+/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdlib.h>
-#include <sys/signalfd.h>
-#include <sys/socket.h>
#include <syslog.h>
-#include "sd-id128.h"
-
#include "macro.h"
+/* Some structures we reference but don't want to pull in headers for */
+struct iovec;
+struct signalfd_siginfo;
+
typedef enum LogRealm {
LOG_REALM_SYSTEMD,
LOG_REALM_UDEV,
LOG_TARGET_SYSLOG,
LOG_TARGET_SYSLOG_OR_KMSG,
LOG_TARGET_AUTO, /* console if stderr is tty, JOURNAL_OR_KMSG otherwise */
- LOG_TARGET_SAFE, /* console if stderr is tty, KMSG otherwise */
LOG_TARGET_NULL,
_LOG_TARGET_MAX,
_LOG_TARGET_INVALID = -1
void log_forget_fds(void);
#endif // 0
-void log_close_syslog(void);
-void log_close_journal(void);
-void log_close_kmsg(void);
-void log_close_console(void);
-
void log_parse_environment_realm(LogRealm realm);
#define log_parse_environment() \
log_parse_environment_realm(LOG_REALM)
const char *extra,
const char *format, ...) _printf_(10,11);
-int log_object_internalv(
- int level,
- int error,
- const char *file,
- int line,
- const char *func,
- const char *object_field,
- const char *object,
- const char *extra_field,
- const char *extra,
- const char *format,
- va_list ap) _printf_(10,0);
-
int log_struct_internal(
int level,
int error,
int log_format_iovec(
struct iovec *iovec,
- unsigned iovec_len,
- unsigned *n,
+ size_t iovec_len,
+ size_t *n,
bool newline_separator,
int error,
const char *format,
va_list ap) _printf_(6, 0);
+int log_struct_iovec_internal(
+ int level,
+ int error,
+ const char *file,
+ int line,
+ const char *func,
+ const struct iovec *input_iovec,
+ size_t n_input_iovec);
+
/* This modifies the buffer passed! */
int log_dump_internal(
int level,
char *buffer);
/* Logging for various assertions */
-noreturn void log_assert_failed_realm(
+_noreturn_ void log_assert_failed_realm(
LogRealm realm,
const char *text,
const char *file,
#define log_assert_failed(text, ...) \
log_assert_failed_realm(LOG_REALM, (text), __VA_ARGS__)
-noreturn void log_assert_failed_unreachable_realm(
+_noreturn_ void log_assert_failed_unreachable_realm(
LogRealm realm,
const char *text,
const char *file,
/* Logging with level */
#define log_full_errno_realm(realm, level, error, ...) \
({ \
- int _level = (level), _e = (error); \
- (log_get_max_level_realm((realm)) >= LOG_PRI(_level)) \
- ? log_internal_realm(LOG_REALM_PLUS_LEVEL((realm), _level), _e, \
+ int _level = (level), _e = (error), _realm = (realm); \
+ (log_get_max_level_realm(_realm) >= LOG_PRI(_level)) \
+ ? log_internal_realm(LOG_REALM_PLUS_LEVEL(_realm, _level), _e, \
__FILE__, __LINE__, __func__, __VA_ARGS__) \
: -abs(_e); \
})
#define log_full(level, ...) log_full_errno((level), 0, __VA_ARGS__)
+int log_emergency_level(void);
+
/* Normal logging */
#define log_debug(...) log_full(LOG_DEBUG, __VA_ARGS__)
#define log_info(...) log_full(LOG_INFO, __VA_ARGS__)
#define log_notice(...) log_full(LOG_NOTICE, __VA_ARGS__)
#define log_warning(...) log_full(LOG_WARNING, __VA_ARGS__)
#define log_error(...) log_full(LOG_ERR, __VA_ARGS__)
-#define log_emergency(...) log_full(getpid_cached() == 1 ? LOG_EMERG : LOG_ERR, __VA_ARGS__)
+#define log_emergency(...) log_full(log_emergency_level(), __VA_ARGS__)
/* Logging triggered by an errno-like error */
#define log_debug_errno(error, ...) log_full_errno(LOG_DEBUG, error, __VA_ARGS__)
#define log_notice_errno(error, ...) log_full_errno(LOG_NOTICE, error, __VA_ARGS__)
#define log_warning_errno(error, ...) log_full_errno(LOG_WARNING, error, __VA_ARGS__)
#define log_error_errno(error, ...) log_full_errno(LOG_ERR, error, __VA_ARGS__)
-#define log_emergency_errno(error, ...) log_full_errno(getpid_cached() == 1 ? LOG_EMERG : LOG_ERR, error, __VA_ARGS__)
+#define log_emergency_errno(error, ...) log_full_errno(log_emergency_level(), error, __VA_ARGS__)
#ifdef LOG_TRACE
# define log_trace(...) log_debug(__VA_ARGS__)
# define log_trace(...) do {} while (0)
#endif
-#ifdef ENABLE_DEBUG_ELOGIND
+#if ENABLE_DEBUG_ELOGIND
# define log_debug_elogind(...) log_debug(__VA_ARGS__);usleep(25*USEC_PER_MSEC)
#else
# define log_debug_elogind(...) do {} while (0)
/* Structured logging */
#define log_struct_errno(level, error, ...) \
log_struct_internal(LOG_REALM_PLUS_LEVEL(LOG_REALM, level), \
- error, __FILE__, __LINE__, __func__, __VA_ARGS__)
+ error, __FILE__, __LINE__, __func__, __VA_ARGS__, NULL)
#define log_struct(level, ...) log_struct_errno(level, 0, __VA_ARGS__)
+#define log_struct_iovec_errno(level, error, iovec, n_iovec) \
+ log_struct_iovec_internal(LOG_REALM_PLUS_LEVEL(LOG_REALM, level), \
+ error, __FILE__, __LINE__, __func__, iovec, n_iovec)
+#define log_struct_iovec(level, iovec, n_iovec) log_struct_iovec_errno(level, 0, iovec, n_iovec)
+
/* This modifies the buffer passed! */
#define log_dump(level, buffer) \
log_dump_internal(LOG_REALM_PLUS_LEVEL(LOG_REALM, level), \
#if 0 /// UNNEEDED by elogind
void log_received_signal(int level, const struct signalfd_siginfo *si);
+/* If turned on, any requests for a log target involving "syslog" will be implicitly upgraded to the equivalent journal target */
void log_set_upgrade_syslog_to_journal(bool b);
+
+/* If turned on, and log_open() is called, we'll not use STDERR_FILENO for logging ever, but rather open /dev/console */
void log_set_always_reopen_console(bool b);
#endif // 0
+/* If turned on, we'll open the log stream implicitly if needed on each individual log call. This is normally not
+ * desired as we want to reuse our logging streams. It is useful however */
+void log_set_open_when_needed(bool b);
+
+/* If turned on, then we'll never use IPC-based logging, i.e. never log to syslog or the journal. We'll only log to
+ * stderr, the console or kmsg */
+void log_set_prohibit_ipc(bool b);
+
+int log_dup_console(void);
+
int log_syntax_internal(
const char *unit,
int level,
const char *func,
const char *format, ...) _printf_(9, 10);
+int log_syntax_invalid_utf8_internal(
+ const char *unit,
+ int level,
+ const char *config_file,
+ unsigned config_line,
+ const char *file,
+ int line,
+ const char *func,
+ const char *rvalue);
+
#define log_syntax(unit, level, config_file, config_line, error, ...) \
({ \
int _level = (level), _e = (error); \
#define log_syntax_invalid_utf8(unit, level, config_file, config_line, rvalue) \
({ \
int _level = (level); \
- if (log_get_max_level() >= LOG_PRI(_level)) { \
- _cleanup_free_ char *_p = NULL; \
- _p = utf8_escape_invalid(rvalue); \
- log_syntax_internal(unit, _level, config_file, config_line, 0, __FILE__, __LINE__, __func__, \
- "String is not UTF-8 clean, ignoring assignment: %s", strna(_p)); \
- } \
+ (log_get_max_level() >= LOG_PRI(_level)) \
+ ? log_syntax_invalid_utf8_internal(unit, _level, config_file, config_line, __FILE__, __LINE__, __func__, rvalue) \
+ : -EINVAL; \
})
+
+#define DEBUG_LOGGING _unlikely_(log_get_max_level() >= LOG_DEBUG)
~ianmdlvl / elogind.git / blobdiff