bool_t
fmd_adm_moddstat_1_svc(char *name,
struct fmd_rpc_modstat *rms, struct svc_req *req)
{
fmd_module_t *mp;
rms->rms_buf.rms_buf_val = NULL;
rms->rms_buf.rms_buf_len = 0;
rms->rms_err = 0;
if (fmd_rpc_deny(req)) {
rms->rms_err = FMD_ADM_ERR_PERM;
return (TRUE);
}
if ((mp = fmd_modhash_lookup(fmd.d_mod_hash, name)) == NULL) {
rms->rms_err = FMD_ADM_ERR_MODSRCH;
return (TRUE);
}
rms->rms_buf.rms_buf_val = malloc(sizeof (fmd_modstat_t));
rms->rms_buf.rms_buf_len = sizeof (fmd_modstat_t) / sizeof (fmd_stat_t);
if (rms->rms_buf.rms_buf_val == NULL) {
rms->rms_err = FMD_ADM_ERR_NOMEM;
rms->rms_buf.rms_buf_len = 0;
fmd_module_rele(mp);
return (TRUE);
}
/*
* Note: the bcopy() here is valid only if no FMD_TYPE_STRING stats
* are present in mp->mod_stats. We don't use any for the daemon-
* maintained stats and provide this function in order to reduce the
* overhead of the fmstat(1M) default view, where these minimal stats
* must be retrieved for all of the active modules.
*/
(void) pthread_mutex_lock(&mp->mod_stats_lock);
if (mp->mod_stats != NULL) {
mp->mod_stats->ms_snaptime.fmds_value.ui64 = gethrtime();
bcopy(mp->mod_stats, rms->rms_buf.rms_buf_val,
sizeof (fmd_modstat_t));
} else {
free(rms->rms_buf.rms_buf_val);
rms->rms_buf.rms_buf_val = NULL;
rms->rms_buf.rms_buf_len = 0;
rms->rms_err = FMD_ADM_ERR_MODFAIL;
}
(void) pthread_mutex_unlock(&mp->mod_stats_lock);
fmd_module_rele(mp);
return (TRUE);
}
bool_t
fmd_adm_serdlist_1_svc(char *name, struct fmd_rpc_serdlist *rvp,
struct svc_req *req)
{
fmd_module_t *mp;
void *p;
rvp->rsl_buf.rsl_buf_len = 0;
rvp->rsl_buf.rsl_buf_val = NULL;
rvp->rsl_len = 0;
rvp->rsl_cnt = 0;
rvp->rsl_err = 0;
if (fmd_rpc_deny(req)) {
rvp->rsl_err = FMD_ADM_ERR_PERM;
return (TRUE);
}
if ((mp = fmd_modhash_lookup(fmd.d_mod_hash, name)) == NULL) {
rvp->rsl_err = FMD_ADM_ERR_MODSRCH;
return (TRUE);
}
fmd_module_lock(mp);
/* In the first pass, collect the overall length of the buffer. */
fmd_serd_hash_apply(&mp->mod_serds, fmd_adm_serdlist_measure, rvp);
if (rvp->rsl_len == 0) {
fmd_module_unlock(mp);
fmd_module_rele(mp);
return (TRUE);
}
p = malloc(rvp->rsl_len);
if (p) {
rvp->rsl_buf.rsl_buf_val = p;
rvp->rsl_buf.rsl_buf_len = rvp->rsl_len;
bzero(rvp->rsl_buf.rsl_buf_val, rvp->rsl_buf.rsl_buf_len);
rvp->rsl_len = 0;
/* In the second pass, populate the buffer with data. */
fmd_serd_hash_apply(&mp->mod_serds, fmd_adm_serdlist_record,
rvp);
} else {
rvp->rsl_err = FMD_ADM_ERR_NOMEM;
}
fmd_module_unlock(mp);
fmd_module_rele(mp);
return (TRUE);
}
/*ARGSUSED*/
static void
fmd_err_replay(fmd_log_t *lp, fmd_event_t *ep, fmd_t *dp)
{
fmd_module_t *mp;
fmd_stat_t *sp;
(void) pthread_mutex_lock(&dp->d_mod_lock);
for (mp = fmd_list_next(&dp->d_mod_list);
mp != NULL; mp = fmd_list_next(mp)) {
if (fmd_module_contains(mp, ep)) {
fmd_module_hold(mp);
break;
}
}
(void) pthread_mutex_unlock(&dp->d_mod_lock);
if (mp != NULL) {
fmd_event_commit(ep);
fmd_module_rele(mp);
sp = &dp->d_stats->ds_log_partials;
} else {
fmd_dispq_dispatch(dp->d_disp, ep, FMD_EVENT_DATA(ep));
sp = &dp->d_stats->ds_log_replayed;
}
(void) pthread_mutex_lock(&dp->d_stats_lock);
sp->fmds_value.ui64++;
(void) pthread_mutex_unlock(&dp->d_stats_lock);
}
bool_t
fmd_adm_serdreset_1_svc(char *mname, char *sname, int *rvp, struct svc_req *req)
{
fmd_module_t *mp;
fmd_serd_eng_t *sgp;
int err = 0;
if (fmd_rpc_deny(req)) {
*rvp = FMD_ADM_ERR_PERM;
return (TRUE);
}
if ((mp = fmd_modhash_lookup(fmd.d_mod_hash, mname)) == NULL) {
*rvp = FMD_ADM_ERR_MODSRCH;
return (TRUE);
}
fmd_module_lock(mp);
if ((sgp = fmd_serd_eng_lookup(&mp->mod_serds, sname)) != NULL) {
if (fmd_serd_eng_fired(sgp)) {
err = FMD_ADM_ERR_SERDFIRED;
} else {
fmd_serd_eng_reset(sgp);
fmd_module_setdirty(mp);
}
} else
err = FMD_ADM_ERR_SERDSRCH;
fmd_module_unlock(mp);
fmd_module_rele(mp);
*rvp = err;
return (TRUE);
}
bool_t
fmd_adm_serdinfo_1_svc(char *mname, char *sname, struct fmd_rpc_serdinfo *rvp,
struct svc_req *req)
{
fmd_module_t *mp;
fmd_serd_eng_t *sgp;
bzero(rvp, sizeof (struct fmd_rpc_serdinfo));
if (fmd_rpc_deny(req)) {
rvp->rsi_err = FMD_ADM_ERR_PERM;
return (TRUE);
}
if ((mp = fmd_modhash_lookup(fmd.d_mod_hash, mname)) == NULL) {
rvp->rsi_err = FMD_ADM_ERR_MODSRCH;
return (TRUE);
}
fmd_module_lock(mp);
if ((sgp = fmd_serd_eng_lookup(&mp->mod_serds, sname)) != NULL) {
fmd_adm_serdinfo_record(sgp, rvp);
} else
rvp->rsi_err = FMD_ADM_ERR_SERDSRCH;
fmd_module_unlock(mp);
fmd_module_rele(mp);
return (TRUE);
}
bool_t
fmd_adm_modreset_1_svc(char *name, int *rvp, struct svc_req *req)
{
fmd_module_t *mp = NULL;
int err = 0;
if (fmd_rpc_deny(req))
err = FMD_ADM_ERR_PERM;
else if ((mp = fmd_modhash_lookup(fmd.d_mod_hash, name)) == NULL)
err = FMD_ADM_ERR_MODSRCH;
else if (mp == fmd.d_self)
err = FMD_ADM_ERR_MODBUSY;
else if (fmd_modhash_unload(fmd.d_mod_hash, name) != 0)
err = FMD_ADM_ERR_MODSRCH;
if (err == 0)
fmd_ckpt_delete(mp); /* erase any saved checkpoints */
if (err == 0 && fmd_modhash_load(fmd.d_mod_hash,
mp->mod_path, mp->mod_ops) == NULL) {
if (errno == EFMD_MOD_INIT)
err = FMD_ADM_ERR_MODINIT;
else
err = FMD_ADM_ERR_MODLOAD;
}
if (mp != NULL)
fmd_module_rele(mp);
*rvp = err;
return (TRUE);
}
bool_t
fmd_adm_modcstat_1_svc(char *name,
struct fmd_rpc_modstat *rms, struct svc_req *req)
{
fmd_ustat_snap_t snap;
fmd_module_t *mp;
rms->rms_buf.rms_buf_val = NULL;
rms->rms_buf.rms_buf_len = 0;
rms->rms_err = 0;
if (fmd_rpc_deny(req)) {
rms->rms_err = FMD_ADM_ERR_PERM;
return (TRUE);
}
if ((mp = fmd_modhash_lookup(fmd.d_mod_hash, name)) == NULL) {
rms->rms_err = FMD_ADM_ERR_MODSRCH;
return (TRUE);
}
if (fmd_modstat_snapshot(mp, &snap) == 0) {
rms->rms_buf.rms_buf_val = snap.uss_buf;
rms->rms_buf.rms_buf_len = snap.uss_len;
} else if (errno == EFMD_HDL_ABORT) {
rms->rms_err = FMD_ADM_ERR_MODFAIL;
} else
rms->rms_err = FMD_ADM_ERR_NOMEM;
fmd_module_rele(mp);
return (TRUE);
}
bool_t
fmd_adm_modgc_1_svc(char *name, int *rvp, struct svc_req *req)
{
fmd_module_t *mp;
int err = 0;
if (fmd_rpc_deny(req))
err = FMD_ADM_ERR_PERM;
else if ((mp = fmd_modhash_lookup(fmd.d_mod_hash, name)) == NULL)
err = FMD_ADM_ERR_MODSRCH;
else {
fmd_module_gc(mp);
fmd_module_rele(mp);
}
*rvp = err;
return (TRUE);
}
bool_t
fmd_adm_modunload_1_svc(char *name, int *rvp, struct svc_req *req)
{
fmd_module_t *mp = NULL;
int err = 0;
if (fmd_rpc_deny(req))
err = FMD_ADM_ERR_PERM;
else if ((mp = fmd_modhash_lookup(fmd.d_mod_hash, name)) == NULL)
err = FMD_ADM_ERR_MODSRCH;
else if (mp == fmd.d_self)
err = FMD_ADM_ERR_MODBUSY;
else if (fmd_modhash_unload(fmd.d_mod_hash, name) != 0)
err = FMD_ADM_ERR_MODSRCH;
if (mp != NULL)
fmd_module_rele(mp);
*rvp = err;
return (TRUE);
}
void
fmd_destroy(fmd_t *dp)
{
fmd_module_t *mp;
fmd_case_t *cp;
int core;
(void) fmd_conf_getprop(fmd.d_conf, "core", &core);
fmd_rpc_fini();
fmd_dr_fini();
if (dp->d_xprt_ids != NULL)
fmd_xprt_suspend_all();
/*
* Unload the self-diagnosis module first. This ensures that it does
* not get confused as we start unloading other modules, etc. We must
* hold the dispq lock as a writer while doing so since it uses d_self.
*/
if (dp->d_self != NULL) {
fmd_module_t *self;
(void) pthread_rwlock_wrlock(&dp->d_disp->dq_lock);
self = dp->d_self;
dp->d_self = NULL;
(void) pthread_rwlock_unlock(&dp->d_disp->dq_lock);
fmd_module_unload(self);
fmd_module_rele(self);
}
/*
* Unload modules in reverse order *except* for the root module, which
* is first in the list. This allows it to keep its thread and trace.
*/
for (mp = fmd_list_prev(&dp->d_mod_list); mp != dp->d_rmod; ) {
fmd_module_unload(mp);
mp = fmd_list_prev(mp);
}
if (dp->d_mod_hash != NULL) {
fmd_modhash_destroy(dp->d_mod_hash);
dp->d_mod_hash = NULL;
}
/*
* Close both log files now that modules are no longer active. We must
* set these pointers to NULL in case any subsequent errors occur.
*/
if (dp->d_errlog != NULL) {
fmd_log_rele(dp->d_errlog);
dp->d_errlog = NULL;
}
if (dp->d_fltlog != NULL) {
fmd_log_rele(dp->d_fltlog);
dp->d_fltlog = NULL;
}
/*
* Now destroy the resource cache: each ASRU contains a case reference,
* which may in turn contain a pointer to a referenced owning module.
*/
if (dp->d_asrus != NULL) {
fmd_asru_hash_destroy(dp->d_asrus);
dp->d_asrus = NULL;
}
/*
* Now that all data structures that refer to modules are torn down,
* no modules should be remaining on the module list except for d_rmod.
* If we trip one of these assertions, we're missing a rele somewhere.
*/
ASSERT(fmd_list_prev(&dp->d_mod_list) == dp->d_rmod);
ASSERT(fmd_list_next(&dp->d_mod_list) == dp->d_rmod);
/*
* Now destroy the root module. We clear its thread key first so any
* calls to fmd_trace() inside of the module code will be ignored.
*/
(void) pthread_setspecific(dp->d_key, NULL);
fmd_module_lock(dp->d_rmod);
while ((cp = fmd_list_next(&dp->d_rmod->mod_cases)) != NULL)
fmd_case_discard(cp);
fmd_module_unlock(dp->d_rmod);
fmd_free(dp->d_rmod->mod_stats, sizeof (fmd_modstat_t));
dp->d_rmod->mod_stats = NULL;
(void) pthread_mutex_lock(&dp->d_rmod->mod_lock);
dp->d_rmod->mod_flags |= FMD_MOD_FINI;
(void) pthread_mutex_unlock(&dp->d_rmod->mod_lock);
fmd_module_rele(dp->d_rmod);
ASSERT(fmd_list_next(&dp->d_mod_list) == NULL);
/*
* Now destroy the remaining global data structures. If 'core' was
* set to true, force a core dump so we can check for memory leaks.
*/
if (dp->d_cases != NULL)
fmd_case_hash_destroy(dp->d_cases);
if (dp->d_disp != NULL)
fmd_dispq_destroy(dp->d_disp);
if (dp->d_timers != NULL)
fmd_timerq_destroy(dp->d_timers);
if (dp->d_schemes != NULL)
fmd_scheme_hash_destroy(dp->d_schemes);
if (dp->d_xprt_ids != NULL)
fmd_idspace_destroy(dp->d_xprt_ids);
if (dp->d_errstats != NULL) {
fmd_free(dp->d_errstats,
sizeof (fmd_stat_t) * (EFMD_END - EFMD_UNKNOWN));
}
if (dp->d_conf != NULL)
fmd_conf_close(dp->d_conf);
if (dp->d_topo != NULL)
topo_close(dp->d_topo);
nvlist_free(dp->d_auth);
(void) nv_alloc_fini(&dp->d_nva);
dp->d_clockops->fto_fini(dp->d_clockptr);
(void) pthread_key_delete(dp->d_key);
bzero(dp, sizeof (fmd_t));
if (core)
fmd_panic("forcing core dump at user request\n");
}
