| // 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 <lib/syslog/logger.h> |
| #include <lib/zx/socket.h> |
| |
| #include "export.h" |
| #include "fx_logger.h" |
| |
| #ifndef STATIC_LIBRARY |
| #include "fdio_connect.h" |
| #endif |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_logf(fx_logger_t* logger, fx_log_severity_t severity, const char* tag, |
| const char* format, ...) { |
| if (logger == nullptr) { |
| return ZX_ERR_BAD_STATE; |
| } |
| va_list args; |
| va_start(args, format); |
| zx_status_t s = logger->VLogWrite(severity, tag, format, args); |
| va_end(args); |
| return s; |
| } |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_logf_with_source(fx_logger_t* logger, fx_log_severity_t severity, |
| const char* tag, const char* file, int line, |
| const char* format, ...) { |
| if (!logger || !file || line <= 0) { |
| return ZX_ERR_INVALID_ARGS; |
| } |
| va_list args; |
| va_start(args, format); |
| zx_status_t s = logger->VLogWrite(severity, tag, format, args, file, line); |
| va_end(args); |
| return s; |
| } |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_log(fx_logger_t* logger, fx_log_severity_t severity, const char* tag, |
| const char* msg) { |
| if (logger == nullptr) { |
| return ZX_ERR_BAD_STATE; |
| } |
| return logger->LogWrite(severity, tag, msg); |
| } |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_log_with_source(fx_logger_t* logger, fx_log_severity_t severity, |
| const char* tag, const char* file, int line, |
| const char* msg) { |
| if (!logger || !file || line <= 0) { |
| return ZX_ERR_INVALID_ARGS; |
| } |
| return logger->LogWrite(severity, tag, msg, file, line); |
| } |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_logvf(fx_logger_t* logger, fx_log_severity_t severity, const char* tag, |
| const char* format, va_list args) { |
| if (logger == nullptr) { |
| return ZX_ERR_BAD_STATE; |
| } |
| return logger->VLogWrite(severity, tag, format, args); |
| } |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_logvf_with_source(fx_logger_t* logger, fx_log_severity_t severity, |
| const char* tag, const char* file, int line, |
| const char* format, va_list args) { |
| if (!logger || !file || line <= 0) { |
| return ZX_ERR_INVALID_ARGS; |
| } |
| return logger->VLogWrite(severity, tag, format, args, file, line); |
| } |
| |
| SYSLOG_EXPORT |
| fx_log_severity_t fx_logger_get_min_severity(fx_logger_t* logger) { |
| if (logger == nullptr) { |
| return FX_LOG_FATAL; |
| } |
| return logger->GetSeverity(); |
| } |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_set_min_severity(fx_logger_t* logger, fx_log_severity_t severity) { |
| return logger->SetSeverity(severity); |
| } |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_get_connection_status(fx_logger_t* logger) { |
| return logger->GetLogConnectionStatus(); |
| } |
| |
| SYSLOG_EXPORT |
| void fx_logger_set_connection(fx_logger_t* logger, zx_handle_t handle) { |
| return logger->SetLogConnection(handle); |
| } |
| |
| SYSLOG_EXPORT |
| void fx_logger_activate_fallback(fx_logger_t* logger, int fallback_fd) { |
| logger->ActivateFallback(fallback_fd); |
| } |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_reconfigure(fx_logger_t* logger, const fx_logger_config_t* config) { |
| return logger->Reconfigure(config); |
| } |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_create_internal(const fx_logger_config_t* config, fx_logger_t** out_logger, |
| bool connect) { |
| // TODO(fxbug.dev/63529): Share the input checks and handle closing logic with |
| // fx_logger::Reconfigure(). |
| if (!config || !out_logger) { |
| return ZX_ERR_INVALID_ARGS; |
| } |
| |
| // TODO(fxbug.dev/63529): Rename all |log_service_channel| uses and remove. |
| ZX_ASSERT(config->log_sink_socket == ZX_HANDLE_INVALID || |
| config->log_service_channel == ZX_HANDLE_INVALID); |
| zx_handle_t log_sink_socket = (config->log_sink_socket != ZX_HANDLE_INVALID) |
| ? config->log_sink_socket |
| : config->log_service_channel; |
| |
| if ((config->num_tags > FX_LOG_MAX_TAGS) || |
| #ifndef SYSLOG_STATIC |
| (config->log_sink_channel != ZX_HANDLE_INVALID && log_sink_socket != ZX_HANDLE_INVALID) |
| #else |
| // |log_sink_channel| is not supported by SYSLOG_STATIC. |
| config->log_sink_channel != ZX_HANDLE_INVALID |
| #endif |
| ) { |
| if (config->log_sink_channel != ZX_HANDLE_INVALID) { |
| zx_handle_close(config->log_sink_channel); |
| } |
| if (log_sink_socket != ZX_HANDLE_INVALID) { |
| zx_handle_close(log_sink_socket); |
| } |
| return ZX_ERR_INVALID_ARGS; |
| } |
| |
| fx_logger_config_t c = *config; |
| // In the SYSLOG_STATIC mode, we cannot connect to the logging service. We |
| // should continue to instantiate the logger (which defaults to using stderr) |
| // and the client can provide the appropriate channel / fd later. |
| #ifndef SYSLOG_STATIC |
| if (connect && config->console_fd == -1 && config->log_sink_channel == ZX_HANDLE_INVALID && |
| log_sink_socket == ZX_HANDLE_INVALID) { |
| zx::socket sock = connect_to_logger(); |
| if (sock.is_valid()) { |
| c.log_sink_socket = sock.release(); |
| // For simplicity, the line above sets the value to the new name regardless of where it came |
| // from. Ensure that the old name is invalid in case the value came from it. |
| // TODO(fxbug.dev/63529): Rename all |log_service_channel| uses and remove this line, which |
| // ensures only one of these is set. |
| c.log_service_channel = ZX_HANDLE_INVALID; |
| } |
| } |
| #endif |
| *out_logger = new fx_logger(&c); |
| return ZX_OK; |
| } |
| |
| SYSLOG_EXPORT |
| zx_status_t fx_logger_create(const fx_logger_config_t* config, fx_logger_t** out_logger) { |
| return fx_logger_create_internal(config, out_logger, true); |
| } |
| |
| SYSLOG_EXPORT |
| void fx_logger_destroy(fx_logger_t* logger) { delete logger; } |