 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -453,6 +453,7 @@ add_library(grpc
   src/core/ext/resolver/dns/c_ares/dns_resolver.c
   src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
   src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
+  src/core/ext/resolver/dns/native/dns_resolver.c
   src/core/ext/resolver/sockaddr/sockaddr_resolver.c
   src/core/ext/load_reporting/load_reporting.c
   src/core/ext/load_reporting/load_reporting_filter.c
@@ -903,6 +904,7 @@ add_library(grpc_unsecure
   src/core/ext/resolver/dns/c_ares/dns_resolver.c
   src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
   src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
+  src/core/ext/resolver/dns/native/dns_resolver.c
   src/core/ext/resolver/sockaddr/sockaddr_resolver.c
   src/core/ext/load_reporting/load_reporting.c
   src/core/ext/load_reporting/load_reporting_filter.c
diff --git a/Makefile b/Makefile
index bac91e6755..20b11051f2 100644
--- a/Makefile
+++ b/Makefile
@@ -2756,6 +2756,7 @@ LIBGRPC_SRC = \
     src/core/ext/resolver/dns/c_ares/dns_resolver.c \
     src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
     src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
+    src/core/ext/resolver/dns/native/dns_resolver.c \
     src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
     src/core/ext/load_reporting/load_reporting.c \
     src/core/ext/load_reporting/load_reporting_filter.c \
@@ -3454,6 +3455,7 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/ext/resolver/dns/c_ares/dns_resolver.c \
     src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
     src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
+    src/core/ext/resolver/dns/native/dns_resolver.c \
     src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
     src/core/ext/load_reporting/load_reporting.c \
     src/core/ext/load_reporting/load_reporting_filter.c \
diff --git a/binding.gyp b/binding.gyp
index db18f7374f..cc942c239b 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -742,6 +742,7 @@
         'src/core/ext/resolver/dns/c_ares/dns_resolver.c',
         'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
         'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c',
+        'src/core/ext/resolver/dns/native/dns_resolver.c',
         'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
         'src/core/ext/load_reporting/load_reporting.c',
         'src/core/ext/load_reporting/load_reporting_filter.c',
diff --git a/build.yaml b/build.yaml
index 1554d37fd2..6d5c6f6077 100644
--- a/build.yaml
+++ b/build.yaml
@@ -433,7 +433,6 @@ filegroups:
 - name: grpc_resolver_dns_native
   src:
   - src/core/ext/resolver/dns/native/dns_resolver.c
-  plugin: grpc_resolver_dns_native
   uses:
   - grpc_base
   - grpc_client_config
@@ -845,6 +844,7 @@ libs:
   - grpc_lb_policy_pick_first
   - grpc_lb_policy_round_robin
   - grpc_resolver_dns_ares
+  - grpc_resolver_dns_native
   - grpc_resolver_sockaddr
   - grpc_load_reporting
   - grpc_secure
@@ -937,6 +937,7 @@ libs:
   - grpc_transport_chttp2_server_insecure
   - grpc_transport_chttp2_client_insecure
   - grpc_resolver_dns_ares
+  - grpc_resolver_dns_native
   - grpc_resolver_sockaddr
   - grpc_load_reporting
   - grpc_lb_policy_grpclb
diff --git a/config.m4 b/config.m4
index 9f0d368959..46138d4bc2 100644
--- a/config.m4
+++ b/config.m4
@@ -257,6 +257,7 @@ if test "$PHP_GRPC" != "no"; then
     src/core/ext/resolver/dns/c_ares/dns_resolver.c \
     src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
     src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
+    src/core/ext/resolver/dns/native/dns_resolver.c \
     src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
     src/core/ext/load_reporting/load_reporting.c \
     src/core/ext/load_reporting/load_reporting_filter.c \
@@ -587,6 +588,7 @@ if test "$PHP_GRPC" != "no"; then
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/lb_policy/round_robin)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/load_reporting)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/resolver/dns/c_ares)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/resolver/dns/native)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/resolver/sockaddr)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/alpn)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/client/insecure)
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index f72c00f3c1..e2a22e9e0a 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -589,6 +589,7 @@ Pod::Spec.new do |s|
                       'src/core/ext/resolver/dns/c_ares/dns_resolver.c',
                       'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
                       'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c',
+                      'src/core/ext/resolver/dns/native/dns_resolver.c',
                       'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
                       'src/core/ext/load_reporting/load_reporting.c',
                       'src/core/ext/load_reporting/load_reporting_filter.c',
diff --git a/grpc.gemspec b/grpc.gemspec
index 6a49c1f0e2..4d908eb256 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -508,6 +508,7 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/ext/resolver/dns/c_ares/dns_resolver.c )
   s.files += %w( src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c )
   s.files += %w( src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c )
+  s.files += %w( src/core/ext/resolver/dns/native/dns_resolver.c )
   s.files += %w( src/core/ext/resolver/sockaddr/sockaddr_resolver.c )
   s.files += %w( src/core/ext/load_reporting/load_reporting.c )
   s.files += %w( src/core/ext/load_reporting/load_reporting_filter.c )
diff --git a/package.xml b/package.xml
index 709cda1da0..218ab05e81 100644
--- a/package.xml
+++ b/package.xml
@@ -516,6 +516,7 @@
     <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/dns_resolver.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/resolver/dns/native/dns_resolver.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/resolver/sockaddr/sockaddr_resolver.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/load_reporting/load_reporting.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/load_reporting/load_reporting_filter.c" role="src" />
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c b/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
index d4929570d1..cec4daab2f 100644
--- a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
+++ b/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
@@ -250,14 +250,6 @@ void grpc_resolve_address_ares_impl(grpc_exec_ctx *exec_ctx, const char *name,
     return;
   }
 
-  if (name[0] == 'u' && name[1] == 'n' && name[2] == 'i' && name[3] == 'x' &&
-      name[4] == ':' && name[5] != 0) {
-    grpc_exec_ctx_sched(exec_ctx, on_done,
-                        grpc_resolve_unix_domain_address(name + 5, addrs),
-                        NULL);
-    return;
-  }
-
   /* parse name, splitting it into host and port parts */
   gpr_split_host_port(name, &host, &port);
   if (host == NULL) {
diff --git a/src/core/ext/resolver/dns/native/dns_resolver.c b/src/core/ext/resolver/dns/native/dns_resolver.c
index 31ac968670..3627d957cb 100644
--- a/src/core/ext/resolver/dns/native/dns_resolver.c
+++ b/src/core/ext/resolver/dns/native/dns_resolver.c
@@ -97,6 +97,7 @@ static void dns_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx,
 static void dns_shutdown(grpc_exec_ctx *exec_ctx, grpc_resolver *r);
 static void dns_channel_saw_error(grpc_exec_ctx *exec_ctx, grpc_resolver *r);
 static void dns_next(grpc_exec_ctx *exec_ctx, grpc_resolver *r,
+                     grpc_polling_entity *pollent,
                      grpc_client_config **target_config,
                      grpc_closure *on_complete);
 
@@ -130,6 +131,7 @@ static void dns_channel_saw_error(grpc_exec_ctx *exec_ctx,
 }
 
 static void dns_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
+                     grpc_polling_entity *pollent,
                      grpc_client_config **target_config,
                      grpc_closure *on_complete) {
   dns_resolver *r = (dns_resolver *)resolver;
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index c5e57477e0..7eea66b8ca 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -251,6 +251,7 @@ CORE_SOURCE_FILES = [
   'src/core/ext/resolver/dns/c_ares/dns_resolver.c',
   'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
   'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c',
+  'src/core/ext/resolver/dns/native/dns_resolver.c',
   'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
   'src/core/ext/load_reporting/load_reporting.c',
   'src/core/ext/load_reporting/load_reporting_filter.c',
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index e368e6d17b..e882f9a242 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -1127,6 +1127,7 @@ src/core/ext/lb_policy/round_robin/round_robin.c \
 src/core/ext/resolver/dns/c_ares/dns_resolver.c \
 src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
 src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
+src/core/ext/resolver/dns/native/dns_resolver.c \
 src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
 src/core/ext/load_reporting/load_reporting.c \
 src/core/ext/load_reporting/load_reporting_filter.c \
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 8db3c28922..f868d38d15 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -4263,6 +4263,7 @@
       "grpc_lb_policy_round_robin", 
       "grpc_load_reporting", 
       "grpc_resolver_dns_ares", 
+      "grpc_resolver_dns_native", 
       "grpc_resolver_sockaddr", 
       "grpc_secure", 
       "grpc_transport_chttp2_client_insecure", 
@@ -4358,6 +4359,7 @@
       "grpc_lb_policy_round_robin", 
       "grpc_load_reporting", 
       "grpc_resolver_dns_ares", 
+      "grpc_resolver_dns_native", 
       "grpc_resolver_sockaddr", 
       "grpc_transport_chttp2_client_insecure", 
       "grpc_transport_chttp2_server_insecure"
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index e65c110f4e..2cbcf3e235 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -814,6 +814,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.c">
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index 4cdd31f412..0715513745 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -529,6 +529,9 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
       <Filter>src\core\ext\resolver\dns\c_ares</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
+      <Filter>src\core\ext\resolver\dns\native</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
       <Filter>src\core\ext\resolver\sockaddr</Filter>
     </ClCompile>
@@ -1223,6 +1226,9 @@
     <Filter Include="src\core\ext\resolver\dns\c_ares">
       <UniqueIdentifier>{2b72688f-79b8-05dd-2896-c7d5dec07dd6}</UniqueIdentifier>
     </Filter>
+    <Filter Include="src\core\ext\resolver\dns\native">
+      <UniqueIdentifier>{94e34be0-29d2-1731-3c1e-617ec4986acb}</UniqueIdentifier>
+    </Filter>
     <Filter Include="src\core\ext\resolver\sockaddr">
       <UniqueIdentifier>{98c1ccc2-2c91-a3d2-6040-a2e15993d51a}</UniqueIdentifier>
     </Filter>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index d69de11d86..7645ae3858 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -705,6 +705,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.c">
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index 015533e90c..fbe87f7be9 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -418,6 +418,9 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
       <Filter>src\core\ext\resolver\dns\c_ares</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
+      <Filter>src\core\ext\resolver\dns\native</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
       <Filter>src\core\ext\resolver\sockaddr</Filter>
     </ClCompile>
@@ -1058,6 +1061,9 @@
     <Filter Include="src\core\ext\resolver\dns\c_ares">
       <UniqueIdentifier>{932d8afd-e042-46d0-30c5-1c45386165d9}</UniqueIdentifier>
     </Filter>
+    <Filter Include="src\core\ext\resolver\dns\native">
+      <UniqueIdentifier>{3d5398c8-928b-9096-8eb7-f8c40ee68c4d}</UniqueIdentifier>
+    </Filter>
     <Filter Include="src\core\ext\resolver\sockaddr">
       <UniqueIdentifier>{71686ed0-fbf9-02a4-d65a-a73f7dc4e2be}</UniqueIdentifier>
     </Filter>