negcache.c revision 950716d2087446205c84f00b371f468d6ead1ec2
/*
SSSD
NSS Responder
Copyright (C) Simo Sorce <ssorce@redhat.com> 2008
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "util/util.h"
#include "confdb/confdb.h"
#include "responder/common/negcache_files.h"
#include "responder/common/responder.h"
#include "responder/common/negcache.h"
#include <fcntl.h>
#include <time.h>
#include "tdb.h"
#define NC_ENTRY_PREFIX "NCE/"
#define NC_USER_PREFIX NC_ENTRY_PREFIX"USER"
#define NC_GROUP_PREFIX NC_ENTRY_PREFIX"GROUP"
#define NC_NETGROUP_PREFIX NC_ENTRY_PREFIX"NETGR"
#define NC_SERVICE_PREFIX NC_ENTRY_PREFIX"SERVICE"
#define NC_UID_PREFIX NC_ENTRY_PREFIX"UID"
#define NC_GID_PREFIX NC_ENTRY_PREFIX"GID"
#define NC_SID_PREFIX NC_ENTRY_PREFIX"SID"
#define NC_CERT_PREFIX NC_ENTRY_PREFIX"CERT"
struct sss_nc_ctx {
struct tdb_context *tdb;
uint32_t timeout;
uint32_t local_timeout;
};
typedef int (*ncache_set_byname_fn_t)(struct sss_nc_ctx *, bool,
const char *, const char *);
static int sss_ncache_set_ent(struct sss_nc_ctx *ctx, bool permanent,
struct sss_domain_info *dom, const char *name,
ncache_set_byname_fn_t setter);
static int string_to_tdb_data(char *str, TDB_DATA *ret)
{
if (!str || !ret) return EINVAL;
ret->dptr = (uint8_t *)str;
ret->dsize = strlen(str)+1;
return EOK;
}
int sss_ncache_init(TALLOC_CTX *memctx, uint32_t timeout,
uint32_t local_timeout, struct sss_nc_ctx **_ctx)
{
struct sss_nc_ctx *ctx;
ctx = talloc_zero(memctx, struct sss_nc_ctx);
if (!ctx) return ENOMEM;
errno = 0;
/* open a memory only tdb with default hash size */
ctx->tdb = tdb_open("memcache", 0, TDB_INTERNAL, O_RDWR|O_CREAT, 0);
if (!ctx->tdb) return errno;
ctx->timeout = timeout;
ctx->local_timeout = local_timeout;
*_ctx = ctx;
return EOK;
};
uint32_t sss_ncache_get_timeout(struct sss_nc_ctx *ctx)
{
return ctx->timeout;
}
static int sss_ncache_check_str(struct sss_nc_ctx *ctx, char *str)
{
TDB_DATA key;
TDB_DATA data;
unsigned long long int timestamp;
bool expired = false;
char *ep;
int ret;
DEBUG(SSSDBG_TRACE_INTERNAL, "Checking negative cache for [%s]\n", str);
data.dptr = NULL;
ret = string_to_tdb_data(str, &key);
if (ret != EOK) goto done;
data = tdb_fetch(ctx->tdb, key);
if (!data.dptr) {
ret = ENOENT;
goto done;
}
errno = 0;
timestamp = strtoull((const char *)data.dptr, &ep, 10);
if (errno != 0 || *ep != '\0') {
/* Malformed entry, remove it and return no entry */
expired = true;
goto done;
}
if (timestamp == 0) {
/* a 0 timestamp means this is a permanent entry */
ret = EEXIST;
goto done;
}
if (timestamp >= time(NULL)) {
/* still valid */
ret = EEXIST;
goto done;
}
expired = true;
done:
if (expired) {
/* expired, remove and return no entry */
tdb_delete(ctx->tdb, key);
ret = ENOENT;
}
free(data.dptr);
return ret;
}
static int sss_ncache_set_str(struct sss_nc_ctx *ctx, char *str,
bool permanent, bool use_local_negative)
{
TDB_DATA key;
TDB_DATA data;
char *timest;
unsigned long long int timell;
int ret;
ret = string_to_tdb_data(str, &key);
if (ret != EOK) return ret;
if (permanent) {
timest = talloc_strdup(ctx, "0");
} else {
if (use_local_negative == true && ctx->local_timeout > ctx->timeout) {
timell = ctx->local_timeout;
} else {
/* EOK is tested in cwrap based unit test */
if (ctx->timeout == 0) {
return EOK;
}
timell = ctx->timeout;
}
timell += (unsigned long long int)time(NULL);
timest = talloc_asprintf(ctx, "%llu", timell);
}
if (!timest) return ENOMEM;
ret = string_to_tdb_data(timest, &data);
if (ret != EOK) goto done;
DEBUG(SSSDBG_TRACE_FUNC, "Adding [%s] to negative cache%s\n",
str, permanent?" permanently":"");
ret = tdb_store(ctx->tdb, key, data, TDB_REPLACE);
if (ret != 0) {
DEBUG(SSSDBG_CRIT_FAILURE, "Negative cache failed to set entry: [%s]\n",
tdb_errorstr(ctx->tdb));
ret = EFAULT;
}
done:
talloc_free(timest);
return ret;
}
static int sss_ncache_check_user_int(struct sss_nc_ctx *ctx, const char *domain,
const char *name)
{
char *str;
int ret;
if (!name || !*name) return EINVAL;
str = talloc_asprintf(ctx, "%s/%s/%s", NC_USER_PREFIX, domain, name);
if (!str) return ENOMEM;
ret = sss_ncache_check_str(ctx, str);
talloc_free(str);
return ret;
}
static int sss_ncache_check_group_int(struct sss_nc_ctx *ctx,
const char *domain, const char *name)
{
char *str;
int ret;
if (!name || !*name) return EINVAL;
str = talloc_asprintf(ctx, "%s/%s/%s", NC_GROUP_PREFIX, domain, name);
if (!str) return ENOMEM;
ret = sss_ncache_check_str(ctx, str);
talloc_free(str);
return ret;
}
static int sss_ncache_check_netgr_int(struct sss_nc_ctx *ctx,
const char *domain, const char *name)
{
char *str;
int ret;
if (!name || !*name) return EINVAL;
str = talloc_asprintf(ctx, "%s/%s/%s", NC_NETGROUP_PREFIX, domain, name);
if (!str) return ENOMEM;
ret = sss_ncache_check_str(ctx, str);
talloc_free(str);
return ret;
}
static int sss_ncache_check_service_int(struct sss_nc_ctx *ctx,
const char *domain,
const char *name)
{
char *str;
int ret;
if (!name || !*name) return EINVAL;
str = talloc_asprintf(ctx, "%s/%s/%s",
NC_SERVICE_PREFIX,
domain,
name);
if (!str) return ENOMEM;
ret = sss_ncache_check_str(ctx, str);
talloc_free(str);
return ret;
}
typedef int (*ncache_check_byname_fn_t)(struct sss_nc_ctx *, const char *,
const char *);
static int sss_cache_check_ent(struct sss_nc_ctx *ctx,
struct sss_domain_info *dom, const char *name,
ncache_check_byname_fn_t checker)
{
char *lower;
errno_t ret;
if (dom->case_sensitive == false) {
lower = sss_tc_utf8_str_tolower(ctx, name);
if (!lower) return ENOMEM;
ret = checker(ctx, dom->name, lower);
talloc_free(lower);
} else {
ret = checker(ctx, dom->name, name);
}
return ret;
}
int sss_ncache_check_user(struct sss_nc_ctx *ctx, struct sss_domain_info *dom,
const char *name)
{
return sss_cache_check_ent(ctx, dom, name, sss_ncache_check_user_int);
}
int sss_ncache_check_group(struct sss_nc_ctx *ctx, struct sss_domain_info *dom,
const char *name)
{
return sss_cache_check_ent(ctx, dom, name, sss_ncache_check_group_int);
}
int sss_ncache_check_netgr(struct sss_nc_ctx *ctx, struct sss_domain_info *dom,
const char *name)
{
return sss_cache_check_ent(ctx, dom, name, sss_ncache_check_netgr_int);
}
static int sss_ncache_set_service_int(struct sss_nc_ctx *ctx, bool permanent,
const char *domain, const char *name)
{
char *str;
int ret;
if (!name || !*name) return EINVAL;
str = talloc_asprintf(ctx, "%s/%s/%s", NC_SERVICE_PREFIX, domain, name);
if (!str) return ENOMEM;
ret = sss_ncache_set_str(ctx, str, permanent, false);
talloc_free(str);
return ret;
}
int sss_ncache_set_service_name(struct sss_nc_ctx *ctx, bool permanent,
struct sss_domain_info *dom,
const char *name, const char *proto)
{
int ret;
char *service_and_protocol = talloc_asprintf(ctx, "%s:%s",
name,
proto ? proto : "<ANY>");
if (!service_and_protocol) return ENOMEM;
ret = sss_ncache_set_ent(ctx, permanent, dom,
service_and_protocol,
sss_ncache_set_service_int);
talloc_free(service_and_protocol);
return ret;
}
int sss_ncache_check_service(struct sss_nc_ctx *ctx,struct sss_domain_info *dom,
const char *name, const char *proto)
{
int ret;
char *service_and_protocol = talloc_asprintf(ctx, "%s:%s",
name,
proto ? proto : "<ANY>");
if (!service_and_protocol) return ENOMEM;
ret = sss_cache_check_ent(ctx, dom, service_and_protocol,
sss_ncache_check_service_int);
talloc_free(service_and_protocol);
return ret;
}
int sss_ncache_set_service_port(struct sss_nc_ctx *ctx, bool permanent,
struct sss_domain_info *dom,
uint16_t port, const char *proto)
{
int ret;
char *service_and_protocol = talloc_asprintf(ctx, "%ul:%s",
port,
proto ? proto : "<ANY>");
if (!service_and_protocol) return ENOMEM;
ret = sss_ncache_set_ent(ctx, permanent, dom,
service_and_protocol,
sss_ncache_set_service_int);
talloc_free(service_and_protocol);
return ret;
}
int sss_ncache_check_service_port(struct sss_nc_ctx *ctx,
struct sss_domain_info *dom,
uint16_t port,
const char *proto)
{
int ret;
char *service_and_protocol = talloc_asprintf(ctx, "%ul:%s",
port,
proto ? proto : "<ANY>");
if (!service_and_protocol) return ENOMEM;
ret = sss_cache_check_ent(ctx, dom, service_and_protocol,
sss_ncache_check_service_int);
talloc_free(service_and_protocol);
return ret;
}
int sss_ncache_check_uid(struct sss_nc_ctx *ctx, struct sss_domain_info *dom,
uid_t uid)
{
char *str;
int ret;
if (dom != NULL) {
str = talloc_asprintf(ctx, "%s/%s/%"SPRIuid, NC_UID_PREFIX, dom->name,
uid);
} else {
str = talloc_asprintf(ctx, "%s/%"SPRIuid, NC_UID_PREFIX, uid);
}
if (!str) return ENOMEM;
ret = sss_ncache_check_str(ctx, str);
talloc_free(str);
return ret;
}
int sss_ncache_check_gid(struct sss_nc_ctx *ctx, struct sss_domain_info *dom,
gid_t gid)
{
char *str;
int ret;
if (dom != NULL) {
str = talloc_asprintf(ctx, "%s/%s/%"SPRIgid, NC_GID_PREFIX, dom->name,
gid);
} else {
str = talloc_asprintf(ctx, "%s/%"SPRIgid, NC_GID_PREFIX, gid);
}
if (!str) return ENOMEM;
ret = sss_ncache_check_str(ctx, str);
talloc_free(str);
return ret;
}
int sss_ncache_check_sid(struct sss_nc_ctx *ctx, const char *sid)
{
char *str;
int ret;
str = talloc_asprintf(ctx, "%s/%s", NC_SID_PREFIX, sid);
if (!str) return ENOMEM;
ret = sss_ncache_check_str(ctx, str);
talloc_free(str);
return ret;
}
int sss_ncache_check_cert(struct sss_nc_ctx *ctx, const char *cert)
{
char *str;
int ret;
str = talloc_asprintf(ctx, "%s/%s", NC_CERT_PREFIX, cert);
if (!str) return ENOMEM;
ret = sss_ncache_check_str(ctx, str);
talloc_free(str);
return ret;
}
static int sss_ncache_set_user_int(struct sss_nc_ctx *ctx, bool permanent,
const char *domain, const char *name)
{
bool use_local_negative = false;
char *str;
int ret;
if (!name || !*name) return EINVAL;
str = talloc_asprintf(ctx, "%s/%s/%s", NC_USER_PREFIX, domain, name);
if (!str) return ENOMEM;
if (ctx->local_timeout > 0) {
use_local_negative = is_user_local_by_name(name);
}
ret = sss_ncache_set_str(ctx, str, permanent, use_local_negative);
talloc_free(str);
return ret;
}
static int sss_ncache_set_group_int(struct sss_nc_ctx *ctx, bool permanent,
const char *domain, const char *name)
{
bool use_local_negative = false;
char *str;
int ret;
if (!name || !*name) return EINVAL;
str = talloc_asprintf(ctx, "%s/%s/%s", NC_GROUP_PREFIX, domain, name);
if (!str) return ENOMEM;
if (ctx->local_timeout > 0) {
use_local_negative = is_group_local_by_name(name);
}
ret = sss_ncache_set_str(ctx, str, permanent, use_local_negative);
talloc_free(str);
return ret;
}
static int sss_ncache_set_netgr_int(struct sss_nc_ctx *ctx, bool permanent,
const char *domain, const char *name)
{
char *str;
int ret;
if (!name || !*name) return EINVAL;
str = talloc_asprintf(ctx, "%s/%s/%s", NC_NETGROUP_PREFIX, domain, name);
if (!str) return ENOMEM;
ret = sss_ncache_set_str(ctx, str, permanent, false);
talloc_free(str);
return ret;
}
static int sss_ncache_set_ent(struct sss_nc_ctx *ctx, bool permanent,
struct sss_domain_info *dom, const char *name,
ncache_set_byname_fn_t setter)
{
char *lower;
errno_t ret;
if (dom->case_sensitive == false) {
lower = sss_tc_utf8_str_tolower(ctx, name);
if (!lower) return ENOMEM;
ret = setter(ctx, permanent, dom->name, lower);
talloc_free(lower);
} else {
ret = setter(ctx, permanent, dom->name, name);
}
return ret;
}
int sss_ncache_set_user(struct sss_nc_ctx *ctx, bool permanent,
struct sss_domain_info *dom, const char *name)
{
return sss_ncache_set_ent(ctx, permanent, dom, name, sss_ncache_set_user_int);
}
int sss_ncache_set_group(struct sss_nc_ctx *ctx, bool permanent,
struct sss_domain_info *dom, const char *name)
{
return sss_ncache_set_ent(ctx, permanent, dom, name, sss_ncache_set_group_int);
}
int sss_ncache_set_netgr(struct sss_nc_ctx *ctx, bool permanent,
struct sss_domain_info *dom, const char *name)
{
return sss_ncache_set_ent(ctx, permanent, dom, name, sss_ncache_set_netgr_int);
}
int sss_ncache_set_uid(struct sss_nc_ctx *ctx, bool permanent,
struct sss_domain_info *dom, uid_t uid)
{
bool use_local_negative = false;
char *str;
int ret;
if (dom != NULL) {
str = talloc_asprintf(ctx, "%s/%s/%"SPRIuid, NC_UID_PREFIX, dom->name,
uid);
} else {
str = talloc_asprintf(ctx, "%s/%"SPRIuid, NC_UID_PREFIX, uid);
}
if (!str) return ENOMEM;
if (ctx->local_timeout > 0) {
use_local_negative = is_user_local_by_uid(uid);
}
ret = sss_ncache_set_str(ctx, str, permanent, use_local_negative);
talloc_free(str);
return ret;
}
int sss_ncache_set_gid(struct sss_nc_ctx *ctx, bool permanent,
struct sss_domain_info *dom, gid_t gid)
{
bool use_local_negative = false;
char *str;
int ret;
if (dom != NULL) {
str = talloc_asprintf(ctx, "%s/%s/%"SPRIgid, NC_GID_PREFIX, dom->name,
gid);
} else {
str = talloc_asprintf(ctx, "%s/%"SPRIgid, NC_GID_PREFIX, gid);
}
if (!str) return ENOMEM;
if (ctx->local_timeout > 0) {
use_local_negative = is_group_local_by_gid(gid);
}
ret = sss_ncache_set_str(ctx, str, permanent, use_local_negative);
talloc_free(str);
return ret;
}
int sss_ncache_set_sid(struct sss_nc_ctx *ctx, bool permanent, const char *sid)
{
char *str;
int ret;
str = talloc_asprintf(ctx, "%s/%s", NC_SID_PREFIX, sid);
if (!str) return ENOMEM;
ret = sss_ncache_set_str(ctx, str, permanent, false);
talloc_free(str);
return ret;
}
int sss_ncache_set_cert(struct sss_nc_ctx *ctx, bool permanent,
const char *cert)
{
char *str;
int ret;
str = talloc_asprintf(ctx, "%s/%s", NC_CERT_PREFIX, cert);
if (!str) return ENOMEM;
ret = sss_ncache_set_str(ctx, str, permanent, false);
talloc_free(str);
return ret;
}
static int delete_permanent(struct tdb_context *tdb,
TDB_DATA key, TDB_DATA data, void *state)
{
unsigned long long int timestamp;
bool remove_key = false;
char *ep;
if (strncmp((char *)key.dptr,
NC_ENTRY_PREFIX, sizeof(NC_ENTRY_PREFIX) - 1) != 0) {
/* not interested in this key */
return 0;
}
errno = 0;
timestamp = strtoull((const char *)data.dptr, &ep, 10);
if (errno != 0 || *ep != '\0') {
/* Malformed entry, remove it */
remove_key = true;
goto done;
}
if (timestamp == 0) {
/* a 0 timestamp means this is a permanent entry */
remove_key = true;
}
done:
if (remove_key) {
return tdb_delete(tdb, key);
}
return 0;
}
int sss_ncache_reset_permanent(struct sss_nc_ctx *ctx)
{
int ret;
ret = tdb_traverse(ctx->tdb, delete_permanent, NULL);
if (ret < 0)
return EIO;
return EOK;
}
errno_t sss_ncache_prepopulate(struct sss_nc_ctx *ncache,
struct confdb_ctx *cdb,
struct resp_ctx *rctx)
{
errno_t ret;
bool filter_set = false;
char **filter_list = NULL;
char *name = NULL;
struct sss_domain_info *dom = NULL;
struct sss_domain_info *domain_list = rctx->domains;
char *domainname = NULL;
char *conf_path = NULL;
TALLOC_CTX *tmpctx = talloc_new(NULL);
int i;
char *fqname = NULL;
if (tmpctx == NULL) {
return ENOMEM;
}
/* Populate domain-specific negative cache entries */
for (dom = domain_list; dom; dom = get_next_domain(dom, 0)) {
conf_path = talloc_asprintf(tmpctx, CONFDB_DOMAIN_PATH_TMPL,
dom->name);
if (!conf_path) {
ret = ENOMEM;
goto done;
}
talloc_zfree(filter_list);
ret = confdb_get_string_as_list(cdb, tmpctx, conf_path,
CONFDB_NSS_FILTER_USERS,
&filter_list);
if (ret == ENOENT) continue;
if (ret != EOK) goto done;
filter_set = true;
for (i = 0; (filter_list && filter_list[i]); i++) {
ret = sss_parse_name_for_domains(tmpctx, domain_list,
rctx->default_domain,
filter_list[i],
&domainname, &name);
if (ret == EAGAIN) {
DEBUG(SSSDBG_MINOR_FAILURE,
"cannot add [%s] to negcache because the required or "
"default domain are not known yet\n", filter_list[i]);
} else if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Invalid name in filterUsers list: [%s] (%d)\n",
filter_list[i], ret);
continue;
}
if (domainname && strcmp(domainname, dom->name)) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Mismatch between domain name (%s) and name "
"set in FQN (%s), skipping user %s\n",
dom->name, domainname, name);
continue;
}
fqname = sss_create_internal_fqname(tmpctx, name, dom->name);
if (fqname == NULL) {
continue;
}
ret = sss_ncache_set_user(ncache, true, dom, fqname);
talloc_zfree(fqname);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to store permanent user filter for [%s]"
" (%d [%s])\n", filter_list[i],
ret, strerror(ret));
continue;
}
}
}
ret = confdb_get_string_as_list(cdb, tmpctx, CONFDB_NSS_CONF_ENTRY,
CONFDB_NSS_FILTER_USERS, &filter_list);
if (ret == ENOENT) {
if (!filter_set) {
filter_list = talloc_array(tmpctx, char *, 2);
if (!filter_list) {
ret = ENOMEM;
goto done;
}
filter_list[0] = talloc_strdup(tmpctx, "root");
if (!filter_list[0]) {
ret = ENOMEM;
goto done;
}
filter_list[1] = NULL;
}
}
else if (ret != EOK) goto done;
for (i = 0; (filter_list && filter_list[i]); i++) {
ret = sss_parse_name_for_domains(tmpctx, domain_list,
rctx->default_domain, filter_list[i],
&domainname, &name);
if (ret == EAGAIN) {
DEBUG(SSSDBG_MINOR_FAILURE,
"Cannot add [%s] to negcache because the required or "
"default domain are not known yet\n", filter_list[i]);
} else if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Invalid name in filterUsers list: [%s] (%d)\n",
filter_list[i], ret);
continue;
}
if (domainname) {
dom = responder_get_domain(rctx, domainname);
if (!dom) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Invalid domain name [%s]\n", domainname);
continue;
}
fqname = sss_create_internal_fqname(tmpctx, name, dom->name);
if (fqname == NULL) {
continue;
}
ret = sss_ncache_set_user(ncache, true, dom, fqname);
talloc_zfree(fqname);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to store permanent user filter for [%s]"
" (%d [%s])\n", filter_list[i],
ret, strerror(ret));
continue;
}
} else {
for (dom = domain_list; dom; dom = get_next_domain(dom, 0)) {
fqname = sss_create_internal_fqname(tmpctx, name, dom->name);
if (fqname == NULL) {
continue;
}
ret = sss_ncache_set_user(ncache, true, dom, fqname);
talloc_zfree(fqname);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to store permanent user filter for"
" [%s:%s] (%d [%s])\n",
dom->name, filter_list[i],
ret, strerror(ret));
continue;
}
}
}
}
filter_set = false;
for (dom = domain_list; dom; dom = get_next_domain(dom, 0)) {
conf_path = talloc_asprintf(tmpctx, CONFDB_DOMAIN_PATH_TMPL, dom->name);
if (!conf_path) {
ret = ENOMEM;
goto done;
}
talloc_zfree(filter_list);
ret = confdb_get_string_as_list(cdb, tmpctx, conf_path,
CONFDB_NSS_FILTER_GROUPS, &filter_list);
if (ret == ENOENT) continue;
if (ret != EOK) goto done;
filter_set = true;
for (i = 0; (filter_list && filter_list[i]); i++) {
ret = sss_parse_name(tmpctx, dom->names, filter_list[i],
&domainname, &name);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Invalid name in filterGroups list: [%s] (%d)\n",
filter_list[i], ret);
continue;
}
if (domainname && strcmp(domainname, dom->name)) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Mismatch between domain name (%s) and name "
"set in FQN (%s), skipping group %s\n",
dom->name, domainname, name);
continue;
}
fqname = sss_create_internal_fqname(tmpctx, name, dom->name);
if (fqname == NULL) {
continue;
}
ret = sss_ncache_set_group(ncache, true, dom, fqname);
talloc_zfree(fqname);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to store permanent group filter for [%s]"
" (%d [%s])\n", filter_list[i],
ret, strerror(ret));
continue;
}
}
}
ret = confdb_get_string_as_list(cdb, tmpctx, CONFDB_NSS_CONF_ENTRY,
CONFDB_NSS_FILTER_GROUPS, &filter_list);
if (ret == ENOENT) {
if (!filter_set) {
filter_list = talloc_array(tmpctx, char *, 2);
if (!filter_list) {
ret = ENOMEM;
goto done;
}
filter_list[0] = talloc_strdup(tmpctx, "root");
if (!filter_list[0]) {
ret = ENOMEM;
goto done;
}
filter_list[1] = NULL;
}
}
else if (ret != EOK) goto done;
for (i = 0; (filter_list && filter_list[i]); i++) {
ret = sss_parse_name_for_domains(tmpctx, domain_list,
rctx->default_domain, filter_list[i],
&domainname, &name);
if (ret == EAGAIN) {
DEBUG(SSSDBG_MINOR_FAILURE,
"Cannot add [%s] to negcache because the required or "
"default domain are not known yet\n", filter_list[i]);
} else if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Invalid name in filterGroups list: [%s] (%d)\n",
filter_list[i], ret);
continue;
}
if (domainname) {
dom = responder_get_domain(rctx, domainname);
if (!dom) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Invalid domain name [%s]\n", domainname);
continue;
}
fqname = sss_create_internal_fqname(tmpctx, name, dom->name);
if (fqname == NULL) {
continue;
}
ret = sss_ncache_set_group(ncache, true, dom, fqname);
talloc_zfree(fqname);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to store permanent group filter for"
" [%s] (%d [%s])\n", filter_list[i],
ret, strerror(ret));
continue;
}
} else {
for (dom = domain_list; dom; dom = get_next_domain(dom, 0)) {
fqname = sss_create_internal_fqname(tmpctx, name, dom->name);
if (fqname == NULL) {
continue;
}
ret = sss_ncache_set_group(ncache, true, dom, fqname);
talloc_zfree(fqname);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to store permanent group filter for"
" [%s:%s] (%d [%s])\n",
dom->name, filter_list[i],
ret, strerror(ret));
continue;
}
}
}
}
ret = EOK;
done:
talloc_free(tmpctx);
return ret;
}
/* Reset permanent negcache after checking the domains */
errno_t sss_ncache_reset_repopulate_permanent(struct resp_ctx *rctx,
struct sss_nc_ctx *ncache)
{
int ret;
ret = sss_ncache_reset_permanent(ncache);
if (ret == EOK) {
ret = sss_ncache_prepopulate(ncache, rctx->cdb, rctx);
}
return ret;
}