From 578c4098e6c4a9d3c38ba0f571ded0b4971a7c2b Mon Sep 17 00:00:00 2001 From: Alasdair Kergon Date: Fri, 14 May 2010 14:56:39 +0000 Subject: [PATCH] Use -d to control level of messages sent to syslog by dmeventd. Change -d to -f to run dmeventd in foreground. (mornfall) --- WHATS_NEW_DM | 2 + daemons/dmeventd/dmeventd.c | 22 +++++++---- daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c | 39 +++++++++++++++---- .../dmeventd/plugins/mirror/dmeventd_mirror.c | 3 +- test/test-utils.sh | 3 +- 5 files changed, 51 insertions(+), 18 deletions(-) diff --git a/WHATS_NEW_DM b/WHATS_NEW_DM index c40b8b73d..b4a56d40e 100644 --- a/WHATS_NEW_DM +++ b/WHATS_NEW_DM @@ -1,5 +1,7 @@ Version 1.02.48 - ================================= + Use -d to control level of messages sent to syslog by dmeventd. + Change -d to -f to run dmeventd in foreground. Do not print encryption key in message debug output (cryptsetup luksResume). Version 1.02.47 - 30th April 2010 diff --git a/daemons/dmeventd/dmeventd.c b/daemons/dmeventd/dmeventd.c index 6d1fcd0dd..23cc4689d 100644 --- a/daemons/dmeventd/dmeventd.c +++ b/daemons/dmeventd/dmeventd.c @@ -54,7 +54,6 @@ static volatile sig_atomic_t _exit_now = 0; /* set to '1' when signal is given to exit */ static volatile sig_atomic_t _thread_registries_empty = 1; /* registries are empty initially */ -static int _debug = 0; /* List (un)link macros. */ #define LINK(x, head) dm_list_add(head, &(x)->list) @@ -98,6 +97,9 @@ static pthread_mutex_t _global_mutex; #define DEBUGLOG(fmt, args...) _debuglog(fmt, ## args) +int dmeventd_debug = 0; +static int _foreground = 0; + /* Data kept about a DSO. */ struct dso_data { struct dm_list list; @@ -204,7 +206,7 @@ static void _debuglog(const char *fmt, ...) time_t P; va_list ap; - if (!_debug) + if (!_foreground) return; va_start(ap,fmt); @@ -1662,11 +1664,12 @@ static void _daemonize(void) static void usage(char *prog, FILE *file) { fprintf(file, "Usage:\n"); - fprintf(file, "%s [Vhd]\n", prog); + fprintf(file, "%s [-V] [-h] [-d] [-d] [-d] [-f]\n", prog); fprintf(file, "\n"); fprintf(file, " -V Show version of dmeventd\n"); fprintf(file, " -h Show this help information\n"); - fprintf(file, " -d Don't fork, run in the foreground\n"); + fprintf(file, " -d Log debug messages to syslog (-d, -dd, -ddd)\n"); + fprintf(file, " -f Don't fork, run in the foreground\n"); fprintf(file, "\n"); } @@ -1680,7 +1683,7 @@ int main(int argc, char *argv[]) opterr = 0; optind = 0; - while ((opt = getopt(argc, argv, "?hVd")) != EOF) { + while ((opt = getopt(argc, argv, "?fhVd")) != EOF) { switch (opt) { case 'h': usage(argv[0], stdout); @@ -1688,8 +1691,11 @@ int main(int argc, char *argv[]) case '?': usage(argv[0], stderr); exit(0); + case 'f': + _foreground++; + break; case 'd': - _debug++; + dmeventd_debug++; break; case 'V': printf("dmeventd version: %s\n", DM_LIB_VERSION); @@ -1706,7 +1712,7 @@ int main(int argc, char *argv[]) if (setenv("LANG", "C", 1)) perror("Cannot set LANG to C"); - if (!_debug) + if (!_foreground) _daemonize(); openlog("dmeventd", LOG_PID, LOG_DAEMON); @@ -1738,7 +1744,7 @@ int main(int argc, char *argv[]) exit(EXIT_FIFO_FAILURE); /* Signal parent, letting them know we are ready to go. */ - if (!_debug) + if (!_foreground) kill(getppid(), SIGTERM); syslog(LOG_NOTICE, "dmeventd ready for processing."); diff --git a/daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c b/daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c index bff60b48a..bc72d5396 100644 --- a/daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c +++ b/daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c @@ -13,6 +13,7 @@ */ #include "lib.h" +#include "log.h" #include "lvm2cmd.h" #include "errors.h" @@ -22,6 +23,8 @@ #include #include +extern int dmeventd_debug; + /* * register_device() is called first and performs initialisation. * Only one device may be registered or unregistered at a time. @@ -40,19 +43,41 @@ static void *_lvm_handle = NULL; */ static pthread_mutex_t _event_mutex = PTHREAD_MUTEX_INITIALIZER; -/* FIXME Remove this: Pass messages back to dmeventd core for processing. */ +/* + * FIXME Do not pass things directly to syslog, rather use the existing logging + * facilities to sort logging ... however that mechanism needs to be somehow + * configurable and we don't have that option yet + */ static void _temporary_log_fn(int level, const char *file __attribute((unused)), int line __attribute((unused)), int dm_errno __attribute((unused)), - const char *format) + const char *message) { - level &= ~_LOG_STDERR; + level &= ~(_LOG_STDERR | _LOG_ONCE); - if (!strncmp(format, "WARNING: ", 9) && (level < 5)) - syslog(LOG_CRIT, "%s", format); - else - syslog(LOG_DEBUG, "%s", format); + switch (level) { + case _LOG_DEBUG: + if (dmeventd_debug >= 3) + syslog(LOG_DEBUG, "%s", message); + break; + case _LOG_INFO: + if (dmeventd_debug >= 2) + syslog(LOG_INFO, "%s", message); + break; + case _LOG_NOTICE: + if (dmeventd_debug >= 1) + syslog(LOG_NOTICE, "%s", message); + break; + case _LOG_WARN: + syslog(LOG_WARNING, "%s", message); + break; + case _LOG_ERR: + syslog(LOG_ERR, "%s", message); + break; + default: + syslog(LOG_CRIT, "%s", message); + } } void dmeventd_lvm2_lock(void) diff --git a/daemons/dmeventd/plugins/mirror/dmeventd_mirror.c b/daemons/dmeventd/plugins/mirror/dmeventd_mirror.c index 788f9f5a8..0e24dca03 100644 --- a/daemons/dmeventd/plugins/mirror/dmeventd_mirror.c +++ b/daemons/dmeventd/plugins/mirror/dmeventd_mirror.c @@ -160,7 +160,8 @@ static int _remove_failed_devices(const char *device) r = dmeventd_lvm2_run(cmd_str); - syslog(LOG_INFO, "Repair of mirrored LV %s/%s %s.", vg, lv, (r == ECMD_PROCESSED) ? "finished successfully" : "failed"); + syslog(LOG_INFO, "Repair of mirrored LV %s/%s %s.", vg, lv, + (r == ECMD_PROCESSED) ? "finished successfully" : "failed"); return (r == ECMD_PROCESSED) ? 0 : -1; } diff --git a/test/test-utils.sh b/test/test-utils.sh index 497d2340d..fd804b15a 100644 --- a/test/test-utils.sh +++ b/test/test-utils.sh @@ -87,9 +87,8 @@ prepare_dmeventd() { trap_teardown - dmeventd -d & + dmeventd -f & LOCAL_DMEVENTD="$!" - strace -p $LOCAL_DMEVENTD & } prepare_testroot() {