diff options
Diffstat (limited to 'src/nm-logging.c')
| -rw-r--r-- | src/nm-logging.c | 58 |
1 files changed, 52 insertions, 6 deletions
diff --git a/src/nm-logging.c b/src/nm-logging.c index 11e05c31f7..c55537910a 100644 --- a/src/nm-logging.c +++ b/src/nm-logging.c @@ -98,6 +98,12 @@ static struct Global { const char *prefix; const char *syslog_identifier; enum { + /* before we setup syslog (during start), the backend defaults to GLIB, meaning: + * we use g_log() for all logging. At that point, the application is not yet supposed + * to do any logging and doing so indicates a bug. + * + * Afterwards, the backend is either SYSLOG or JOURNAL. From that point, also + * g_log() is redirected to this backend via a logging handler. */ LOG_BACKEND_GLIB, LOG_BACKEND_SYSLOG, LOG_BACKEND_JOURNAL, @@ -832,21 +838,36 @@ nm_logging_set_prefix (const char *format, ...) void nm_logging_syslog_openlog (const char *logging_backend, gboolean debug) { + gboolean fetch_monotonic_timestamp = FALSE; + gboolean obsolete_debug_backend = FALSE; + + nm_assert (NM_IN_STRSET (""NM_CONFIG_DEFAULT_LOGGING_BACKEND, + NM_LOG_CONFIG_BACKEND_JOURNAL, + NM_LOG_CONFIG_BACKEND_SYSLOG)); + if (global.log_backend != LOG_BACKEND_GLIB) g_return_if_reached (); if (!logging_backend) logging_backend = ""NM_CONFIG_DEFAULT_LOGGING_BACKEND; + if (nm_streq (logging_backend, NM_LOG_CONFIG_BACKEND_DEBUG)) { + /* "debug" was wrongly documented as a valid logging backend. It makes no sense however, + * because printing to stderr only makes sense when not demonizing. Whether to daemonize + * is only controlled via command line arguments (--no-daemon, --debug) and not via the + * logging backend from configuration. + * + * Fall back to the default. */ + logging_backend = ""NM_CONFIG_DEFAULT_LOGGING_BACKEND; + obsolete_debug_backend = TRUE; + } + #if SYSTEMD_JOURNAL - if (strcmp (logging_backend, "syslog") != 0) { + if (!nm_streq (logging_backend, NM_LOG_CONFIG_BACKEND_SYSLOG)) { global.log_backend = LOG_BACKEND_JOURNAL; global.uses_syslog = TRUE; global.debug_stderr = debug; - - /* ensure we read a monotonic timestamp. Reading the timestamp the first - * time causes a logging message. We don't want to do that during _nm_log_impl. */ - nm_utils_get_monotonic_timestamp_ns (); + fetch_monotonic_timestamp = TRUE; } else #endif { @@ -860,5 +881,30 @@ nm_logging_syslog_openlog (const char *logging_backend, gboolean debug) G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION, nm_log_handler, NULL); -} + if (fetch_monotonic_timestamp) { + /* ensure we read a monotonic timestamp. Reading the timestamp the first + * time causes a logging message. We don't want to do that during _nm_log_impl. */ + nm_utils_get_monotonic_timestamp_ns (); + } + + if (obsolete_debug_backend) + nm_log_dbg (LOGD_CORE, "config: ignore deprecated logging backend 'debug', fallback to '%s'", logging_backend); + + if (nm_streq (logging_backend, NM_LOG_CONFIG_BACKEND_SYSLOG)) { + /* good */ + } else if (nm_streq (logging_backend, NM_LOG_CONFIG_BACKEND_JOURNAL)) { +#if !SYSTEMD_JOURNAL + nm_log_warn (LOGD_CORE, "config: logging backend 'journal' is not available, fallback to 'syslog'"); +#endif + } else { + nm_log_warn (LOGD_CORE, "config: invalid logging backend '%s', fallback to '%s'", + logging_backend, +#if SYSTEMD_JOURNAL + NM_LOG_CONFIG_BACKEND_JOURNAL +#else + NM_LOG_CONFIG_BACKEND_SYSLOG +#endif + ); + } +} |