| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <fbl/algorithm.h> |
| #include <lib/async-loop/cpp/loop.h> |
| #include <lib/crashanalyzer/crashanalyzer.h> |
| #include <lib/fdio/util.h> |
| #include <lib/process-launcher/launcher.h> |
| #include <lib/svc/outgoing.h> |
| #include <zircon/process.h> |
| #include <zircon/processargs.h> |
| #include <zircon/status.h> |
| |
| // An instance of a zx_service_provider_t. |
| // |
| // Includes the |ctx| pointer for the zx_service_provider_t. |
| typedef struct zx_service_provider_instance { |
| // The service provider for which this structure is an instance. |
| const zx_service_provider_t* provider; |
| |
| // The |ctx| pointer returned by the provider's |init| function, if any. |
| void* ctx; |
| } zx_service_provider_instance_t; |
| |
| static zx_status_t provider_init(zx_service_provider_instance_t* instance) { |
| if (instance->provider->ops->init) { |
| zx_status_t status = instance->provider->ops->init(&instance->ctx); |
| if (status != ZX_OK) |
| return status; |
| } |
| return ZX_OK; |
| } |
| |
| static zx_status_t provider_publish(zx_service_provider_instance_t* instance, |
| async_t* async, const fbl::RefPtr<fs::PseudoDir>& dir) { |
| const zx_service_provider_t* provider = instance->provider; |
| |
| if (!provider->services || !provider->ops->connect) |
| return ZX_ERR_INVALID_ARGS; |
| |
| for (size_t i = 0; provider->services[i]; ++i) { |
| const char* service_name = provider->services[i]; |
| zx_status_t status = dir->AddEntry( |
| service_name, |
| fbl::MakeRefCounted<fs::Service>([instance, async, service_name](zx::channel request) { |
| return instance->provider->ops->connect(instance->ctx, async, service_name, request.release()); |
| })); |
| if (status != ZX_OK) { |
| for (size_t j = 0; j < i; ++j) |
| dir->RemoveEntry(provider->services[j]); |
| return status; |
| } |
| } |
| |
| return ZX_OK; |
| } |
| |
| static void provider_release(zx_service_provider_instance_t* instance) { |
| if (instance->provider->ops->release) |
| instance->provider->ops->release(instance->ctx); |
| instance->ctx = nullptr; |
| } |
| |
| static zx_status_t provider_load(zx_service_provider_instance_t* instance, |
| async_t* async, const fbl::RefPtr<fs::PseudoDir>& dir) { |
| if (instance->provider->version != SERVICE_PROVIDER_VERSION) { |
| return ZX_ERR_INVALID_ARGS; |
| } |
| |
| zx_status_t status = provider_init(instance); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| status = provider_publish(instance, async, dir); |
| if (status != ZX_OK) { |
| provider_release(instance); |
| return status; |
| } |
| |
| return ZX_OK; |
| } |
| |
| static zx_handle_t appmgr_svc; |
| |
| // We should host the tracelink service ourselves instead of routing the request |
| // to appmgr. |
| zx_status_t publish_tracelink(const fbl::RefPtr<fs::PseudoDir>& dir) { |
| const char* service_name = "fuchsia.tracelink.Registry"; |
| return dir->AddEntry( |
| service_name, |
| fbl::MakeRefCounted<fs::Service>([service_name](zx::channel request) { |
| return fdio_service_connect_at(appmgr_svc, service_name, request.release()); |
| })); |
| } |
| |
| // We shouldn't need to access these non-Zircon services from svchost, but |
| // currently some tests assume they can reach these services from the test |
| // environment. Instead, we should make the test environment hermetic and |
| // remove the dependencies on these services. |
| static constexpr const char* deprecated_services[] = { |
| // remove amber.Control when CP-50 is resolved |
| "amber.Control", |
| "fuchsia.cobalt.CobaltEncoderFactory", |
| "fuchsia.devicesettings.DeviceSettingsManager", |
| "fuchsia.logger.Log", |
| "fuchsia.logger.LogSink", |
| "fuchsia.media.Audio", |
| "fuchsia.mediaplayer.MediaPlayer", |
| "fuchsia.netstack.Netstack", |
| "fuchsia.power.PowerManager", |
| "fuchsia.sys.Environment", |
| "fuchsia.sys.Launcher", |
| "fuchsia.wlan.service.Wlan", |
| // fdio name for Netstack. Will be removed with the new interfaces defined |
| // in NET-863. |
| "net.Netstack", |
| nullptr, |
| // DO NOT ADD MORE ENTRIES TO THIS LIST. |
| // Tests should not be accessing services from the environment. Instead, |
| // they should run in containers that have their own service instances. |
| }; |
| |
| void publish_deprecated_services(const fbl::RefPtr<fs::PseudoDir>& dir) { |
| for (size_t i = 0; deprecated_services[i]; ++i) { |
| const char* service_name = deprecated_services[i]; |
| dir->AddEntry( |
| service_name, |
| fbl::MakeRefCounted<fs::Service>([service_name](zx::channel request) { |
| fprintf(stderr, "svchost: warning: Using deprecated path to %s.\n", service_name); |
| return fdio_service_connect_at(appmgr_svc, service_name, request.release()); |
| })); |
| } |
| } |
| |
| int main(int argc, char** argv) { |
| async::Loop loop; |
| async_t* async = loop.async(); |
| svc::Outgoing outgoing(async); |
| |
| appmgr_svc = zx_get_startup_handle(PA_HND(PA_USER0, 0)); |
| |
| zx_status_t status = outgoing.ServeFromStartupInfo(); |
| if (status != ZX_OK) { |
| fprintf(stderr, "svchost: error: Failed to serve outgoing directory: %d (%s).\n", |
| status, zx_status_get_string(status)); |
| return 1; |
| } |
| |
| zx_service_provider_instance_t service_providers[] = { |
| {.provider = launcher_get_service_provider(), .ctx = nullptr}, |
| {.provider = crashanalyzer_get_service_provider(), .ctx = nullptr}, |
| }; |
| |
| for (size_t i = 0; i < fbl::count_of(service_providers); ++i) { |
| status = provider_load(&service_providers[i], async, outgoing.public_dir()); |
| if (status != ZX_OK) { |
| fprintf(stderr, "svchost: error: Failed to load service provider %zu: %d (%s).\n", |
| i, status, zx_status_get_string(status)); |
| return 1; |
| } |
| } |
| |
| status = publish_tracelink(outgoing.public_dir()); |
| if (status != ZX_OK) { |
| fprintf(stderr, "svchost: error: Failed to publish tracelink: %d (%s).\n", |
| status, zx_status_get_string(status)); |
| return 1; |
| } |
| |
| publish_deprecated_services(outgoing.public_dir()); |
| |
| status = loop.Run(); |
| |
| for (size_t i = 0; i < fbl::count_of(service_providers); ++i) { |
| provider_release(&service_providers[i]); |
| } |
| |
| return status; |
| } |