/*
* Enable processor set plugin.
*/
int
pool_pset_enable(void)
{
int error;
nvlist_t *props;
ASSERT(pool_lock_held());
ASSERT(INGLOBALZONE(curproc));
/*
* Can't enable pools if there are existing cpu partitions.
*/
mutex_enter(&cpu_lock);
if (cp_numparts > 1) {
mutex_exit(&cpu_lock);
return (EEXIST);
}
/*
* We want to switch things such that everything that was tagged with
* the special ALL_ZONES token now is explicitly visible to all zones:
* first add individual zones to the visibility list then remove the
* special "ALL_ZONES" token. There must only be the default pset
* (PS_NONE) active if pools are being enabled, so we only need to
* deal with it.
*
* We want to make pool_pset_enabled() start returning B_TRUE before
* we call any of the visibility update functions.
*/
global_zone->zone_psetid = PS_NONE;
/*
* We need to explicitly handle the global zone since
* zone_pset_set() won't modify it.
*/
pool_pset_visibility_add(PS_NONE, global_zone);
/*
* A NULL argument means the ALL_ZONES token.
*/
pool_pset_visibility_remove(PS_NONE, NULL);
error = zone_walk(pool_pset_zone_pset_set, (void *)PS_NONE);
ASSERT(error == 0);
/*
* It is safe to drop cpu_lock here. We're still
* holding pool_lock so no new cpu partitions can
* be created while we're here.
*/
mutex_exit(&cpu_lock);
(void) nvlist_alloc(&pool_pset_default->pset_props,
NV_UNIQUE_NAME, KM_SLEEP);
props = pool_pset_default->pset_props;
(void) nvlist_add_string(props, "pset.name", "pset_default");
(void) nvlist_add_string(props, "pset.comment", "");
(void) nvlist_add_int64(props, "pset.sys_id", PS_NONE);
(void) nvlist_add_string(props, "pset.units", "population");
(void) nvlist_add_byte(props, "pset.default", 1);
(void) nvlist_add_uint64(props, "pset.max", 65536);
(void) nvlist_add_uint64(props, "pset.min", 1);
pool_pset_mod = pool_cpu_mod = gethrtime();
return (0);
}
/*
* Create new processor set and give it a temporary name.
*/
int
pool_pset_create(psetid_t *id)
{
char pset_name[40];
pool_pset_t *pset;
psetid_t psetid;
int err;
ASSERT(pool_lock_held());
if ((err = cpupart_create(&psetid)) != 0)
return (err);
pset = kmem_alloc(sizeof (pool_pset_t), KM_SLEEP);
pset->pset_id = *id = psetid;
pset->pset_npools = 0;
(void) nvlist_alloc(&pset->pset_props, NV_UNIQUE_NAME, KM_SLEEP);
(void) nvlist_add_int64(pset->pset_props, "pset.sys_id", psetid);
(void) nvlist_add_byte(pset->pset_props, "pset.default", 0);
pool_pset_mod = gethrtime();
(void) snprintf(pset_name, sizeof (pset_name), "pset_%lld",
pool_pset_mod);
(void) nvlist_add_string(pset->pset_props, "pset.name", pset_name);
list_insert_tail(&pool_pset_list, pset);
return (0);
}
void
fnvlist_add_int64(nvlist_t *nvl, const char *name, int64_t val)
{
VERIFY0(nvlist_add_int64(nvl, name, val));
}
static void
set_prop(topo_hdl_t *thp, tnode_t *node, nvlist_t *fmri, struct prop_args *pp)
{
int ret, err = 0;
topo_type_t type;
nvlist_t *nvl, *f = NULL;
char *end;
if (pp->prop == NULL || pp->type == NULL || pp->value == NULL)
return;
if ((type = str2type(pp->type)) == TOPO_TYPE_INVALID) {
(void) fprintf(stderr, "%s: invalid property type %s for %s\n",
g_pname, pp->type, pp->prop);
return;
}
if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) {
(void) fprintf(stderr, "%s: nvlist allocation failed for "
"%s=%s:%s\n", g_pname, pp->prop, pp->type, pp->value);
return;
}
ret = nvlist_add_string(nvl, TOPO_PROP_VAL_NAME, pp->prop);
ret |= nvlist_add_uint32(nvl, TOPO_PROP_VAL_TYPE, type);
if (ret != 0) {
(void) fprintf(stderr, "%s: invalid property type %s for %s\n",
g_pname, pp->type, pp->prop);
nvlist_free(nvl);
return;
}
errno = 0;
switch (type) {
case TOPO_TYPE_INT32:
{
int32_t val;
val = strtol(pp->value, &end, 0);
if (errno == ERANGE) {
ret = -1;
break;
}
ret = nvlist_add_int32(nvl, TOPO_PROP_VAL_VAL, val);
break;
}
case TOPO_TYPE_UINT32:
{
uint32_t val;
val = strtoul(pp->value, &end, 0);
if (errno == ERANGE) {
ret = -1;
break;
}
ret = nvlist_add_uint32(nvl, TOPO_PROP_VAL_VAL, val);
break;
}
case TOPO_TYPE_INT64:
{
int64_t val;
val = strtoll(pp->value, &end, 0);
if (errno == ERANGE) {
ret = -1;
break;
}
ret = nvlist_add_int64(nvl, TOPO_PROP_VAL_VAL, val);
break;
}
case TOPO_TYPE_UINT64:
{
uint64_t val;
val = strtoull(pp->value, &end, 0);
if (errno == ERANGE) {
ret = -1;
break;
}
ret = nvlist_add_uint64(nvl, TOPO_PROP_VAL_VAL, val);
break;
}
case TOPO_TYPE_STRING:
{
ret = nvlist_add_string(nvl, TOPO_PROP_VAL_VAL,
pp->value);
break;
}
case TOPO_TYPE_FMRI:
{
if ((ret = topo_fmri_str2nvl(thp, pp->value, &f, &err))
< 0)
break;
if ((ret = nvlist_add_nvlist(nvl, TOPO_PROP_VAL_VAL,
f)) != 0)
err = ETOPO_PROP_NVL;
break;
}
default:
ret = -1;
}
if (ret != 0) {
(void) fprintf(stderr, "%s: unable to set property value for "
"%s: %s\n", g_pname, pp->prop, topo_strerror(err));
nvlist_free(nvl);
return;
}
if (node != NULL) {
if (topo_prop_setprop(node, pp->group, nvl, TOPO_PROP_MUTABLE,
f, &ret) < 0) {
(void) fprintf(stderr, "%s: unable to set property "
"value for " "%s=%s:%s: %s\n", g_pname, pp->prop,
pp->type, pp->value, topo_strerror(ret));
nvlist_free(nvl);
nvlist_free(f);
return;
}
} else {
if (topo_fmri_setprop(thp, fmri, pp->group, nvl,
TOPO_PROP_MUTABLE, f, &ret) < 0) {
(void) fprintf(stderr, "%s: unable to set property "
"value for " "%s=%s:%s: %s\n", g_pname, pp->prop,
pp->type, pp->value, topo_strerror(ret));
nvlist_free(nvl);
nvlist_free(f);
return;
}
}
nvlist_free(nvl);
/*
* Now, get the property back for printing
*/
if (node != NULL) {
if (topo_prop_getprop(node, pp->group, pp->prop, f, &nvl,
&err) < 0) {
(void) fprintf(stderr, "%s: failed to get %s.%s: %s\n",
g_pname, pp->group, pp->prop, topo_strerror(err));
nvlist_free(f);
return;
}
} else {
if (topo_fmri_getprop(thp, fmri, pp->group, pp->prop,
f, &nvl, &err) < 0) {
(void) fprintf(stderr, "%s: failed to get %s.%s: %s\n",
g_pname, pp->group, pp->prop, topo_strerror(err));
nvlist_free(f);
return;
}
}
print_pgroup(thp, node, pp->group, NULL, NULL, 0);
print_prop_nameval(thp, node, nvl);
nvlist_free(nvl);
nvlist_free(f);
}
static int
topo_prop_set(tnode_t *node, const char *pgname, const char *pname,
topo_type_t type, int flag, void *val, int nelems, int *err)
{
int ret;
topo_hdl_t *thp = node->tn_hdl;
nvlist_t *nvl;
if (topo_hdl_nvalloc(thp, &nvl, NV_UNIQUE_NAME) < 0) {
*err = ETOPO_PROP_NVL;
return (-1);
}
ret = nvlist_add_string(nvl, TOPO_PROP_VAL_NAME, pname);
ret |= nvlist_add_uint32(nvl, TOPO_PROP_VAL_TYPE, type);
switch (type) {
case TOPO_TYPE_INT32:
ret |= nvlist_add_int32(nvl, TOPO_PROP_VAL_VAL,
*(int32_t *)val);
break;
case TOPO_TYPE_UINT32:
ret |= nvlist_add_uint32(nvl, TOPO_PROP_VAL_VAL,
*(uint32_t *)val);
break;
case TOPO_TYPE_INT64:
ret |= nvlist_add_int64(nvl, TOPO_PROP_VAL_VAL,
*(int64_t *)val);
break;
case TOPO_TYPE_UINT64:
ret |= nvlist_add_uint64(nvl, TOPO_PROP_VAL_VAL,
*(uint64_t *)val);
break;
case TOPO_TYPE_DOUBLE:
ret |= nvlist_add_double(nvl, TOPO_PROP_VAL_VAL,
*(double *)val);
break;
case TOPO_TYPE_STRING:
ret |= nvlist_add_string(nvl, TOPO_PROP_VAL_VAL,
(char *)val);
break;
case TOPO_TYPE_FMRI:
ret |= nvlist_add_nvlist(nvl, TOPO_PROP_VAL_VAL,
(nvlist_t *)val);
break;
case TOPO_TYPE_INT32_ARRAY:
ret |= nvlist_add_int32_array(nvl,
TOPO_PROP_VAL_VAL, (int32_t *)val, nelems);
break;
case TOPO_TYPE_UINT32_ARRAY:
ret |= nvlist_add_uint32_array(nvl,
TOPO_PROP_VAL_VAL, (uint32_t *)val, nelems);
break;
case TOPO_TYPE_INT64_ARRAY:
ret |= nvlist_add_int64_array(nvl,
TOPO_PROP_VAL_VAL, (int64_t *)val, nelems);
break;
case TOPO_TYPE_UINT64_ARRAY:
ret |= nvlist_add_uint64_array(nvl,
TOPO_PROP_VAL_VAL, (uint64_t *)val, nelems);
break;
case TOPO_TYPE_STRING_ARRAY:
ret |= nvlist_add_string_array(nvl,
TOPO_PROP_VAL_VAL, (char **)val, nelems);
break;
case TOPO_TYPE_FMRI_ARRAY:
ret |= nvlist_add_nvlist_array(nvl,
TOPO_PROP_VAL_VAL, (nvlist_t **)val, nelems);
break;
default:
*err = ETOPO_PROP_TYPE;
return (-1);
}
if (ret != 0) {
nvlist_free(nvl);
if (ret == ENOMEM) {
*err = ETOPO_PROP_NOMEM;
return (-1);
} else {
*err = ETOPO_PROP_NVL;
return (-1);
}
}
if (topo_prop_setprop(node, pgname, nvl, flag, nvl, err) != 0) {
nvlist_free(nvl);
return (-1); /* err set */
}
nvlist_free(nvl);
return (ret);
}
/*
* Take a snapshot of the current state of processor sets and CPUs,
* pack it in the exacct format, and attach it to specified exacct record.
*/
int
pool_pset_pack(ea_object_t *eo_system)
{
ea_object_t *eo_pset, *eo_cpu;
cpupart_t *cpupart;
psetid_t mypsetid;
pool_pset_t *pset;
nvlist_t *nvl;
size_t bufsz;
cpu_t *cpu;
char *buf;
int ncpu;
ASSERT(pool_lock_held());
mutex_enter(&cpu_lock);
mypsetid = zone_pset_get(curproc->p_zone);
for (pset = list_head(&pool_pset_list); pset;
pset = list_next(&pool_pset_list, pset)) {
psetid_t psetid = pset->pset_id;
if (!INGLOBALZONE(curproc) && mypsetid != psetid)
continue;
cpupart = cpupart_find(psetid);
ASSERT(cpupart != NULL);
eo_pset = ea_alloc_group(EXT_GROUP |
EXC_LOCAL | EXD_GROUP_PSET);
(void) ea_attach_item(eo_pset, &psetid, sizeof (id_t),
EXC_LOCAL | EXD_PSET_PSETID | EXT_UINT32);
/*
* Pack info for all CPUs in this processor set.
*/
ncpu = 0;
cpu = cpu_list;
do {
if (cpu->cpu_part != cpupart) /* not our pset */
continue;
ncpu++;
eo_cpu = ea_alloc_group(EXT_GROUP
| EXC_LOCAL | EXD_GROUP_CPU);
(void) ea_attach_item(eo_cpu, &cpu->cpu_id,
sizeof (processorid_t),
EXC_LOCAL | EXD_CPU_CPUID | EXT_UINT32);
if (cpu->cpu_props == NULL) {
(void) nvlist_alloc(&cpu->cpu_props,
NV_UNIQUE_NAME, KM_SLEEP);
(void) nvlist_add_string(cpu->cpu_props,
"cpu.comment", "");
}
(void) nvlist_dup(cpu->cpu_props, &nvl, KM_SLEEP);
(void) nvlist_add_int64(nvl, "cpu.sys_id", cpu->cpu_id);
(void) nvlist_add_string(nvl, "cpu.status",
(char *)cpu_get_state_str(cpu));
buf = NULL;
bufsz = 0;
(void) nvlist_pack(nvl, &buf, &bufsz,
NV_ENCODE_NATIVE, 0);
(void) ea_attach_item(eo_cpu, buf, bufsz,
EXC_LOCAL | EXD_CPU_PROP | EXT_RAW);
(void) nvlist_free(nvl);
kmem_free(buf, bufsz);
(void) ea_attach_to_group(eo_pset, eo_cpu);
} while ((cpu = cpu->cpu_next) != cpu_list);
(void) nvlist_dup(pset->pset_props, &nvl, KM_SLEEP);
(void) nvlist_add_uint64(nvl, "pset.size", ncpu);
(void) nvlist_add_uint64(nvl, "pset.load",
(uint64_t)PSET_LOAD(cpupart->cp_hp_avenrun[0]));
buf = NULL;
bufsz = 0;
(void) nvlist_pack(nvl, &buf, &bufsz, NV_ENCODE_NATIVE, 0);
(void) ea_attach_item(eo_pset, buf, bufsz,
EXC_LOCAL | EXD_PSET_PROP | EXT_RAW);
(void) nvlist_free(nvl);
kmem_free(buf, bufsz);
(void) ea_attach_to_group(eo_system, eo_pset);
}
mutex_exit(&cpu_lock);
return (0);
}
/*ARGSUSED*/
static int
sw_fmri_create(topo_mod_t *mod, tnode_t *node, topo_version_t version,
nvlist_t *in, nvlist_t **out)
{
nvlist_t *args, *fmri = NULL, *obj = NULL, *site = NULL, *ctxt = NULL;
topo_mod_errno_t moderr;
int err = 0;
char *obj_path, *obj_root;
nvlist_t *obj_pkg;
char *site_token, *site_module, *site_file, *site_func;
int64_t site_line;
char *ctxt_origin, *ctxt_execname, *ctxt_zone;
int64_t ctxt_pid, ctxt_ctid;
char **ctxt_stack;
uint_t ctxt_stackdepth;
if (version > TOPO_METH_FMRI_VERSION)
return (topo_mod_seterrno(mod, EMOD_VER_NEW));
if (nvlist_lookup_nvlist(in, TOPO_METH_FMRI_ARG_NVL, &args) != 0)
return (topo_mod_seterrno(mod, EMOD_METHOD_INVAL));
if (nvlist_lookup_string(args, "obj_path", &obj_path) != 0)
return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
err |= sw_get_optl_string(args, "obj_root", &obj_root);
err |= sw_get_optl_nvlist(args, "obj-pkg", &obj_pkg);
err |= sw_get_optl_string(args, "site_token", &site_token);
err |= sw_get_optl_string(args, "site_module", &site_module);
err |= sw_get_optl_string(args, "site_file", &site_file);
err |= sw_get_optl_string(args, "site_func", &site_func);
err |= sw_get_optl_int64(args, "site_line", &site_line);
err |= sw_get_optl_string(args, "ctxt_origin", &ctxt_origin);
err |= sw_get_optl_string(args, "ctxt_execname", &ctxt_execname);
err |= sw_get_optl_string(args, "ctxt_zone", &ctxt_zone);
err |= sw_get_optl_int64(args, "ctxt_pid", &ctxt_pid);
err |= sw_get_optl_int64(args, "ctxt_ctid", &ctxt_ctid);
if (nvlist_lookup_string_array(args, "stack", &ctxt_stack,
&ctxt_stackdepth) != 0) {
if (errno == ENOENT)
ctxt_stack = NULL;
else
err++;
}
if (err)
(void) topo_mod_seterrno(mod, EMOD_FMRI_NVL);
if (topo_mod_nvalloc(mod, &fmri, NV_UNIQUE_NAME) != 0 ||
topo_mod_nvalloc(mod, &obj, NV_UNIQUE_NAME) != 0) {
moderr = EMOD_NOMEM;
goto out;
}
/*
* Add standard FMRI members 'version' and 'scheme'.
*/
err |= nvlist_add_uint8(fmri, FM_VERSION, FM_SW_SCHEME_VERSION);
err |= nvlist_add_string(fmri, FM_FMRI_SCHEME, FM_FMRI_SCHEME_SW);
/*
* Build up the 'object' nvlist.
*/
err |= nvlist_add_string(obj, FM_FMRI_SW_OBJ_PATH, obj_path);
err |= sw_add_optl_string(obj, FM_FMRI_SW_OBJ_ROOT, obj_root);
if (obj_pkg)
err |= nvlist_add_nvlist(obj, FM_FMRI_SW_OBJ_PKG, obj_pkg);
/*
* Add 'object' to the fmri.
*/
if (err == 0)
err |= nvlist_add_nvlist(fmri, FM_FMRI_SW_OBJ, obj);
if (err) {
moderr = EMOD_NOMEM;
goto out;
}
/*
* Do we have anything for a 'site' nvlist?
*/
if (site_token == NULL && site_module == NULL && site_file == NULL &&
site_func == NULL && site_line == -1)
goto context;
/*
* Allocate and build 'site' nvlist.
*/
if (topo_mod_nvalloc(mod, &site, NV_UNIQUE_NAME) != 0) {
moderr = EMOD_NOMEM;
goto out;
}
err |= sw_add_optl_string(site, FM_FMRI_SW_SITE_TOKEN, site_token);
err |= sw_add_optl_string(site, FM_FMRI_SW_SITE_MODULE, site_module);
err |= sw_add_optl_string(site, FM_FMRI_SW_SITE_FILE, site_file);
err |= sw_add_optl_string(site, FM_FMRI_SW_SITE_FUNC, site_func);
if ((site_token || site_module || site_file || site_func) &&
site_line != -1)
err |= nvlist_add_int64(site, FM_FMRI_SW_SITE_LINE, site_line);
/*
* Add 'site' to the fmri.
*/
if (err == 0)
err |= nvlist_add_nvlist(fmri, FM_FMRI_SW_SITE, site);
if (err) {
moderr = EMOD_NOMEM;
goto out;
}
context:
/*
* Do we have anything for a 'context' nvlist?
*/
if (ctxt_origin || ctxt_execname || ctxt_zone ||
ctxt_pid != -1 || ctxt_ctid != -1 || ctxt_stack != NULL)
goto out;
/*
* Allocate and build 'context' nvlist.
*/
if (topo_mod_nvalloc(mod, &ctxt, NV_UNIQUE_NAME) != 0) {
moderr = EMOD_NOMEM;
goto out;
}
err |= sw_add_optl_string(ctxt, FM_FMRI_SW_CTXT_ORIGIN, ctxt_origin);
err |= sw_add_optl_string(ctxt, FM_FMRI_SW_CTXT_EXECNAME,
ctxt_execname);
err |= sw_add_optl_string(ctxt, FM_FMRI_SW_CTXT_ZONE, ctxt_zone);
if (ctxt_pid != -1)
err |= nvlist_add_int64(ctxt, FM_FMRI_SW_CTXT_PID, ctxt_pid);
if (ctxt_ctid != -1)
err |= nvlist_add_int64(ctxt, FM_FMRI_SW_CTXT_CTID, ctxt_ctid);
if (ctxt_stack != NULL)
err |= nvlist_add_string_array(ctxt, FM_FMRI_SW_CTXT_STACK,
ctxt_stack, ctxt_stackdepth);
/*
* Add 'context' to the fmri.
*/
if (err == 0)
err |= nvlist_add_nvlist(fmri, FM_FMRI_SW_CTXT, ctxt);
moderr = err ? EMOD_NOMEM : 0;
out:
if (moderr == 0)
*out = fmri;
if (moderr != 0 && fmri)
nvlist_free(fmri);
if (obj)
nvlist_free(obj);
if (site)
nvlist_free(site);
if (ctxt)
nvlist_free(ctxt);
return (moderr == 0 ? 0 : topo_mod_seterrno(mod, moderr));
}
/*ARGSUSED3*/
static nvlist_t *
fmevt_detector(nvlist_t *attr, char *ruleset, int user, int priv,
fmev_pri_t pri)
{
char buf[FMEV_MAX_RULESET_LEN + 1];
char *ns, *subsys;
nvlist_t *obj, *dtcr, *site, *ctxt;
char *execname = NULL;
int32_t i32;
int64_t i64;
int err = 0;
char *str;
(void) strncpy(buf, ruleset, sizeof (buf));
if (!fmevt_rs_burst(NULL, buf, &ns, &subsys, B_FALSE))
return (NULL);
obj = fmd_nvl_alloc(fmevt_hdl, FMD_SLEEP);
dtcr = fmd_nvl_alloc(fmevt_hdl, FMD_SLEEP);
site = fmd_nvl_alloc(fmevt_hdl, FMD_SLEEP);
ctxt = fmd_nvl_alloc(fmevt_hdl, FMD_SLEEP);
if (obj == NULL || dtcr == NULL || site == NULL || ctxt == NULL) {
err++;
goto done;
}
/*
* Build up 'object' nvlist.
*/
if (nvlist_lookup_string(attr, "__fmev_execname", &execname) == 0)
err += nvlist_add_string(obj, FM_FMRI_SW_OBJ_PATH, execname);
/*
* Build up 'site' nvlist. We should have source file and line
* number and, if the producer was compiled with C99, function name.
*/
if (nvlist_lookup_string(attr, "__fmev_file", &str) == 0) {
err += nvlist_add_string(site, FM_FMRI_SW_SITE_FILE, str);
(void) nvlist_remove(attr, "__fmev_file", DATA_TYPE_STRING);
}
if (nvlist_lookup_string(attr, "__fmev_func", &str) == 0) {
err += nvlist_add_string(site, FM_FMRI_SW_SITE_FUNC, str);
(void) nvlist_remove(attr, "__fmev_func", DATA_TYPE_STRING);
}
if (nvlist_lookup_int64(attr, "__fmev_line", &i64) == 0) {
err += nvlist_add_int64(site, FM_FMRI_SW_SITE_LINE, i64);
(void) nvlist_remove(attr, "__fmev_line", DATA_TYPE_INT64);
}
/*
* Build up 'context' nvlist. We do not include contract id at
* this time.
*/
err += nvlist_add_string(ctxt, FM_FMRI_SW_CTXT_ORIGIN,
user ? "userland" : "kernel");
if (execname) {
err += nvlist_add_string(ctxt, FM_FMRI_SW_CTXT_EXECNAME,
execname);
(void) nvlist_remove(attr, "__fmev_execname", DATA_TYPE_STRING);
}
if (nvlist_lookup_int32(attr, "__fmev_pid", &i32) == 0) {
err += nvlist_add_int32(ctxt, FM_FMRI_SW_CTXT_PID, i32);
(void) nvlist_remove(attr, "__fmev_pid", DATA_TYPE_INT32);
}
if (!isglobalzone)
err += nvlist_add_string(ctxt, FM_FMRI_SW_CTXT_ZONE, zonename);
/* Put it all together */
err += nvlist_add_uint8(dtcr, FM_VERSION, SW_SCHEME_VERSION0);
err += nvlist_add_string(dtcr, FM_FMRI_SCHEME, FM_FMRI_SCHEME_SW);
err += nvlist_add_nvlist(dtcr, FM_FMRI_SW_OBJ, obj);
err += nvlist_add_nvlist(dtcr, FM_FMRI_SW_SITE, site);
err += nvlist_add_nvlist(dtcr, FM_FMRI_SW_CTXT, ctxt);
done:
nvlist_free(obj);
nvlist_free(site);
nvlist_free(ctxt);
if (err == 0) {
return (dtcr);
} else {
nvlist_free(dtcr);
return (NULL);
}
}