first part, secure channel only

BUILD

@@ -162,6 +162,7 @@ cc_library(
     "src/core/channel/noop_filter.h",
     "src/core/client_config/client_config.h",
     "src/core/client_config/connector.h",
+    "src/core/client_config/initial_connect_string.h",
     "src/core/client_config/lb_policies/pick_first.h",
     "src/core/client_config/lb_policies/round_robin.h",
     "src/core/client_config/lb_policy.h",
@@ -298,6 +299,8 @@ cc_library(
     "src/core/channel/noop_filter.c",
     "src/core/client_config/client_config.c",
     "src/core/client_config/connector.c",
+    "src/core/client_config/default_initial_connect_string.c",
+    "src/core/client_config/initial_connect_string.c",
     "src/core/client_config/lb_policies/pick_first.c",
     "src/core/client_config/lb_policies/round_robin.c",
     "src/core/client_config/lb_policy.c",
@@ -450,6 +453,7 @@ cc_library(
     "src/core/channel/noop_filter.h",
     "src/core/client_config/client_config.h",
     "src/core/client_config/connector.h",
+    "src/core/client_config/initial_connect_string.h",
     "src/core/client_config/lb_policies/pick_first.h",
     "src/core/client_config/lb_policies/round_robin.h",
     "src/core/client_config/lb_policy.h",
@@ -566,6 +570,8 @@ cc_library(
     "src/core/channel/noop_filter.c",
     "src/core/client_config/client_config.c",
     "src/core/client_config/connector.c",
+    "src/core/client_config/default_initial_connect_string.c",
+    "src/core/client_config/initial_connect_string.c",
     "src/core/client_config/lb_policies/pick_first.c",
     "src/core/client_config/lb_policies/round_robin.c",
     "src/core/client_config/lb_policy.c",
@@ -1094,6 +1100,8 @@ objc_library(
     "src/core/channel/noop_filter.c",
     "src/core/client_config/client_config.c",
     "src/core/client_config/connector.c",
+    "src/core/client_config/default_initial_connect_string.c",
+    "src/core/client_config/initial_connect_string.c",
     "src/core/client_config/lb_policies/pick_first.c",
     "src/core/client_config/lb_policies/round_robin.c",
     "src/core/client_config/lb_policy.c",
@@ -1243,6 +1251,7 @@ objc_library(
     "src/core/channel/noop_filter.h",
     "src/core/client_config/client_config.h",
     "src/core/client_config/connector.h",
+    "src/core/client_config/initial_connect_string.h",
     "src/core/client_config/lb_policies/pick_first.h",
     "src/core/client_config/lb_policies/round_robin.h",
     "src/core/client_config/lb_policy.h",

Makefile

@@ -4302,6 +4302,8 @@ LIBGRPC_SRC = \
     src/core/channel/noop_filter.c \
     src/core/client_config/client_config.c \
     src/core/client_config/connector.c \
+    src/core/client_config/default_initial_connect_string.c \
+    src/core/client_config/initial_connect_string.c \
     src/core/client_config/lb_policies/pick_first.c \
     src/core/client_config/lb_policies/round_robin.c \
     src/core/client_config/lb_policy.c \
@@ -4584,6 +4586,8 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/channel/noop_filter.c \
     src/core/client_config/client_config.c \
     src/core/client_config/connector.c \
+    src/core/client_config/default_initial_connect_string.c \
+    src/core/client_config/initial_connect_string.c \
     src/core/client_config/lb_policies/pick_first.c \
     src/core/client_config/lb_policies/round_robin.c \
     src/core/client_config/lb_policy.c \

binding.gyp

@@ -185,6 +185,8 @@
         'src/core/channel/noop_filter.c',
         'src/core/client_config/client_config.c',
         'src/core/client_config/connector.c',
+        'src/core/client_config/default_initial_connect_string.c',
+        'src/core/client_config/initial_connect_string.c',
         'src/core/client_config/lb_policies/pick_first.c',
         'src/core/client_config/lb_policies/round_robin.c',
         'src/core/client_config/lb_policy.c',

build.yaml

@@ -118,6 +118,7 @@ filegroups:
   - src/core/channel/noop_filter.h
   - src/core/client_config/client_config.h
   - src/core/client_config/connector.h
+  - src/core/client_config/initial_connect_string.h
   - src/core/client_config/lb_policies/pick_first.h
   - src/core/client_config/lb_policies/round_robin.h
   - src/core/client_config/lb_policy.h
@@ -231,6 +232,8 @@ filegroups:
   - src/core/channel/noop_filter.c
   - src/core/client_config/client_config.c
   - src/core/client_config/connector.c
+  - src/core/client_config/default_initial_connect_string.c
+  - src/core/client_config/initial_connect_string.c
   - src/core/client_config/lb_policies/pick_first.c
   - src/core/client_config/lb_policies/round_robin.c
   - src/core/client_config/lb_policy.c

gRPC.podspec

@@ -166,6 +166,7 @@ Pod::Spec.new do |s|
                       'src/core/channel/noop_filter.h',
                       'src/core/client_config/client_config.h',
                       'src/core/client_config/connector.h',
+                      'src/core/client_config/initial_connect_string.h',
                       'src/core/client_config/lb_policies/pick_first.h',
                       'src/core/client_config/lb_policies/round_robin.h',
                       'src/core/client_config/lb_policy.h',
@@ -309,6 +310,8 @@ Pod::Spec.new do |s|
                       'src/core/channel/noop_filter.c',
                       'src/core/client_config/client_config.c',
                       'src/core/client_config/connector.c',
+                      'src/core/client_config/default_initial_connect_string.c',
+                      'src/core/client_config/initial_connect_string.c',
                       'src/core/client_config/lb_policies/pick_first.c',
                       'src/core/client_config/lb_policies/round_robin.c',
                       'src/core/client_config/lb_policy.c',
@@ -460,6 +463,7 @@ Pod::Spec.new do |s|
                               'src/core/channel/noop_filter.h',
                               'src/core/client_config/client_config.h',
                               'src/core/client_config/connector.h',
+                              'src/core/client_config/initial_connect_string.h',
                               'src/core/client_config/lb_policies/pick_first.h',
                               'src/core/client_config/lb_policies/round_robin.h',
                               'src/core/client_config/lb_policy.h',

src/core/client_config/connector.h

@@ -51,6 +51,8 @@ typedef struct {
   /** address to connect to */
   const struct sockaddr *addr;
   size_t addr_len;
+  /** initial connect string to send */
+  gpr_slice initial_connect_string;
   /** deadline for connection */
   gpr_timespec deadline;
   /** channel arguments (to be passed to transport) */

src/core/client_config/default_initial_connect_string.c

@@ -0,0 +1,40 @@
+/*
+ *
+ * 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 <sys/socket.h>
+
+#include <grpc/support/slice.h>
+
+void grpc_set_default_initial_connect_string(struct sockaddr **addr,
+                                             size_t *addr_len,
+                                             gpr_slice *initial_str) {}

src/core/client_config/initial_connect_string.c

@@ -0,0 +1,53 @@
+/*
+ *
+ * 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 "src/core/client_config/initial_connect_string.h"
+
+#include <stddef.h>
+
+extern void grpc_set_default_initial_connect_string(struct sockaddr **addr,
+                                                    size_t *addr_len,
+                                                    gpr_slice *initial_str);
+
+static grpc_set_initial_connect_string_func g_set_initial_connect_string_func =
+    grpc_set_default_initial_connect_string;
+
+void grpc_test_set_initial_connect_string_function(
+    grpc_set_initial_connect_string_func func) {
+  g_set_initial_connect_string_func = func;
+}
+
+void grpc_set_initial_connect_string(struct sockaddr **addr, size_t *addr_len,
+                                     gpr_slice *initial_str) {
+  g_set_initial_connect_string_func(addr, addr_len, initial_str);
+}

src/core/client_config/initial_connect_string.h

@@ -0,0 +1,51 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+#ifndef GRPC_INTERNAL_CORE_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H
+#define GRPC_INTERNAL_CORE_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H
+
+#include <sys/socket.h>
+
+#include <grpc/support/slice.h>
+
+typedef void (*grpc_set_initial_connect_string_func)(struct sockaddr **addr,
+                                                     size_t *addr_len,
+                                                     gpr_slice *initial_str);
+void grpc_test_set_initial_connect_string_function(
+    grpc_set_initial_connect_string_func func);
+
+/** Set a string to be sent once connected. Optionally reset addr. */
+void grpc_set_initial_connect_string(struct sockaddr **addr, size_t *addr_len,
+                                     gpr_slice *connect_string);
+
+#endif /* GRPC_INTERNAL_CORE_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H */

src/core/client_config/subchannel.c

@@ -40,6 +40,7 @@
 #include "src/core/channel/channel_args.h"
 #include "src/core/channel/client_channel.h"
 #include "src/core/channel/connected_channel.h"
+#include "src/core/client_config/initial_connect_string.h"
 #include "src/core/iomgr/timer.h"
 #include "src/core/transport/connectivity_state.h"
 #include "src/core/surface/channel.h"
@@ -85,6 +86,8 @@ struct grpc_subchannel {
   /** address to connect to */
   struct sockaddr *addr;
   size_t addr_len;
+  /** initial string to send to peer */
+  gpr_slice initial_connect_string;
   /** metadata context */
   grpc_mdctx *mdctx;
   /** master channel - the grpc_channel instance that ultimately owns
@@ -261,6 +264,7 @@ static void subchannel_destroy(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) {
   gpr_free((void *)c->filters);
   grpc_channel_args_destroy(c->args);
   gpr_free(c->addr);
+  gpr_slice_unref(c->initial_connect_string);
   grpc_mdctx_unref(c->mdctx);
   grpc_connectivity_state_destroy(exec_ctx, &c->state_tracker);
   grpc_connector_unref(exec_ctx, c->connector);
@@ -299,6 +303,8 @@ grpc_subchannel *grpc_subchannel_create(grpc_connector *connector,
   c->addr = gpr_malloc(args->addr_len);
   memcpy(c->addr, args->addr, args->addr_len);
   c->addr_len = args->addr_len;
+  grpc_set_initial_connect_string(&c->addr, &c->addr_len,
+                                  &c->initial_connect_string);
   c->args = grpc_channel_args_copy(args->args);
   c->mdctx = args->mdctx;
   c->master = args->master;
@@ -343,6 +349,7 @@ static void continue_connect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) {
   args.addr_len = c->addr_len;
   args.deadline = compute_connect_deadline(c);
   args.channel_args = c->args;
+  args.initial_connect_string = c->initial_connect_string;
 
   grpc_connector_connect(exec_ctx, c->connector, &args, &c->connecting_result,
                          &c->connected);

src/core/surface/secure_channel_create.c

@@ -37,6 +37,8 @@
 #include <string.h>
 
 #include <grpc/support/alloc.h>
+#include <grpc/support/slice.h>
+#include <grpc/support/slice_buffer.h>
 
 #include "src/core/census/grpc_filter.h"
 #include "src/core/channel/channel_args.h"
@@ -61,6 +63,8 @@ typedef struct {
   grpc_closure *notify;
   grpc_connect_in_args args;
   grpc_connect_out_args *result;
+  grpc_closure initial_string_sent;
+  gpr_slice_buffer initial_string_buffer;
 
   gpr_mu mu;
   grpc_endpoint *connecting_endpoint;
@@ -80,6 +84,7 @@ static void connector_unref(grpc_exec_ctx *exec_ctx, grpc_connector *con) {
   connector *c = (connector *)con;
   if (gpr_unref(&c->refs)) {
     grpc_mdctx_unref(c->mdctx);
+    /* c->initial_string_buffer does not need to be destroyed */
     gpr_free(c);
   }
 }
@@ -118,6 +123,14 @@ static void on_secure_handshake_done(grpc_exec_ctx *exec_ctx, void *arg,
   notify->cb(exec_ctx, notify->cb_arg, 1);
 }
 
+static void on_initial_connect_string_sent(grpc_exec_ctx *exec_ctx, void *arg,
+                                           int success) {
+  connector *c = arg;
+  grpc_security_connector_do_handshake(exec_ctx, &c->security_connector->base,
+                                       c->connecting_endpoint,
+                                       on_secure_handshake_done, c);
+}
+
 static void connected(grpc_exec_ctx *exec_ctx, void *arg, int success) {
   connector *c = arg;
   grpc_closure *notify;
@@ -127,8 +140,19 @@ static void connected(grpc_exec_ctx *exec_ctx, void *arg, int success) {
     GPR_ASSERT(c->connecting_endpoint == NULL);
     c->connecting_endpoint = tcp;
     gpr_mu_unlock(&c->mu);
-    grpc_security_connector_do_handshake(exec_ctx, &c->security_connector->base,
+    if (!GPR_SLICE_IS_EMPTY(c->args.initial_connect_string)) {
-                                         tcp, on_secure_handshake_done, c);
+      grpc_closure_init(&c->initial_string_sent, on_initial_connect_string_sent,
+                        c);
+      gpr_slice_buffer_init(&c->initial_string_buffer);
+      gpr_slice_buffer_add(&c->initial_string_buffer,
+                           c->args.initial_connect_string);
+      grpc_endpoint_write(exec_ctx, tcp, &c->initial_string_buffer,
+                          &c->initial_string_sent);
+    } else {
+      grpc_security_connector_do_handshake(exec_ctx,
+                                           &c->security_connector->base, tcp,
+                                           on_secure_handshake_done, c);
+    }
   } else {
     memset(c->result, 0, sizeof(*c->result));
     notify = c->notify;

tools/doxygen/Doxyfile.core.internal

@@ -793,6 +793,7 @@ src/core/channel/http_server_filter.h \
 src/core/channel/noop_filter.h \
 src/core/client_config/client_config.h \
 src/core/client_config/connector.h \
+src/core/client_config/initial_connect_string.h \
 src/core/client_config/lb_policies/pick_first.h \
 src/core/client_config/lb_policies/round_robin.h \
 src/core/client_config/lb_policy.h \
@@ -929,6 +930,8 @@ src/core/channel/http_server_filter.c \
 src/core/channel/noop_filter.c \
 src/core/client_config/client_config.c \
 src/core/client_config/connector.c \
+src/core/client_config/default_initial_connect_string.c \
+src/core/client_config/initial_connect_string.c \
 src/core/client_config/lb_policies/pick_first.c \
 src/core/client_config/lb_policies/round_robin.c \
 src/core/client_config/lb_policy.c \

tools/run_tests/sources_and_headers.json

@@ -13300,6 +13300,7 @@
       "src/core/channel/noop_filter.h", 
       "src/core/client_config/client_config.h", 
       "src/core/client_config/connector.h", 
+      "src/core/client_config/initial_connect_string.h", 
       "src/core/client_config/lb_policies/pick_first.h", 
       "src/core/client_config/lb_policies/round_robin.h", 
       "src/core/client_config/lb_policy.h", 
@@ -13456,6 +13457,9 @@
       "src/core/client_config/client_config.h", 
       "src/core/client_config/connector.c", 
       "src/core/client_config/connector.h", 
+      "src/core/client_config/default_initial_connect_string.c", 
+      "src/core/client_config/initial_connect_string.c", 
+      "src/core/client_config/initial_connect_string.h", 
       "src/core/client_config/lb_policies/pick_first.c", 
       "src/core/client_config/lb_policies/pick_first.h", 
       "src/core/client_config/lb_policies/round_robin.c", 
@@ -13809,6 +13813,7 @@
       "src/core/channel/noop_filter.h", 
       "src/core/client_config/client_config.h", 
       "src/core/client_config/connector.h", 
+      "src/core/client_config/initial_connect_string.h", 
       "src/core/client_config/lb_policies/pick_first.h", 
       "src/core/client_config/lb_policies/round_robin.h", 
       "src/core/client_config/lb_policy.h", 
@@ -13951,6 +13956,9 @@
       "src/core/client_config/client_config.h", 
       "src/core/client_config/connector.c", 
       "src/core/client_config/connector.h", 
+      "src/core/client_config/default_initial_connect_string.c", 
+      "src/core/client_config/initial_connect_string.c", 
+      "src/core/client_config/initial_connect_string.h", 
       "src/core/client_config/lb_policies/pick_first.c", 
       "src/core/client_config/lb_policies/pick_first.h", 
       "src/core/client_config/lb_policies/round_robin.c", 

vsprojects/vcxproj/grpc/grpc.vcxproj

@@ -279,6 +279,7 @@
     <ClInclude Include="..\..\..\src\core\channel\noop_filter.h" />
     <ClInclude Include="..\..\..\src\core\client_config\client_config.h" />
     <ClInclude Include="..\..\..\src\core\client_config\connector.h" />
+    <ClInclude Include="..\..\..\src\core\client_config\initial_connect_string.h" />
     <ClInclude Include="..\..\..\src\core\client_config\lb_policies\pick_first.h" />
     <ClInclude Include="..\..\..\src\core\client_config\lb_policies\round_robin.h" />
     <ClInclude Include="..\..\..\src\core\client_config\lb_policy.h" />
@@ -451,6 +452,10 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\connector.c">
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\default_initial_connect_string.c">
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\initial_connect_string.c">
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\lb_policies\pick_first.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\lb_policies\round_robin.c">

vsprojects/vcxproj/grpc/grpc.vcxproj.filters

@@ -103,6 +103,12 @@
     <ClCompile Include="..\..\..\src\core\client_config\connector.c">
       <Filter>src\core\client_config</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\default_initial_connect_string.c">
+      <Filter>src\core\client_config</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\initial_connect_string.c">
+      <Filter>src\core\client_config</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\lb_policies\pick_first.c">
       <Filter>src\core\client_config\lb_policies</Filter>
     </ClCompile>
@@ -548,6 +554,9 @@
     <ClInclude Include="..\..\..\src\core\client_config\connector.h">
       <Filter>src\core\client_config</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\src\core\client_config\initial_connect_string.h">
+      <Filter>src\core\client_config</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\src\core\client_config\lb_policies\pick_first.h">
       <Filter>src\core\client_config\lb_policies</Filter>
     </ClInclude>

vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj

@@ -258,6 +258,7 @@
     <ClInclude Include="..\..\..\src\core\channel\noop_filter.h" />
     <ClInclude Include="..\..\..\src\core\client_config\client_config.h" />
     <ClInclude Include="..\..\..\src\core\client_config\connector.h" />
+    <ClInclude Include="..\..\..\src\core\client_config\initial_connect_string.h" />
     <ClInclude Include="..\..\..\src\core\client_config\lb_policies\pick_first.h" />
     <ClInclude Include="..\..\..\src\core\client_config\lb_policies\round_robin.h" />
     <ClInclude Include="..\..\..\src\core\client_config\lb_policy.h" />
@@ -390,6 +391,10 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\connector.c">
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\default_initial_connect_string.c">
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\initial_connect_string.c">
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\lb_policies\pick_first.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\lb_policies\round_robin.c">

vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters

@@ -43,6 +43,12 @@
     <ClCompile Include="..\..\..\src\core\client_config\connector.c">
       <Filter>src\core\client_config</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\default_initial_connect_string.c">
+      <Filter>src\core\client_config</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\initial_connect_string.c">
+      <Filter>src\core\client_config</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\lb_policies\pick_first.c">
       <Filter>src\core\client_config\lb_policies</Filter>
     </ClCompile>
@@ -446,6 +452,9 @@
     <ClInclude Include="..\..\..\src\core\client_config\connector.h">
       <Filter>src\core\client_config</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\src\core\client_config\initial_connect_string.h">
+      <Filter>src\core\client_config</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\src\core\client_config\lb_policies\pick_first.h">
       <Filter>src\core\client_config\lb_policies</Filter>
     </ClInclude>