static void
_daemon_cmd_err (const char *str, int exit_on_fatal)
{
assert (str);
if (!cmd_args.verbose_logging)
{
if (repeat_ipmi_ctx_errnum == last_ipmi_ctx_errnum
&& repeat_cmd == last_cmd
&& repeat_netfn == last_netfn
&& repeat_comp_code == last_comp_code)
{
log_repeat_count++;
if (log_repeat_count < BMC_WATCHDOG_LOG_REPEAT_LIMIT)
return;
}
}
if (ipmi_ctx_errnum (ipmi_ctx) == IPMI_ERR_BAD_COMPLETION_CODE)
err_output ("%s: %s", str, comp_code_errbuf);
else if (ipmi_ctx_errnum (ipmi_ctx) != IPMI_ERR_DRIVER_BUSY
&& ipmi_ctx_errnum (ipmi_ctx) != IPMI_ERR_BMC_BUSY
&& ipmi_ctx_errnum (ipmi_ctx) != IPMI_ERR_IPMI_ERROR)
{
err_output ("%s: %s", str, ipmi_ctx_errormsg (ipmi_ctx));
if (exit_on_fatal)
exit (EXIT_FAILURE);
}
repeat_ipmi_ctx_errnum = last_ipmi_ctx_errnum;
repeat_cmd = last_cmd;
repeat_netfn = last_netfn;
repeat_comp_code = last_comp_code;
log_repeat_count = 0;
}
static void log_no_err(const char *fmt,...)
{
#ifdef AP_LOG_EXEC
va_list ap;
va_start(ap, fmt);
err_output(0, fmt, ap); /* 0 == !is_error */
va_end(ap);
#endif /* AP_LOG_EXEC */
return;
}
static void log_err(const char *fmt,...)
{
#ifdef LOG_EXEC
va_list ap;
va_start(ap, fmt);
err_output(fmt, ap);
va_end(ap);
#endif /* LOG_EXEC */
return;
}
static void log_err(const char *fmt,...)
{
#ifdef SUEXEC_LOGFILE
va_list ap;
va_start(ap, fmt);
err_output(1, fmt, ap); /* 1 == is_error */
va_end(ap);
#endif /* SUEXEC_LOGFILE */
return;
}
void
ipmiseld_err_output (ipmiseld_host_data_t *host_data,
const char *message,
...)
{
char buf[IPMISELD_ERR_BUFLEN + 1];
va_list ap;
assert (host_data);
assert (message);
memset (buf, '\0', IPMISELD_ERR_BUFLEN + 1);
va_start (ap, message);
vsnprintf(buf, IPMISELD_ERR_BUFLEN, message, ap);
if (!host_data->hostname)
err_output ("%s", buf);
else
err_output ("%s: %s", host_data->hostname, buf);
va_end (ap);
}
static void
_config_file_parse (void)
{
int ipmiping_period_flag,
ipmidetectd_server_port_flag,
host_flag;
struct conffile_option options[] =
{
{
"ipmiping_period",
CONFFILE_OPTION_INT,
-1,
conffile_int,
1,
0,
&(ipmiping_period_flag),
&(conf.ipmiping_period),
0
},
{
"ipmidetectd_server_port",
CONFFILE_OPTION_INT,
-1,
conffile_int,
1,
0,
&(ipmidetectd_server_port_flag),
&(conf.ipmidetectd_server_port),
0,
},
{
"host",
CONFFILE_OPTION_STRING,
-1,
_cb_host,
INT_MAX,
0,
&host_flag,
NULL,
0
},
};
conffile_t cf = NULL;
int legacy_file_loaded = 0;
int num;
if (!(cf = conffile_handle_create ()))
{
err_output ("conffile_handle_create");
goto cleanup;
}
num = sizeof (options)/sizeof (struct conffile_option);
/* Try legacy file first */
if (!cmd_args.config_file)
{
if (!conffile_parse (cf,
IPMIDETECTD_CONFIG_FILE_LEGACY,
options,
num,
NULL,
0,
0))
legacy_file_loaded++;
}
if (!legacy_file_loaded)
{
if (conffile_parse (cf,
cmd_args.config_file ? cmd_args.config_file : IPMIDETECTD_CONFIG_FILE_DEFAULT,
options,
num,
NULL,
0,
0) < 0)
{
char buf[CONFFILE_MAX_ERRMSGLEN];
/* Its not an error if the default configuration file doesn't exist */
if ((!cmd_args.config_file
|| !strcmp (cmd_args.config_file, IPMIDETECTD_CONFIG_FILE_DEFAULT))
&& conffile_errnum (cf) == CONFFILE_ERR_EXIST)
goto cleanup;
if (conffile_errmsg (cf, buf, CONFFILE_MAX_ERRMSGLEN) < 0)
err_exit ("conffile_parse: %d", conffile_errnum (cf));
else
err_exit ("conffile_parse: %s", buf);
}
}
cleanup:
conffile_handle_destroy (cf);
}
static int
_cmd (const char *str,
uint8_t netfn,
uint8_t cmd,
fiid_obj_t obj_cmd_rq,
fiid_obj_t obj_cmd_rs)
{
int retry_count = 0;
int ret = 0;
assert (str
&& (netfn == IPMI_NET_FN_APP_RQ || netfn == IPMI_NET_FN_TRANSPORT_RQ)
&& obj_cmd_rq
&& obj_cmd_rs);
last_ipmi_ctx_errnum = -1;
last_cmd = cmd;
last_netfn = netfn;
last_comp_code = 0;
while (1)
{
if ((ret = ipmi_cmd (ipmi_ctx,
IPMI_BMC_IPMB_LUN_BMC,
netfn,
obj_cmd_rq,
obj_cmd_rs)) < 0)
{
last_ipmi_ctx_errnum = ipmi_ctx_errnum (ipmi_ctx);
if (ipmi_ctx_errnum (ipmi_ctx) != IPMI_ERR_DRIVER_BUSY
&& ipmi_ctx_errnum (ipmi_ctx) != IPMI_ERR_BMC_BUSY
&& ipmi_ctx_errnum (ipmi_ctx) != IPMI_ERR_IPMI_ERROR)
{
if (cmd_args.verbose_logging)
err_output ("%s: ipmi_cmd: %s", str, ipmi_ctx_errormsg (ipmi_ctx));
if (ipmi_ctx_errnum (ipmi_ctx) == IPMI_ERR_BAD_COMPLETION_CODE)
{
if (ipmi_completion_code_strerror_cmd_r (obj_cmd_rs,
netfn,
comp_code_errbuf,
BMC_WATCHDOG_ERR_BUFLEN) < 0)
{
uint64_t val;
_fiid_obj_get (obj_cmd_rs, "comp_code", &val);
last_comp_code = val;
snprintf (comp_code_errbuf,
BMC_WATCHDOG_ERR_BUFLEN,
"Comp Code 0x%X",
last_comp_code);
}
}
return (-1);
}
}
if (ret < 0)
{
if (retry_count >= retry_attempts)
{
err_output ("%s: BMC Timeout: %s", str, ipmi_ctx_errormsg (ipmi_ctx));
return (-1);
}
daemon_sleep (retry_wait_time);
retry_count++;
}
else
break;
}
return (0);
}
static void
_daemon_cmd (const char *progname)
{
uint32_t reset_period = BMC_WATCHDOG_RESET_PERIOD_DEFAULT;
uint8_t timer_use, timer_state, log, timeout_action, pre_timeout_interrupt,
pre_timeout_interval;
uint16_t initial_countdown_seconds;
uint16_t previous_present_countdown_seconds = 0;
uint16_t present_countdown_seconds;
assert (progname);
/* Run in foreground if debugging */
if (!cmd_args.common_args.debug)
daemonize_common (BMC_WATCHDOG_PIDFILE);
daemon_signal_handler_setup (_signal_handler_callback);
/* move error outs to syslog from stderr */
if (!cmd_args.no_logging)
err_set_flags (ERROR_SYSLOG);
else
err_set_flags (0);
openlog (progname, LOG_ODELAY | LOG_PID, LOG_DAEMON);
_init_bmc_watchdog ();
_daemon_setup ();
if (cmd_args.reset_period)
reset_period = cmd_args.reset_period_arg;
retry_wait_time = BMC_WATCHDOG_RETRY_WAIT_TIME_DEFAULT;
retry_attempts = BMC_WATCHDOG_RETRY_ATTEMPTS_DEFAULT;
if ((retry_wait_time * retry_attempts) > reset_period)
{
retry_wait_time = 0;
retry_attempts = 0;
}
else if (reset_period > retry_wait_time
&& reset_period < (retry_wait_time * retry_attempts))
retry_attempts = reset_period/retry_wait_time;
/* IPMI Workaround
*
* Discovered on Sun x4100M2 and x4200M2
*
* If implementing the IGNORE_STATE_FLAG workaround flag below, we
* need to sleep a little bit to make sure the BMC timer has really
* started.
*
* From 27.7 "Internal delays in the BMC may require software to
* delay up to 100 ms before seeing the countdown value change and
* be reflected in the Get Watchdog Timer command".
*/
if (cmd_args.common_args.section_specific_workaround_flags & IPMI_PARSE_SECTION_SPECIFIC_WORKAROUND_FLAGS_IGNORE_STATE_FLAG)
daemon_sleep (1);
while (shutdown_flag)
{
struct timeval start_tv, end_tv;
uint32_t adjusted_period;
if (gettimeofday (&start_tv, NULL) < 0)
err_exit ("gettimeofday: %s", strerror (errno));
if (_get_watchdog_timer_cmd (NULL,
&timer_state,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
&present_countdown_seconds) < 0)
{
_daemon_cmd_err_no_exit ("Get Watchdog Timer");
goto sleep_now;
}
/* IPMI Workaround
*
* Discovered on Sun x4100M2 and x4200M2
*
* On some BMCs, the timer state flag is not functional. Therefore,
* to have an operational BMC watchdog, it must function without it.
* We instead look to see if the timer is changing.
*/
if (cmd_args.common_args.section_specific_workaround_flags & IPMI_PARSE_SECTION_SPECIFIC_WORKAROUND_FLAGS_IGNORE_STATE_FLAG)
{
if (previous_present_countdown_seconds == present_countdown_seconds)
{
err_output ("timer stopped by another process");
return;
}
previous_present_countdown_seconds = present_countdown_seconds;
}
else
{
if (timer_state == IPMI_BMC_WATCHDOG_TIMER_TIMER_STATE_STOPPED)
{
err_output ("timer stopped by another process");
return;
}
}
if (_reset_watchdog_timer_cmd () < 0)
{
_daemon_cmd_err_no_exit ("Reset Watchdog Timer");
goto sleep_now;
}
/* IPMI Workaround
*
* Discovered on Sun x4100M2 and x4200M2
*
* If implementing the IGNORE_STATE_FLAG workaround flag above,
* we need to reset the previous_present_countdown_seconds to
* what it is after the timer reset.
*/
if (cmd_args.common_args.section_specific_workaround_flags & IPMI_PARSE_SECTION_SPECIFIC_WORKAROUND_FLAGS_IGNORE_STATE_FLAG)
{
/* From 27.7 "Internal delays in the BMC may require software to
* delay up to 100 ms before seeing the countdown value change and
* be reflected in the Get Watchdog Timer command".
*/
daemon_sleep (1);
if (_get_watchdog_timer_cmd (NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
&present_countdown_seconds) < 0)
{
_daemon_cmd_err_no_exit ("Get Watchdog Timer");
goto sleep_now;
}
previous_present_countdown_seconds = present_countdown_seconds;
}
sleep_now:
if (gettimeofday (&end_tv, NULL) < 0)
err_exit ("gettimeofday: %s", strerror (errno));
adjusted_period = reset_period;
/* Ignore micro secs, just seconds is good enough */
if ((end_tv.tv_sec - start_tv.tv_sec) < adjusted_period)
adjusted_period -= (end_tv.tv_sec - start_tv.tv_sec);
daemon_sleep (adjusted_period);
}
/* Need to stop the timer, don't want it to keep on going. Don't
* give up until its shut off.
*/
/* set back to defaults, no reset-period adjustment anymore */
retry_wait_time = BMC_WATCHDOG_RETRY_WAIT_TIME_DEFAULT;
retry_attempts = BMC_WATCHDOG_RETRY_ATTEMPTS_DEFAULT;
while (1)
{
if (_get_watchdog_timer_cmd (&timer_use,
NULL,
&log,
&timeout_action,
&pre_timeout_interrupt,
&pre_timeout_interval,
NULL,
NULL,
NULL,
NULL,
NULL,
&initial_countdown_seconds,
NULL) < 0)
{
_daemon_cmd_err_no_exit ("Get Watchdog Timer");
daemon_sleep (BMC_WATCHDOG_RETRY_WAIT_TIME_DEFAULT);
continue;
}
break;
}
while (1)
{
if (_set_watchdog_timer_cmd (timer_use,
IPMI_BMC_WATCHDOG_TIMER_STOP_TIMER_ENABLE,
log,
timeout_action,
pre_timeout_interrupt,
pre_timeout_interval,
0,
0,
0,
0,
0,
initial_countdown_seconds) < 0)
{
_daemon_cmd_err_no_exit ("Set Watchdog Timer");
daemon_sleep (BMC_WATCHDOG_RETRY_WAIT_TIME_DEFAULT);
continue;
}
break;
}
}
static void
_daemon_setup (void)
{
uint8_t timer_use, timer_state, log, timeout_action, pre_timeout_interrupt,
pre_timeout_interval;
uint32_t reset_period = BMC_WATCHDOG_RESET_PERIOD_DEFAULT;
uint16_t initial_countdown_seconds;
while (1)
{
if (_get_watchdog_timer_cmd (&timer_use,
&timer_state,
&log,
&timeout_action,
&pre_timeout_interrupt,
&pre_timeout_interval,
NULL,
NULL,
NULL,
NULL,
NULL,
&initial_countdown_seconds,
NULL) < 0)
{
_daemon_cmd_err_maybe_exit ("Get Watchdog Timer");
daemon_sleep (BMC_WATCHDOG_RETRY_WAIT_TIME_DEFAULT);
continue;
}
break;
}
if (timer_state == IPMI_BMC_WATCHDOG_TIMER_TIMER_STATE_RUNNING)
err_exit ("Error: watchdog timer must be stopped before running daemon");
timer_use = (cmd_args.timer_use) ? cmd_args.timer_use_arg : timer_use;
log = (cmd_args.log) ? cmd_args.log_arg : log;
timeout_action = (cmd_args.timeout_action) ?
cmd_args.timeout_action_arg : timeout_action;
pre_timeout_interrupt = (cmd_args.pre_timeout_interrupt) ?
cmd_args.pre_timeout_interrupt_arg : pre_timeout_interrupt;
pre_timeout_interval = (cmd_args.pre_timeout_interval) ?
cmd_args.pre_timeout_interval_arg : pre_timeout_interval;
initial_countdown_seconds = (cmd_args.initial_countdown_seconds) ?
cmd_args.initial_countdown_seconds_arg : initial_countdown_seconds;
if ((pre_timeout_interrupt != IPMI_BMC_WATCHDOG_TIMER_PRE_TIMEOUT_INTERRUPT_NONE)
&& (pre_timeout_interval > initial_countdown_seconds))
err_exit ("Error: pre-timeout interval greater than initial countdown seconds");
if (cmd_args.reset_period)
reset_period = cmd_args.reset_period_arg;
if (reset_period > initial_countdown_seconds)
err_exit ("Error: reset-period interval greater than initial countdown seconds");
while (1)
{
if (_set_watchdog_timer_cmd (timer_use,
IPMI_BMC_WATCHDOG_TIMER_STOP_TIMER_ENABLE,
log,
timeout_action,
pre_timeout_interrupt,
pre_timeout_interval,
(cmd_args.clear_bios_frb2) ? 1 : 0,
(cmd_args.clear_bios_post) ? 1 : 0,
(cmd_args.clear_os_load) ? 1 : 0,
(cmd_args.clear_sms_os) ? 1 : 0,
(cmd_args.clear_oem) ? 1 : 0,
initial_countdown_seconds) < 0)
{
_daemon_cmd_err_maybe_exit ("Set Watchdog Timer");
daemon_sleep (BMC_WATCHDOG_RETRY_WAIT_TIME_DEFAULT);
continue;
}
break;
}
/* Must start watchdog timer before entering loop */
while (1)
{
if (_reset_watchdog_timer_cmd () < 0)
{
_daemon_cmd_err_maybe_exit ("Reset Watchdog Timer");
daemon_sleep (BMC_WATCHDOG_RETRY_WAIT_TIME_DEFAULT);
continue;
}
break;
}
if (cmd_args.gratuitous_arp || cmd_args.arp_response)
{
uint8_t gratuitous_arp, arp_response;
if (cmd_args.gratuitous_arp)
gratuitous_arp = cmd_args.gratuitous_arp_arg;
else
gratuitous_arp = IPMI_BMC_GENERATED_GRATUITOUS_ARP_DO_NOT_SUSPEND;
if (cmd_args.arp_response)
arp_response = cmd_args.gratuitous_arp_arg;
else
arp_response = IPMI_BMC_GENERATED_ARP_RESPONSE_DO_NOT_SUSPEND;
while (1)
{
int ret;
if ((ret = _suspend_bmc_arps_cmd (gratuitous_arp,
arp_response)) < 0)
{
_daemon_cmd_err_maybe_exit ("Suspend BMC ARPs");
daemon_sleep (BMC_WATCHDOG_RETRY_WAIT_TIME_DEFAULT);
continue;
}
if (!ret)
err_output ("cannot suspend BMC ARPs");
break;
}
}
return;
}