GPR_EXPORT grpc_channel_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, NULL);
} else {
GPR_ASSERT(!key_cert_pair_cert_chain);
GPR_ASSERT(!key_cert_pair_private_key);
return grpc_ssl_credentials_create(pem_root_certs, NULL, NULL);
}
}
static void test_ssl_oauth2_iam_composite_creds(void) {
grpc_credentials *ssl_creds =
grpc_ssl_credentials_create(test_root_cert, NULL);
const grpc_credentials_array *creds_array;
grpc_credentials *oauth2_creds =
grpc_fake_oauth2_credentials_create(test_oauth2_bearer_token, 0);
grpc_credentials *aux_creds =
grpc_composite_credentials_create(ssl_creds, oauth2_creds);
grpc_credentials *iam_creds = grpc_iam_credentials_create(
test_iam_authorization_token, test_iam_authority_selector);
grpc_credentials *composite_creds =
grpc_composite_credentials_create(aux_creds, iam_creds);
grpc_credentials_unref(ssl_creds);
grpc_credentials_unref(oauth2_creds);
grpc_credentials_unref(aux_creds);
grpc_credentials_unref(iam_creds);
GPR_ASSERT(strcmp(composite_creds->type, GRPC_CREDENTIALS_TYPE_COMPOSITE) ==
0);
GPR_ASSERT(grpc_credentials_has_request_metadata(composite_creds));
GPR_ASSERT(!grpc_credentials_has_request_metadata_only(composite_creds));
creds_array = grpc_composite_credentials_get_credentials(composite_creds);
GPR_ASSERT(creds_array->num_creds == 3);
GPR_ASSERT(strcmp(creds_array->creds_array[0]->type,
GRPC_CREDENTIALS_TYPE_SSL) == 0);
GPR_ASSERT(strcmp(creds_array->creds_array[1]->type,
GRPC_CREDENTIALS_TYPE_OAUTH2) == 0);
GPR_ASSERT(strcmp(creds_array->creds_array[2]->type,
GRPC_CREDENTIALS_TYPE_IAM) == 0);
grpc_credentials_get_request_metadata(composite_creds, NULL, test_service_url,
check_ssl_oauth2_iam_composite_metadata,
composite_creds);
}
GPR_EXPORT grpc_channel_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,
void* verify_peer_callback_tag) {
grpc_ssl_pem_key_cert_pair key_cert_pair;
verify_peer_options verify_options;
grpc_ssl_pem_key_cert_pair* key_cert_pair_ptr = NULL;
verify_peer_options* verify_options_ptr = NULL;
if (key_cert_pair_cert_chain || key_cert_pair_private_key) {
memset(&key_cert_pair, 0, sizeof(key_cert_pair));
key_cert_pair.cert_chain = key_cert_pair_cert_chain;
key_cert_pair.private_key = key_cert_pair_private_key;
key_cert_pair_ptr = &key_cert_pair;
} else {
GPR_ASSERT(!key_cert_pair_cert_chain);
GPR_ASSERT(!key_cert_pair_private_key);
}
if (verify_peer_callback_tag != NULL) {
memset(&verify_options, 0, sizeof(verify_peer_options));
verify_options.verify_peer_callback_userdata = verify_peer_callback_tag;
verify_options.verify_peer_destruct = grpcsharp_verify_peer_destroy_handler;
verify_options.verify_peer_callback = grpcsharp_verify_peer_handler;
verify_options_ptr = &verify_options;
}
return grpc_ssl_credentials_create(pem_root_certs, key_cert_pair_ptr,
verify_options_ptr, NULL);
}
grpc_channel_credentials *grpc_google_default_credentials_create(void) {
grpc_channel_credentials *result = NULL;
grpc_call_credentials *call_creds = NULL;
GRPC_API_TRACE("grpc_google_default_credentials_create(void)", 0, ());
gpr_once_init(&g_once, init_default_credentials);
gpr_mu_lock(&g_mu);
if (default_credentials != NULL) {
result = grpc_channel_credentials_ref(default_credentials);
goto end;
}
/* First, try the environment variable. */
call_creds = create_default_creds_from_path(
gpr_getenv(GRPC_GOOGLE_CREDENTIALS_ENV_VAR));
if (call_creds != NULL) goto end;
/* Then the well-known file. */
call_creds = create_default_creds_from_path(
grpc_get_well_known_google_credentials_file_path());
if (call_creds != NULL) goto end;
/* At last try to see if we're on compute engine (do the detection only once
since it requires a network test). */
if (!compute_engine_detection_done) {
int need_compute_engine_creds = is_stack_running_on_compute_engine();
compute_engine_detection_done = 1;
if (need_compute_engine_creds) {
call_creds = grpc_google_compute_engine_credentials_create(NULL);
}
}
end:
if (result == NULL) {
if (call_creds != NULL) {
/* Blend with default ssl credentials and add a global reference so that
it
can be cached and re-served. */
grpc_channel_credentials *ssl_creds =
grpc_ssl_credentials_create(NULL, NULL, NULL);
default_credentials = grpc_channel_credentials_ref(
grpc_composite_channel_credentials_create(ssl_creds, call_creds,
NULL));
GPR_ASSERT(default_credentials != NULL);
grpc_channel_credentials_unref(ssl_creds);
grpc_call_credentials_unref(call_creds);
result = default_credentials;
} else {
gpr_log(GPR_ERROR, "Could not create google default credentials.");
}
}
gpr_mu_unlock(&g_mu);
return result;
}
void test_ssl_fake_transport_security_composite_creds_failure(void) {
grpc_credentials *ssl_creds = grpc_ssl_credentials_create(NULL, NULL);
grpc_credentials *fake_transport_security_creds =
grpc_fake_transport_security_credentials_create();
/* 2 connector credentials: should not work. */
GPR_ASSERT(grpc_composite_credentials_create(
ssl_creds, fake_transport_security_creds) == NULL);
grpc_credentials_unref(ssl_creds);
grpc_credentials_unref(fake_transport_security_creds);
}
static void chttp2_init_client_simple_ssl_secure_fullstack(
grpc_end2end_test_fixture *f, grpc_channel_args *client_args) {
grpc_credentials *ssl_creds = grpc_ssl_credentials_create(NULL, NULL);
grpc_arg ssl_name_override = {GRPC_ARG_STRING,
GRPC_SSL_TARGET_NAME_OVERRIDE_ARG,
{"foo.test.google.fr"}};
grpc_channel_args *new_client_args =
grpc_channel_args_copy_and_add(client_args, &ssl_name_override, 1);
chttp2_init_client_secure_fullstack(f, new_client_args, ssl_creds);
grpc_channel_args_destroy(new_client_args);
}
/*
call-seq:
creds1 = Credentials.new()
...
creds2 = Credentials.new(pem_root_certs)
...
creds3 = Credentials.new(pem_root_certs, pem_private_key,
pem_cert_chain)
pem_root_certs: (optional) PEM encoding of the server root certificate
pem_private_key: (optional) PEM encoding of the client's private key
pem_cert_chain: (optional) PEM encoding of the client's cert chain
Initializes Credential instances. */
static VALUE grpc_rb_channel_credentials_init(int argc, VALUE* argv,
VALUE self) {
VALUE pem_root_certs = Qnil;
VALUE pem_private_key = Qnil;
VALUE pem_cert_chain = Qnil;
grpc_rb_channel_credentials* wrapper = NULL;
grpc_channel_credentials* creds = NULL;
grpc_ssl_pem_key_cert_pair key_cert_pair;
const char* pem_root_certs_cstr = NULL;
MEMZERO(&key_cert_pair, grpc_ssl_pem_key_cert_pair, 1);
/* "03" == no mandatory arg, 3 optional */
rb_scan_args(argc, argv, "03", &pem_root_certs, &pem_private_key,
&pem_cert_chain);
TypedData_Get_Struct(self, grpc_rb_channel_credentials,
&grpc_rb_channel_credentials_data_type, wrapper);
if (pem_root_certs != Qnil) {
pem_root_certs_cstr = RSTRING_PTR(pem_root_certs);
}
if (pem_private_key == Qnil && pem_cert_chain == Qnil) {
creds = grpc_ssl_credentials_create(pem_root_certs_cstr, NULL, NULL, NULL);
} else {
key_cert_pair.private_key = RSTRING_PTR(pem_private_key);
key_cert_pair.cert_chain = RSTRING_PTR(pem_cert_chain);
creds = grpc_ssl_credentials_create(pem_root_certs_cstr, &key_cert_pair,
NULL, NULL);
}
if (creds == NULL) {
rb_raise(rb_eRuntimeError, "could not create a credentials, not sure why");
return Qnil;
}
wrapper->wrapped = creds;
/* Add the input objects as hidden fields to preserve them. */
rb_ivar_set(self, id_pem_cert_chain, pem_cert_chain);
rb_ivar_set(self, id_pem_private_key, pem_private_key);
rb_ivar_set(self, id_pem_root_certs, pem_root_certs);
return self;
}
/*
call-seq:
creds1 = Credentials.new(pem_root_certs)
...
creds2 = Credentials.new(pem_root_certs, pem_private_key,
pem_cert_chain)
pem_root_certs: (required) PEM encoding of the server root certificate
pem_private_key: (optional) PEM encoding of the client's private key
pem_cert_chain: (optional) PEM encoding of the client's cert chain
Initializes Credential instances. */
static VALUE grpc_rb_credentials_init(int argc, VALUE *argv, VALUE self) {
VALUE pem_root_certs = Qnil;
VALUE pem_private_key = Qnil;
VALUE pem_cert_chain = Qnil;
grpc_rb_credentials *wrapper = NULL;
grpc_credentials *creds = NULL;
grpc_ssl_pem_key_cert_pair key_cert_pair;
MEMZERO(&key_cert_pair, grpc_ssl_pem_key_cert_pair, 1);
/* TODO: Remove mandatory arg when we support default roots. */
/* "12" == 1 mandatory arg, 2 (credentials) is optional */
rb_scan_args(argc, argv, "12", &pem_root_certs, &pem_private_key,
&pem_cert_chain);
Data_Get_Struct(self, grpc_rb_credentials, wrapper);
if (pem_root_certs == Qnil) {
rb_raise(rb_eRuntimeError,
"could not create a credential: nil pem_root_certs");
return Qnil;
}
if (pem_private_key == Qnil && pem_cert_chain == Qnil) {
creds = grpc_ssl_credentials_create(RSTRING_PTR(pem_root_certs), NULL);
} else {
key_cert_pair.private_key = RSTRING_PTR(pem_private_key);
key_cert_pair.cert_chain = RSTRING_PTR(pem_cert_chain);
creds = grpc_ssl_credentials_create(
RSTRING_PTR(pem_root_certs), &key_cert_pair);
}
if (creds == NULL) {
rb_raise(rb_eRuntimeError, "could not create a credentials, not sure why");
return Qnil;
}
wrapper->wrapped = creds;
/* Add the input objects as hidden fields to preserve them. */
rb_ivar_set(self, id_pem_cert_chain, pem_cert_chain);
rb_ivar_set(self, id_pem_private_key, pem_private_key);
rb_ivar_set(self, id_pem_root_certs, pem_root_certs);
return self;
}
static grpc_channel *create_proxy_client(const char *target) {
grpc_channel *channel;
grpc_credentials *ssl_creds = grpc_ssl_credentials_create(NULL, NULL);
grpc_arg ssl_name_override = {GRPC_ARG_STRING,
GRPC_SSL_TARGET_NAME_OVERRIDE_ARG,
{"foo.test.google.fr"}};
grpc_channel_args client_args;
client_args.num_args = 1;
client_args.args = &ssl_name_override;
channel = grpc_secure_channel_create(ssl_creds, target, &client_args);
grpc_credentials_release(ssl_creds);
return channel;
}
static grpc_channel *create_proxy_client(const char *target,
grpc_channel_args *client_args) {
grpc_channel *channel;
grpc_channel_credentials *ssl_creds =
grpc_ssl_credentials_create(NULL, NULL, NULL);
grpc_arg ssl_name_override = {GRPC_ARG_STRING,
GRPC_SSL_TARGET_NAME_OVERRIDE_ARG,
{"foo.test.google.fr"}};
grpc_channel_args *new_client_args =
grpc_channel_args_copy_and_add(client_args, &ssl_name_override, 1);
channel =
grpc_secure_channel_create(ssl_creds, target, new_client_args, NULL);
grpc_channel_credentials_release(ssl_creds);
grpc_channel_args_destroy(new_client_args);
return channel;
}
grpc_credentials *grpc_google_default_credentials_create(void) {
grpc_credentials *result = NULL;
int serving_cached_credentials = 0;
gpr_once_init(&g_once, init_default_credentials);
gpr_mu_lock(&g_mu);
if (default_credentials != NULL) {
result = grpc_credentials_ref(default_credentials);
serving_cached_credentials = 1;
goto end;
}
/* First, try the environment variable. */
result =
create_jwt_creds_from_path(gpr_getenv(GRPC_GOOGLE_CREDENTIALS_ENV_VAR));
if (result != NULL) goto end;
/* Then the well-known file. */
result = create_refresh_token_creds_from_path(
grpc_get_well_known_google_credentials_file_path());
if (result != NULL) goto end;
/* At last try to see if we're on compute engine (do the detection only once
since it requires a network test). */
if (!compute_engine_detection_done) {
int need_compute_engine_creds = is_stack_running_on_compute_engine();
compute_engine_detection_done = 1;
if (need_compute_engine_creds) {
result = grpc_compute_engine_credentials_create();
}
}
end:
if (!serving_cached_credentials && result != NULL) {
/* Blend with default ssl credentials and add a global reference so that it
can be cached and re-served. */
result = grpc_composite_credentials_create(
grpc_ssl_credentials_create(NULL, NULL), result);
GPR_ASSERT(result != NULL);
default_credentials = grpc_credentials_ref(result);
}
gpr_mu_unlock(&g_mu);
return result;
}
static void chttp2_init_client_simple_ssl_with_oauth2_secure_fullstack(
grpc_end2end_test_fixture *f, grpc_channel_args *client_args) {
grpc_credentials *ssl_creds =
grpc_ssl_credentials_create(test_root_cert, NULL);
grpc_credentials *oauth2_creds =
grpc_fake_oauth2_credentials_create("Bearer aaslkfjs424535asdf", 1);
grpc_credentials *ssl_oauth2_creds =
grpc_composite_credentials_create(ssl_creds, oauth2_creds);
grpc_arg ssl_name_override = {GRPC_ARG_STRING,
GRPC_SSL_TARGET_NAME_OVERRIDE_ARG,
{"foo.test.google.fr"}};
grpc_channel_args *new_client_args =
grpc_channel_args_copy_and_add(client_args, &ssl_name_override);
chttp2_init_client_secure_fullstack(f, new_client_args, ssl_oauth2_creds);
grpc_channel_args_destroy(new_client_args);
grpc_credentials_release(ssl_creds);
grpc_credentials_release(oauth2_creds);
}
static void run_test(const char *target, size_t nops) {
grpc_channel_credentials *ssl_creds =
grpc_ssl_credentials_create(NULL, NULL, NULL);
grpc_channel *channel;
grpc_call *c;
grpc_metadata_array initial_metadata_recv;
grpc_metadata_array trailing_metadata_recv;
char *details = NULL;
size_t details_capacity = 0;
grpc_status_code status;
grpc_call_error error;
gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5);
grpc_completion_queue *cq = grpc_completion_queue_create(NULL);
cq_verifier *cqv = cq_verifier_create(cq);
grpc_op ops[6];
grpc_op *op;
grpc_arg ssl_name_override = {GRPC_ARG_STRING,
GRPC_SSL_TARGET_NAME_OVERRIDE_ARG,
{"foo.test.google.fr"}
};
grpc_channel_args args;
args.num_args = 1;
args.args = &ssl_name_override;
grpc_metadata_array_init(&initial_metadata_recv);
grpc_metadata_array_init(&trailing_metadata_recv);
channel = grpc_secure_channel_create(ssl_creds, target, &args, NULL);
c = grpc_channel_create_call(channel, NULL, GRPC_PROPAGATE_DEFAULTS, cq,
"/foo", "foo.test.google.fr:1234", deadline,
NULL);
op = ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
op->data.send_initial_metadata.count = 0;
op->flags = 0;
op->reserved = NULL;
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->flags = 0;
op->reserved = NULL;
op++;
op->op = GRPC_OP_RECV_INITIAL_METADATA;
op->data.recv_initial_metadata = &initial_metadata_recv;
op->flags = 0;
op->reserved = NULL;
op++;
op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
op->flags = 0;
op->reserved = NULL;
op++;
error = grpc_call_start_batch(c, ops, nops, tag(1), NULL);
GPR_ASSERT(GRPC_CALL_OK == error);
cq_expect_completion(cqv, tag(1), 1);
cq_verify(cqv);
GPR_ASSERT(status != GRPC_STATUS_OK);
grpc_call_destroy(c);
gpr_free(details);
grpc_metadata_array_destroy(&initial_metadata_recv);
grpc_metadata_array_destroy(&trailing_metadata_recv);
grpc_channel_destroy(channel);
grpc_completion_queue_destroy(cq);
cq_verifier_destroy(cqv);
grpc_channel_credentials_release(ssl_creds);
}
grpc_channel_credentials *grpc_google_default_credentials_create(void) {
grpc_channel_credentials *result = NULL;
grpc_call_credentials *call_creds = NULL;
grpc_error *error = GRPC_ERROR_CREATE("Failed to create Google credentials");
grpc_error *err;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
GRPC_API_TRACE("grpc_google_default_credentials_create(void)", 0, ());
gpr_once_init(&g_once, init_default_credentials);
gpr_mu_lock(&g_state_mu);
if (default_credentials != NULL) {
result = grpc_channel_credentials_ref(default_credentials);
goto end;
}
/* First, try the environment variable. */
err = create_default_creds_from_path(
&exec_ctx, gpr_getenv(GRPC_GOOGLE_CREDENTIALS_ENV_VAR), &call_creds);
if (err == GRPC_ERROR_NONE) goto end;
error = grpc_error_add_child(error, err);
/* Then the well-known file. */
err = create_default_creds_from_path(
&exec_ctx, grpc_get_well_known_google_credentials_file_path(),
&call_creds);
if (err == GRPC_ERROR_NONE) goto end;
error = grpc_error_add_child(error, err);
/* At last try to see if we're on compute engine (do the detection only once
since it requires a network test). */
if (!compute_engine_detection_done) {
int need_compute_engine_creds =
is_stack_running_on_compute_engine(&exec_ctx);
compute_engine_detection_done = 1;
if (need_compute_engine_creds) {
call_creds = grpc_google_compute_engine_credentials_create(NULL);
if (call_creds == NULL) {
error = grpc_error_add_child(
error, GRPC_ERROR_CREATE("Failed to get credentials from network"));
}
}
}
end:
if (result == NULL) {
if (call_creds != NULL) {
/* Blend with default ssl credentials and add a global reference so that
it
can be cached and re-served. */
grpc_channel_credentials *ssl_creds =
grpc_ssl_credentials_create(NULL, NULL, NULL);
default_credentials = grpc_channel_credentials_ref(
grpc_composite_channel_credentials_create(ssl_creds, call_creds,
NULL));
GPR_ASSERT(default_credentials != NULL);
grpc_channel_credentials_unref(&exec_ctx, ssl_creds);
grpc_call_credentials_unref(&exec_ctx, call_creds);
result = default_credentials;
} else {
gpr_log(GPR_ERROR, "Could not create google default credentials.");
}
}
gpr_mu_unlock(&g_state_mu);
if (result == NULL) {
GRPC_LOG_IF_ERROR("grpc_google_default_credentials_create", error);
} else {
GRPC_ERROR_UNREF(error);
}
grpc_exec_ctx_finish(&exec_ctx);
return result;
}
// This test launches a minimal TLS server on a separate thread and then
// establishes a TLS handshake via the core library to the server. The TLS
// server validates ALPN aspects of the handshake and supplies the protocol
// specified in the server_alpn_preferred argument to the client.
static bool client_ssl_test(char *server_alpn_preferred) {
bool success = true;
grpc_init();
// Find a port we can bind to. Retries added to handle flakes in port server
// and port picking.
int port = -1;
int server_socket = -1;
int socket_retries = 10;
while (server_socket == -1 && socket_retries-- > 0) {
port = grpc_pick_unused_port_or_die();
server_socket = create_socket(port);
if (server_socket == -1) {
sleep(1);
}
}
GPR_ASSERT(server_socket > 0);
// Launch the TLS server thread.
gpr_thd_options thdopt = gpr_thd_options_default();
gpr_thd_id thdid;
gpr_thd_options_set_joinable(&thdopt);
server_args args = {.socket = server_socket,
.alpn_preferred = server_alpn_preferred};
GPR_ASSERT(gpr_thd_new(&thdid, server_thread, &args, &thdopt));
// Load key pair and establish client SSL credentials.
grpc_ssl_pem_key_cert_pair pem_key_cert_pair;
gpr_slice ca_slice, cert_slice, key_slice;
GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
grpc_load_file(SSL_CA_PATH, 1, &ca_slice)));
GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
grpc_load_file(SSL_CERT_PATH, 1, &cert_slice)));
GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
grpc_load_file(SSL_KEY_PATH, 1, &key_slice)));
const char *ca_cert = (const char *)GPR_SLICE_START_PTR(ca_slice);
pem_key_cert_pair.private_key = (const char *)GPR_SLICE_START_PTR(key_slice);
pem_key_cert_pair.cert_chain = (const char *)GPR_SLICE_START_PTR(cert_slice);
grpc_channel_credentials *ssl_creds =
grpc_ssl_credentials_create(ca_cert, &pem_key_cert_pair, NULL);
// Establish a channel pointing at the TLS server. Since the gRPC runtime is
// lazy, this won't necessarily establish a connection yet.
char *target;
gpr_asprintf(&target, "127.0.0.1:%d", port);
grpc_arg ssl_name_override = {GRPC_ARG_STRING,
GRPC_SSL_TARGET_NAME_OVERRIDE_ARG,
{"foo.test.google.fr"}};
grpc_channel_args grpc_args;
grpc_args.num_args = 1;
grpc_args.args = &ssl_name_override;
grpc_channel *channel =
grpc_secure_channel_create(ssl_creds, target, &grpc_args, NULL);
GPR_ASSERT(channel);
gpr_free(target);
// Initially the channel will be idle, the
// grpc_channel_check_connectivity_state triggers an attempt to connect.
GPR_ASSERT(grpc_channel_check_connectivity_state(
channel, 1 /* try_to_connect */) == GRPC_CHANNEL_IDLE);
// Wait a bounded number of times for the channel to be ready. When the
// channel is ready, the initial TLS handshake will have successfully
// completed and we know that the client's ALPN list satisfied the server.
int retries = 10;
grpc_connectivity_state state = GRPC_CHANNEL_IDLE;
grpc_completion_queue *cq = grpc_completion_queue_create(NULL);
while (state != GRPC_CHANNEL_READY && retries-- > 0) {
grpc_channel_watch_connectivity_state(
channel, state, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), cq, NULL);
gpr_timespec cq_deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5);
grpc_event ev = grpc_completion_queue_next(cq, cq_deadline, NULL);
GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
state =
grpc_channel_check_connectivity_state(channel, 0 /* try_to_connect */);
}
grpc_completion_queue_destroy(cq);
if (retries < 0) {
success = false;
}
grpc_channel_destroy(channel);
grpc_channel_credentials_release(ssl_creds);
gpr_slice_unref(cert_slice);
gpr_slice_unref(key_slice);
gpr_slice_unref(ca_slice);
gpr_thd_join(thdid);
grpc_shutdown();
return success;
}
