ldap_common.c revision 087219897d8b8a92d7d33da3fa30883d40ad8cdb
98N/A/*
1592N/A SSSD
98N/A
98N/A LDAP Provider Common Functions
919N/A
919N/A Authors:
919N/A Simo Sorce <ssorce@redhat.com>
919N/A
919N/A Copyright (C) 2008-2010 Red Hat
919N/A
919N/A This program is free software; you can redistribute it and/or modify
919N/A it under the terms of the GNU General Public License as published by
919N/A the Free Software Foundation; either version 3 of the License, or
919N/A (at your option) any later version.
919N/A
919N/A This program is distributed in the hope that it will be useful,
919N/A but WITHOUT ANY WARRANTY; without even the implied warranty of
919N/A MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
919N/A GNU General Public License for more details.
919N/A
919N/A You should have received a copy of the GNU General Public License
98N/A along with this program. If not, see <http://www.gnu.org/licenses/>.
98N/A*/
98N/A
98N/A#include "providers/ldap/ldap_common.h"
493N/A#include "providers/fail_over.h"
98N/A#include "providers/ldap/sdap_async_private.h"
970N/A#include "providers/krb5/krb5_common.h"
970N/A#include "db/sysdb_sudo.h"
970N/A#include "db/sysdb_services.h"
970N/A#include "db/sysdb_autofs.h"
1549N/A
970N/A#include "util/sss_krb5.h"
98N/A#include "util/crypto/sss_crypto.h"
1549N/A
98N/A/* a fd the child process would log into */
911N/Aint ldap_child_debug_fd = -1;
1549N/A
1549N/Astruct dp_option default_basic_opts[] = {
1549N/A { "ldap_uri", DP_OPT_STRING, NULL_STRING, NULL_STRING },
911N/A { "ldap_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING },
98N/A { "ldap_default_bind_dn", DP_OPT_STRING, NULL_STRING, NULL_STRING },
98N/A { "ldap_default_authtok_type", DP_OPT_STRING, { "password" }, NULL_STRING},
98N/A { "ldap_default_authtok", DP_OPT_BLOB, NULL_BLOB, NULL_BLOB },
98N/A { "ldap_search_timeout", DP_OPT_NUMBER, { .number = 6 }, NULL_NUMBER },
98N/A { "ldap_network_timeout", DP_OPT_NUMBER, { .number = 6 }, NULL_NUMBER },
156N/A { "ldap_opt_timeout", DP_OPT_NUMBER, { .number = 6 }, NULL_NUMBER },
493N/A { "ldap_tls_reqcert", DP_OPT_STRING, { "hard" }, NULL_STRING },
493N/A { "ldap_user_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING },
98N/A { "ldap_user_search_scope", DP_OPT_STRING, { "sub" }, NULL_STRING },
98N/A { "ldap_user_search_filter", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1296N/A { "ldap_group_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1296N/A { "ldap_group_search_scope", DP_OPT_STRING, { "sub" }, NULL_STRING },
1296N/A { "ldap_group_search_filter", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1124N/A { "ldap_service_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1124N/A { "ldap_sudo_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1124N/A { "ldap_sudo_refresh_enabled", DP_OPT_BOOL, BOOL_FALSE, BOOL_FALSE },
1124N/A { "ldap_sudo_refresh_timeout", DP_OPT_NUMBER, { .number = 300 }, NULL_NUMBER },
1422N/A { "ldap_autofs_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1333N/A { "ldap_schema", DP_OPT_STRING, { "rfc2307" }, NULL_STRING },
1333N/A { "ldap_offline_timeout", DP_OPT_NUMBER, { .number = 60 }, NULL_NUMBER },
1333N/A { "ldap_force_upper_case_realm", DP_OPT_BOOL, BOOL_FALSE, BOOL_FALSE },
1089N/A { "ldap_enumeration_refresh_timeout", DP_OPT_NUMBER, { .number = 300 }, NULL_NUMBER },
1333N/A { "ldap_purge_cache_timeout", DP_OPT_NUMBER, { .number = 10800 }, NULL_NUMBER },
1089N/A { "ldap_tls_cacert", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1630N/A { "ldap_tls_cacertdir", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1630N/A { "ldap_tls_cert", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1630N/A { "ldap_tls_key", DP_OPT_STRING, NULL_STRING, NULL_STRING },
493N/A { "ldap_tls_cipher_suite", DP_OPT_STRING, NULL_STRING, NULL_STRING },
493N/A { "ldap_id_use_start_tls", DP_OPT_BOOL, BOOL_FALSE, BOOL_FALSE },
1451N/A { "ldap_sasl_mech", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1451N/A { "ldap_sasl_authid", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1451N/A { "ldap_sasl_realm", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1451N/A { "ldap_sasl_minssf", DP_OPT_NUMBER, { .number = -1 }, NULL_NUMBER },
1451N/A { "ldap_krb5_keytab", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1451N/A { "ldap_krb5_init_creds", DP_OPT_BOOL, BOOL_TRUE, BOOL_TRUE },
98N/A /* use the same parm name as the krb5 module so we set it only once */
1418N/A { "krb5_server", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1418N/A { "krb5_realm", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1418N/A { "krb5_canonicalize", DP_OPT_BOOL, BOOL_TRUE, BOOL_TRUE },
98N/A { "ldap_pwd_policy", DP_OPT_STRING, { "none" }, NULL_STRING },
98N/A { "ldap_referrals", DP_OPT_BOOL, BOOL_TRUE, BOOL_TRUE },
1124N/A { "account_cache_expiration", DP_OPT_NUMBER, { .number = 0 }, NULL_NUMBER },
1610N/A { "ldap_dns_service_name", DP_OPT_STRING, { SSS_LDAP_SRV_NAME }, NULL_STRING },
1124N/A { "ldap_krb5_ticket_lifetime", DP_OPT_NUMBER, { .number = (24 * 60 * 60) }, NULL_NUMBER },
1124N/A { "ldap_access_filter", DP_OPT_STRING, NULL_STRING, NULL_STRING },
98N/A { "ldap_netgroup_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING },
493N/A { "ldap_group_nesting_level", DP_OPT_NUMBER, { .number = 2 }, NULL_NUMBER },
1089N/A { "ldap_deref", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1089N/A { "ldap_account_expire_policy", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1089N/A { "ldap_access_order", DP_OPT_STRING, { "filter" }, NULL_STRING },
1089N/A { "ldap_chpass_uri", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1089N/A { "ldap_chpass_dns_service_name", DP_OPT_STRING, NULL_STRING, NULL_STRING },
1089N/A { "ldap_chpass_update_last_change", DP_OPT_BOOL, BOOL_FALSE, BOOL_FALSE },
1124N/A { "ldap_enumeration_search_timeout", DP_OPT_NUMBER, { .number = 60 }, NULL_NUMBER },
1592N/A /* Do not include ldap_auth_disable_tls_never_use_in_production in the
1451N/A * manpages or SSSDConfig API
1451N/A */
1610N/A { "ldap_auth_disable_tls_never_use_in_production", DP_OPT_BOOL, BOOL_FALSE, BOOL_FALSE },
1451N/A { "ldap_page_size", DP_OPT_NUMBER, { .number = 1000 }, NULL_NUMBER },
1451N/A { "ldap_deref_threshold", DP_OPT_NUMBER, { .number = 10 }, NULL_NUMBER },
1466N/A { "ldap_sasl_canonicalize", DP_OPT_BOOL, BOOL_FALSE, BOOL_FALSE },
1466N/A { "ldap_connection_expire_timeout", DP_OPT_NUMBER, { .number = 900 }, NULL_NUMBER },
1466N/A { "ldap_disable_paging", DP_OPT_BOOL, BOOL_FALSE, BOOL_FALSE }
};
struct sdap_attr_map generic_attr_map[] = {
{ "ldap_entry_usn", NULL, SYSDB_USN, NULL },
{ "ldap_rootdse_last_usn", NULL, SYSDB_HIGH_USN, NULL }
};
struct sdap_attr_map gen_ipa_attr_map[] = {
{ "ldap_entry_usn", SDAP_IPA_USN, SYSDB_USN, NULL },
{ "ldap_rootdse_last_usn", SDAP_IPA_LAST_USN, SYSDB_HIGH_USN, NULL }
};
struct sdap_attr_map gen_ad_attr_map[] = {
{ "ldap_entry_usn", SDAP_AD_USN, SYSDB_USN, NULL },
{ "ldap_rootdse_last_usn", SDAP_AD_LAST_USN, SYSDB_HIGH_USN, NULL }
};
struct sdap_attr_map rfc2307_user_map[] = {
{ "ldap_user_object_class", "posixAccount", SYSDB_USER_CLASS, NULL },
{ "ldap_user_name", "uid", SYSDB_NAME, NULL },
{ "ldap_user_pwd", "userPassword", SYSDB_PWD, NULL },
{ "ldap_user_uid_number", "uidNumber", SYSDB_UIDNUM, NULL },
{ "ldap_user_gid_number", "gidNumber", SYSDB_GIDNUM, NULL },
{ "ldap_user_gecos", "gecos", SYSDB_GECOS, NULL },
{ "ldap_user_home_directory", "homeDirectory", SYSDB_HOMEDIR, NULL },
{ "ldap_user_shell", "loginShell", SYSDB_SHELL, NULL },
{ "ldap_user_principal", "krbPrincipalName", SYSDB_UPN, NULL },
{ "ldap_user_fullname", "cn", SYSDB_FULLNAME, NULL },
{ "ldap_user_member_of", NULL, SYSDB_MEMBEROF, NULL },
{ "ldap_user_uuid", NULL, SYSDB_UUID, NULL },
{ "ldap_user_modify_timestamp", "modifyTimestamp", SYSDB_ORIG_MODSTAMP, NULL },
{ "ldap_user_entry_usn", NULL, SYSDB_USN, NULL },
{ "ldap_user_shadow_last_change", "shadowLastChange", SYSDB_SHADOWPW_LASTCHANGE, NULL },
{ "ldap_user_shadow_min", "shadowMin", SYSDB_SHADOWPW_MIN, NULL },
{ "ldap_user_shadow_max", "shadowMax", SYSDB_SHADOWPW_MAX, NULL },
{ "ldap_user_shadow_warning", "shadowWarning", SYSDB_SHADOWPW_WARNING, NULL },
{ "ldap_user_shadow_inactive", "shadowInactive", SYSDB_SHADOWPW_INACTIVE, NULL },
{ "ldap_user_shadow_expire", "shadowExpire", SYSDB_SHADOWPW_EXPIRE, NULL },
{ "ldap_user_shadow_flag", "shadowFlag", SYSDB_SHADOWPW_FLAG, NULL },
{ "ldap_user_krb_last_pwd_change", "krbLastPwdChange", SYSDB_KRBPW_LASTCHANGE, NULL },
{ "ldap_user_krb_password_expiration", "krbPasswordExpiration", SYSDB_KRBPW_EXPIRATION, NULL },
{ "ldap_pwd_attribute", "pwdAttribute", SYSDB_PWD_ATTRIBUTE, NULL },
{ "ldap_user_authorized_service", "authorizedService", SYSDB_AUTHORIZED_SERVICE, NULL },
{ "ldap_user_ad_account_expires", "accountExpires", SYSDB_AD_ACCOUNT_EXPIRES, NULL},
{ "ldap_user_ad_user_account_control", "userAccountControl", SYSDB_AD_USER_ACCOUNT_CONTROL, NULL},
{ "ldap_ns_account_lock", "nsAccountLock", SYSDB_NS_ACCOUNT_LOCK, NULL},
{ "ldap_user_authorized_host", "host", SYSDB_AUTHORIZED_HOST, NULL },
{ "ldap_user_nds_login_disabled", "loginDisabled", SYSDB_NDS_LOGIN_DISABLED, NULL },
{ "ldap_user_nds_login_expiration_time", "loginExpirationTime", SYSDB_NDS_LOGIN_EXPIRATION_TIME, NULL },
{ "ldap_user_nds_login_allowed_time_map", "loginAllowedTimeMap", SYSDB_NDS_LOGIN_ALLOWED_TIME_MAP, NULL },
{ "ldap_user_ssh_public_key", NULL, SYSDB_SSH_PUBKEY, NULL }
};
struct sdap_attr_map rfc2307_group_map[] = {
{ "ldap_group_object_class", "posixGroup", SYSDB_GROUP_CLASS, NULL },
{ "ldap_group_name", "cn", SYSDB_NAME, NULL },
{ "ldap_group_pwd", "userPassword", SYSDB_PWD, NULL },
{ "ldap_group_gid_number", "gidNumber", SYSDB_GIDNUM, NULL },
{ "ldap_group_member", "memberuid", SYSDB_MEMBER, NULL },
{ "ldap_group_uuid", NULL, SYSDB_UUID, NULL },
{ "ldap_group_modify_timestamp", "modifyTimestamp", SYSDB_ORIG_MODSTAMP, NULL },
{ "ldap_group_entry_usn", NULL, SYSDB_USN, NULL }
};
struct sdap_attr_map rfc2307bis_user_map[] = {
{ "ldap_user_object_class", "posixAccount", SYSDB_USER_CLASS, NULL },
{ "ldap_user_name", "uid", SYSDB_NAME, NULL },
{ "ldap_user_pwd", "userPassword", SYSDB_PWD, NULL },
{ "ldap_user_uid_number", "uidNumber", SYSDB_UIDNUM, NULL },
{ "ldap_user_gid_number", "gidNumber", SYSDB_GIDNUM, NULL },
{ "ldap_user_gecos", "gecos", SYSDB_GECOS, NULL },
{ "ldap_user_home_directory", "homeDirectory", SYSDB_HOMEDIR, NULL },
{ "ldap_user_shell", "loginShell", SYSDB_SHELL, NULL },
{ "ldap_user_principal", "krbPrincipalName", SYSDB_UPN, NULL },
{ "ldap_user_fullname", "cn", SYSDB_FULLNAME, NULL },
{ "ldap_user_member_of", "memberOf", SYSDB_MEMBEROF, NULL },
/* FIXME: this is 389ds specific */
{ "ldap_user_uuid", "nsUniqueId", SYSDB_UUID, NULL },
{ "ldap_user_modify_timestamp", "modifyTimestamp", SYSDB_ORIG_MODSTAMP, NULL },
{ "ldap_user_entry_usn", NULL, SYSDB_USN, NULL },
{ "ldap_user_shadow_last_change", "shadowLastChange", SYSDB_SHADOWPW_LASTCHANGE, NULL },
{ "ldap_user_shadow_min", "shadowMin", SYSDB_SHADOWPW_MIN, NULL },
{ "ldap_user_shadow_max", "shadowMax", SYSDB_SHADOWPW_MAX, NULL },
{ "ldap_user_shadow_warning", "shadowWarning", SYSDB_SHADOWPW_WARNING, NULL },
{ "ldap_user_shadow_inactive", "shadowInactive", SYSDB_SHADOWPW_INACTIVE, NULL },
{ "ldap_user_shadow_expire", "shadowExpire", SYSDB_SHADOWPW_EXPIRE, NULL },
{ "ldap_user_shadow_flag", "shadowFlag", SYSDB_SHADOWPW_FLAG, NULL },
{ "ldap_user_krb_last_pwd_change", "krbLastPwdChange", SYSDB_KRBPW_LASTCHANGE, NULL },
{ "ldap_user_krb_password_expiration", "krbPasswordExpiration", SYSDB_KRBPW_EXPIRATION, NULL },
{ "ldap_pwd_attribute", "pwdAttribute", SYSDB_PWD_ATTRIBUTE, NULL },
{ "ldap_user_authorized_service", "authorizedService", SYSDB_AUTHORIZED_SERVICE, NULL },
{ "ldap_user_ad_account_expires", "accountExpires", SYSDB_AD_ACCOUNT_EXPIRES, NULL},
{ "ldap_user_ad_user_account_control", "userAccountControl", SYSDB_AD_USER_ACCOUNT_CONTROL, NULL},
{ "ldap_ns_account_lock", "nsAccountLock", SYSDB_NS_ACCOUNT_LOCK, NULL},
{ "ldap_user_authorized_host", "host", SYSDB_AUTHORIZED_HOST, NULL },
{ "ldap_user_nds_login_disabled", "loginDisabled", SYSDB_NDS_LOGIN_DISABLED, NULL },
{ "ldap_user_nds_login_expiration_time", "loginExpirationTime", SYSDB_NDS_LOGIN_EXPIRATION_TIME, NULL },
{ "ldap_user_nds_login_allowed_time_map", "loginAllowedTimeMap", SYSDB_NDS_LOGIN_ALLOWED_TIME_MAP, NULL },
{ "ldap_user_ssh_public_key", NULL, SYSDB_SSH_PUBKEY, NULL }
};
struct sdap_attr_map rfc2307bis_group_map[] = {
{ "ldap_group_object_class", "posixGroup", SYSDB_GROUP_CLASS, NULL },
{ "ldap_group_name", "cn", SYSDB_NAME, NULL },
{ "ldap_group_pwd", "userPassword", SYSDB_PWD, NULL },
{ "ldap_group_gid_number", "gidNumber", SYSDB_GIDNUM, NULL },
{ "ldap_group_member", "member", SYSDB_MEMBER, NULL },
/* FIXME: this is 389ds specific */
{ "ldap_group_uuid", "nsUniqueId", SYSDB_UUID, NULL },
{ "ldap_group_modify_timestamp", "modifyTimestamp", SYSDB_ORIG_MODSTAMP, NULL },
{ "ldap_group_entry_usn", NULL, SYSDB_USN, NULL }
};
struct sdap_attr_map netgroup_map[] = {
{ "ldap_netgroup_object_class", "nisNetgroup", SYSDB_NETGROUP_CLASS, NULL },
{ "ldap_netgroup_name", "cn", SYSDB_NAME, NULL },
{ "ldap_netgroup_member", "memberNisNetgroup", SYSDB_ORIG_NETGROUP_MEMBER, NULL },
{ "ldap_netgroup_triple", "nisNetgroupTriple", SYSDB_NETGROUP_TRIPLE, NULL },
/* FIXME: this is 389ds specific */
{ "ldap_netgroup_uuid", "nsUniqueId", SYSDB_UUID, NULL },
{ "ldap_netgroup_modify_timestamp", "modifyTimestamp", SYSDB_ORIG_MODSTAMP, NULL }
};
struct sdap_attr_map native_sudorule_map[] = {
{ "ldap_sudorule_object_class", "sudoRole", SYSDB_SUDO_CACHE_AT_OC, NULL },
{ "ldap_sudorule_name", "cn", SYSDB_SUDO_CACHE_AT_CN, NULL },
{ "ldap_sudorule_command", "sudoCommand", SYSDB_SUDO_CACHE_AT_COMMAND, NULL },
{ "ldap_sudorule_host", "sudoHost", SYSDB_SUDO_CACHE_AT_HOST, NULL },
{ "ldap_sudorule_user", "sudoUser", SYSDB_SUDO_CACHE_AT_USER, NULL },
{ "ldap_sudorule_option", "sudoOption", SYSDB_SUDO_CACHE_AT_OPTION, NULL },
{ "ldap_sudorule_runasuser", "sudoRunAsUser", SYSDB_SUDO_CACHE_AT_RUNASUSER, NULL },
{ "ldap_sudorule_runasgroup", "sudoRunAsGroup", SYSDB_SUDO_CACHE_AT_RUNASGROUP, NULL },
{ "ldap_sudorule_notbefore", "sudoNotBefore", SYSDB_SUDO_CACHE_AT_NOTBEFORE, NULL },
{ "ldap_sudorule_notafter", "sudoNotAfter", SYSDB_SUDO_CACHE_AT_NOTAFTER, NULL },
{ "ldap_sudorule_order", "sudoOrder", SYSDB_SUDO_CACHE_AT_ORDER, NULL }
};
struct sdap_attr_map service_map[] = {
{ "ldap_service_object_class", "ipService", SYSDB_SVC_CLASS, NULL },
{ "ldap_service_name", "cn", SYSDB_NAME, NULL },
{ "ldap_service_port", "ipServicePort", SYSDB_SVC_PORT, NULL },
{ "ldap_service_proto", "ipServiceProtocol", SYSDB_SVC_PROTO, NULL },
{ "ldap_service_entry_usn", NULL, SYSDB_USN, NULL }
};
struct sdap_attr_map rfc2307_autofs_mobject_map[] = {
{ "ldap_autofs_map_object_class", "automountMap", SYSDB_AUTOFS_MAP_OC, NULL },
{ "ldap_autofs_map_name", "ou", SYSDB_AUTOFS_MAP_NAME, NULL }
};
struct sdap_attr_map rfc2307_autofs_entry_map[] = {
{ "ldap_autofs_entry_object_class", "automount", SYSDB_AUTOFS_ENTRY_OC, NULL },
{ "ldap_autofs_entry_key", "cn", SYSDB_AUTOFS_ENTRY_KEY, NULL },
{ "ldap_autofs_entry_value", "automountInformation", SYSDB_AUTOFS_ENTRY_VALUE, NULL },
};
struct sdap_attr_map rfc2307bis_autofs_mobject_map[] = {
{ "ldap_autofs_map_object_class", "automountMap", SYSDB_AUTOFS_MAP_OC, NULL },
{ "ldap_autofs_map_name", "automountMapName", SYSDB_AUTOFS_MAP_NAME, NULL }
};
struct sdap_attr_map rfc2307bis_autofs_entry_map[] = {
{ "ldap_autofs_entry_object_class", "automount", SYSDB_AUTOFS_ENTRY_OC, NULL },
{ "ldap_autofs_entry_key", "automountKey", SYSDB_AUTOFS_ENTRY_KEY, NULL },
{ "ldap_autofs_entry_value", "automountInformation", SYSDB_AUTOFS_ENTRY_VALUE, NULL },
};
int ldap_get_options(TALLOC_CTX *memctx,
struct confdb_ctx *cdb,
const char *conf_path,
struct sdap_options **_opts)
{
struct sdap_attr_map *default_attr_map;
struct sdap_attr_map *default_user_map;
struct sdap_attr_map *default_group_map;
struct sdap_attr_map *default_netgroup_map;
struct sdap_attr_map *default_service_map;
struct sdap_options *opts;
char *schema;
const char *search_base;
const char *pwd_policy;
int ret;
int account_cache_expiration;
int offline_credentials_expiration;
const char *ldap_deref;
int ldap_deref_val;
int o;
const char *authtok_type;
struct dp_opt_blob authtok_blob;
char *cleartext;
const int search_base_options[] = { SDAP_USER_SEARCH_BASE,
SDAP_GROUP_SEARCH_BASE,
SDAP_NETGROUP_SEARCH_BASE,
SDAP_SERVICE_SEARCH_BASE,
-1 };
opts = talloc_zero(memctx, struct sdap_options);
if (!opts) return ENOMEM;
ret = dp_get_options(opts, cdb, conf_path,
default_basic_opts,
SDAP_OPTS_BASIC,
&opts->basic);
if (ret != EOK) {
goto done;
}
/* Handle search bases */
search_base = dp_opt_get_string(opts->basic, SDAP_SEARCH_BASE);
if (search_base != NULL) {
/* set user/group/netgroup search bases if they are not */
for (o = 0; search_base_options[o] != -1; o++) {
if (NULL == dp_opt_get_string(opts->basic, search_base_options[o])) {
ret = dp_opt_set_string(opts->basic, search_base_options[o],
search_base);
if (ret != EOK) {
goto done;
}
DEBUG(6, ("Option %s set to %s\n",
opts->basic[search_base_options[o]].opt_name,
dp_opt_get_string(opts->basic,
search_base_options[o])));
}
}
} else {
DEBUG(5, ("Search base not set, trying to discover it later when "
"connecting to the LDAP server.\n"));
}
/* Default search */
ret = sdap_parse_search_base(opts, opts->basic,
SDAP_SEARCH_BASE,
&opts->search_bases);
if (ret != EOK && ret != ENOENT) goto done;
/* User search */
ret = sdap_parse_search_base(opts, opts->basic,
SDAP_USER_SEARCH_BASE,
&opts->user_search_bases);
if (ret != EOK && ret != ENOENT) goto done;
/* Group search base */
ret = sdap_parse_search_base(opts, opts->basic,
SDAP_GROUP_SEARCH_BASE,
&opts->group_search_bases);
if (ret != EOK && ret != ENOENT) goto done;
/* Netgroup search */
ret = sdap_parse_search_base(opts, opts->basic,
SDAP_NETGROUP_SEARCH_BASE,
&opts->netgroup_search_bases);
if (ret != EOK && ret != ENOENT) goto done;
/* Service search */
ret = sdap_parse_search_base(opts, opts->basic,
SDAP_SERVICE_SEARCH_BASE,
&opts->service_search_bases);
if (ret != EOK && ret != ENOENT) goto done;
pwd_policy = dp_opt_get_string(opts->basic, SDAP_PWD_POLICY);
if (pwd_policy == NULL) {
DEBUG(1, ("Missing password policy, this may not happen.\n"));
ret = EINVAL;
goto done;
}
if (strcasecmp(pwd_policy, PWD_POL_OPT_NONE) != 0 &&
strcasecmp(pwd_policy, PWD_POL_OPT_SHADOW) != 0 &&
strcasecmp(pwd_policy, PWD_POL_OPT_MIT) != 0) {
DEBUG(1, ("Unsupported password policy [%s].\n", pwd_policy));
ret = EINVAL;
goto done;
}
/* account_cache_expiration must be >= than offline_credentials_expiration */
ret = confdb_get_int(cdb, CONFDB_PAM_CONF_ENTRY,
CONFDB_PAM_CRED_TIMEOUT, 0,
&offline_credentials_expiration);
if (ret != EOK) {
DEBUG(1, ("Cannot get value of %s from confdb \n",
CONFDB_PAM_CRED_TIMEOUT));
goto done;
}
account_cache_expiration = dp_opt_get_int(opts->basic,
SDAP_ACCOUNT_CACHE_EXPIRATION);
/* account cache_expiration must not be smaller than
* offline_credentials_expiration to prevent deleting entries that
* still contain credentials valid for offline login.
*
* offline_credentials_expiration == 0 is a special case that says
* that the cached credentials are valid forever. Therefore, the cached
* entries must not be purged from cache.
*/
if (!offline_credentials_expiration && account_cache_expiration) {
DEBUG(1, ("Conflicting values for options %s (unlimited) "
"and %s (%d)\n",
opts->basic[SDAP_ACCOUNT_CACHE_EXPIRATION].opt_name,
CONFDB_PAM_CRED_TIMEOUT,
offline_credentials_expiration));
ret = EINVAL;
goto done;
}
if (offline_credentials_expiration && account_cache_expiration &&
offline_credentials_expiration > account_cache_expiration) {
DEBUG(1, ("Value of %s (now %d) must be larger "
"than value of %s (now %d)\n",
opts->basic[SDAP_ACCOUNT_CACHE_EXPIRATION].opt_name,
account_cache_expiration,
CONFDB_PAM_CRED_TIMEOUT,
offline_credentials_expiration));
ret = EINVAL;
goto done;
}
ldap_deref = dp_opt_get_string(opts->basic, SDAP_DEREF);
if (ldap_deref != NULL) {
ret = deref_string_to_val(ldap_deref, &ldap_deref_val);
if (ret != EOK) {
DEBUG(1, ("Failed to verify ldap_deref option.\n"));
goto done;
}
}
#ifndef HAVE_LDAP_CONNCB
bool ldap_referrals;
ldap_referrals = dp_opt_get_bool(opts->basic, SDAP_REFERRALS);
if (ldap_referrals) {
DEBUG(1, ("LDAP referrals are not supported, because the LDAP library "
"is too old, see sssd-ldap(5) for details.\n"));
ret = dp_opt_set_bool(opts->basic, SDAP_REFERRALS, false);
}
#endif
/* schema type */
schema = dp_opt_get_string(opts->basic, SDAP_SCHEMA);
if (strcasecmp(schema, "rfc2307") == 0) {
opts->schema_type = SDAP_SCHEMA_RFC2307;
default_attr_map = generic_attr_map;
default_user_map = rfc2307_user_map;
default_group_map = rfc2307_group_map;
default_netgroup_map = netgroup_map;
default_service_map = service_map;
} else
if (strcasecmp(schema, "rfc2307bis") == 0) {
opts->schema_type = SDAP_SCHEMA_RFC2307BIS;
default_attr_map = generic_attr_map;
default_user_map = rfc2307bis_user_map;
default_group_map = rfc2307bis_group_map;
default_netgroup_map = netgroup_map;
default_service_map = service_map;
} else
if (strcasecmp(schema, "IPA") == 0) {
opts->schema_type = SDAP_SCHEMA_IPA_V1;
default_attr_map = gen_ipa_attr_map;
default_user_map = rfc2307bis_user_map;
default_group_map = rfc2307bis_group_map;
default_netgroup_map = netgroup_map;
default_service_map = service_map;
} else
if (strcasecmp(schema, "AD") == 0) {
opts->schema_type = SDAP_SCHEMA_AD;
default_attr_map = gen_ad_attr_map;
default_user_map = rfc2307bis_user_map;
default_group_map = rfc2307bis_group_map;
default_netgroup_map = netgroup_map;
default_service_map = service_map;
} else {
DEBUG(0, ("Unrecognized schema type: %s\n", schema));
ret = EINVAL;
goto done;
}
ret = sdap_get_map(opts, cdb, conf_path,
default_attr_map,
SDAP_AT_GENERAL,
&opts->gen_map);
if (ret != EOK) {
goto done;
}
ret = sdap_get_map(opts, cdb, conf_path,
default_user_map,
SDAP_OPTS_USER,
&opts->user_map);
if (ret != EOK) {
goto done;
}
ret = sdap_get_map(opts, cdb, conf_path,
default_group_map,
SDAP_OPTS_GROUP,
&opts->group_map);
if (ret != EOK) {
goto done;
}
ret = sdap_get_map(opts, cdb, conf_path,
default_netgroup_map,
SDAP_OPTS_NETGROUP,
&opts->netgroup_map);
if (ret != EOK) {
goto done;
}
ret = sdap_get_map(opts, cdb, conf_path,
default_service_map,
SDAP_OPTS_SERVICES,
&opts->service_map);
if (ret != EOK) {
goto done;
}
/* If there is no KDC, try the deprecated krb5_kdcip option, too */
/* FIXME - this can be removed in a future version */
ret = krb5_try_kdcip(memctx, cdb, conf_path, opts->basic, SDAP_KRB5_KDC);
if (ret != EOK) {
DEBUG(1, ("sss_krb5_try_kdcip failed.\n"));
goto done;
}
authtok_type = dp_opt_get_string(opts->basic, SDAP_DEFAULT_AUTHTOK_TYPE);
if (authtok_type != NULL &&
strcasecmp(authtok_type,"obfuscated_password") == 0) {
DEBUG(9, ("Found obfuscated password, "
"trying to convert to cleartext.\n"));
authtok_blob = dp_opt_get_blob(opts->basic, SDAP_DEFAULT_AUTHTOK);
if (authtok_blob.data == NULL || authtok_blob.length == 0) {
DEBUG(1, ("Missing obfuscated password string.\n"));
return EINVAL;
}
ret = sss_password_decrypt(memctx, (char *) authtok_blob.data,
&cleartext);
if (ret != EOK) {
DEBUG(1, ("Cannot convert the obfuscated "
"password back to cleartext\n"));
return ret;
}
authtok_blob.data = (uint8_t *) cleartext;
authtok_blob.length = strlen(cleartext);
ret = dp_opt_set_blob(opts->basic, SDAP_DEFAULT_AUTHTOK, authtok_blob);
talloc_free(cleartext);
if (ret != EOK) {
DEBUG(1, ("dp_opt_set_string failed.\n"));
return ret;
}
ret = dp_opt_set_string(opts->basic, SDAP_DEFAULT_AUTHTOK_TYPE,
"password");
if (ret != EOK) {
DEBUG(1, ("dp_opt_set_string failed.\n"));
return ret;
}
}
ret = EOK;
*_opts = opts;
done:
if (ret != EOK) {
talloc_zfree(opts);
}
return ret;
}
int ldap_get_sudo_options(TALLOC_CTX *memctx,
struct confdb_ctx *cdb,
const char *conf_path,
struct sdap_options *opts)
{
const char *search_base;
int ret;
/* search base */
search_base = dp_opt_get_string(opts->basic, SDAP_SEARCH_BASE);
if (search_base != NULL) {
/* set sudo search bases if they are not */
if (dp_opt_get_string(opts->basic, SDAP_SUDO_SEARCH_BASE) == NULL) {
ret = dp_opt_set_string(opts->basic, SDAP_SUDO_SEARCH_BASE,
search_base);
if (ret != EOK) {
DEBUG(SSSDBG_OP_FAILURE, ("Could not set SUDO search base"
"to default value\n"));
return ret;
}
DEBUG(SSSDBG_FUNC_DATA, ("Option %s set to %s\n",
opts->basic[SDAP_SUDO_SEARCH_BASE].opt_name,
dp_opt_get_string(opts->basic, SDAP_SUDO_SEARCH_BASE)));
}
} else {
DEBUG(SSSDBG_TRACE_FUNC, ("Search base not set, trying to discover it later "
"connecting to the LDAP server.\n"));
}
ret = sdap_parse_search_base(opts, opts->basic,
SDAP_SUDO_SEARCH_BASE,
&opts->sudo_search_bases);
if (ret != EOK && ret != ENOENT) {
DEBUG(SSSDBG_OP_FAILURE, ("Could not parse SUDO search base\n"));
return ret;
}
/* attrs map */
ret = sdap_get_map(opts, cdb, conf_path,
native_sudorule_map,
SDAP_OPTS_SUDO,
&opts->sudorule_map);
if (ret != EOK) {
DEBUG(SSSDBG_OP_FAILURE, ("Could not get SUDO attribute map\n"));
return ret;
}
return EOK;
}
int ldap_get_autofs_options(TALLOC_CTX *memctx,
struct confdb_ctx *cdb,
const char *conf_path,
struct sdap_options *opts)
{
const char *search_base;
struct sdap_attr_map *default_entry_map;
struct sdap_attr_map *default_mobject_map;
int ret;
/* search base */
search_base = dp_opt_get_string(opts->basic, SDAP_SEARCH_BASE);
if (search_base != NULL) {
/* set autofs search bases if they are not */
if (dp_opt_get_string(opts->basic, SDAP_AUTOFS_SEARCH_BASE) == NULL) {
ret = dp_opt_set_string(opts->basic, SDAP_AUTOFS_SEARCH_BASE,
search_base);
if (ret != EOK) {
DEBUG(SSSDBG_OP_FAILURE, ("Could not set autofs search base"
"to default value\n"));
return ret;
}
DEBUG(SSSDBG_FUNC_DATA, ("Option %s set to %s\n",
opts->basic[SDAP_AUTOFS_SEARCH_BASE].opt_name,
dp_opt_get_string(opts->basic, SDAP_AUTOFS_SEARCH_BASE)));
}
} else {
DEBUG(SSSDBG_OP_FAILURE, ("Error: no autofs search base set\n"));
return ENOENT;
}
ret = sdap_parse_search_base(opts, opts->basic,
SDAP_AUTOFS_SEARCH_BASE,
&opts->autofs_search_bases);
if (ret != EOK && ret != ENOENT) {
DEBUG(SSSDBG_OP_FAILURE, ("Could not parse autofs search base\n"));
return ret;
}
/* attribute maps */
switch (opts->schema_type) {
case SDAP_SCHEMA_RFC2307:
default_mobject_map = rfc2307_autofs_mobject_map;
default_entry_map = rfc2307_autofs_entry_map;
break;
case SDAP_SCHEMA_RFC2307BIS:
case SDAP_SCHEMA_IPA_V1:
case SDAP_SCHEMA_AD:
default_mobject_map = rfc2307bis_autofs_mobject_map;
default_entry_map = rfc2307bis_autofs_entry_map;
break;
default:
DEBUG(SSSDBG_CRIT_FAILURE, ("Unknown LDAP schema!\n"));
return EINVAL;
}
ret = sdap_get_map(opts, cdb, conf_path,
default_mobject_map,
SDAP_OPTS_AUTOFS_MAP,
&opts->autofs_mobject_map);
if (ret != EOK) {
DEBUG(SSSDBG_OP_FAILURE,
("Could not get autofs map object attribute map\n"));
return ret;
}
ret = sdap_get_map(opts, cdb, conf_path,
default_entry_map,
SDAP_OPTS_AUTOFS_ENTRY,
&opts->autofs_entry_map);
if (ret != EOK) {
DEBUG(SSSDBG_OP_FAILURE,
("Could not get autofs entry object attribute map\n"));
return ret;
}
return EOK;
}
errno_t sdap_parse_search_base(TALLOC_CTX *mem_ctx,
struct dp_option *opts, int class,
struct sdap_search_base ***_search_bases)
{
const char *class_name;
char *unparsed_base;
const char *old_filter = NULL;
*_search_bases = NULL;
switch (class) {
case SDAP_SEARCH_BASE:
class_name = "DEFAULT";
break;
case SDAP_USER_SEARCH_BASE:
class_name = "USER";
old_filter = dp_opt_get_string(opts, SDAP_USER_SEARCH_FILTER);
break;
case SDAP_GROUP_SEARCH_BASE:
class_name = "GROUP";
old_filter = dp_opt_get_string(opts, SDAP_GROUP_SEARCH_FILTER);
break;
case SDAP_NETGROUP_SEARCH_BASE:
class_name = "NETGROUP";
break;
case SDAP_SUDO_SEARCH_BASE:
class_name = "SUDO";
break;
case SDAP_SERVICE_SEARCH_BASE:
class_name = "SERVICE";
break;
case SDAP_AUTOFS_SEARCH_BASE:
class_name = "AUTOFS";
break;
default:
DEBUG(SSSDBG_CONF_SETTINGS,
("Unknown search base type: [%d]\n", class));
class_name = "UNKNOWN";
/* Non-fatal */
break;
}
unparsed_base = dp_opt_get_string(opts, class);
if (!unparsed_base || unparsed_base[0] == '\0') return ENOENT;
return common_parse_search_base(mem_ctx, unparsed_base,
class_name, old_filter,
_search_bases);
}
errno_t common_parse_search_base(TALLOC_CTX *mem_ctx,
const char *unparsed_base,
const char *class_name,
const char *old_filter,
struct sdap_search_base ***_search_bases)
{
errno_t ret;
struct sdap_search_base **search_bases;
TALLOC_CTX *tmp_ctx;
struct ldb_context *ldb;
struct ldb_dn *ldn;
struct ldb_parse_tree *tree;
char **split_bases;
char *filter;
int count;
int i, c;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
ret = ENOMEM;
goto done;
}
/* Create a throwaway LDB context for validating the DN */
ldb = ldb_init(tmp_ctx, NULL);
if (!ldb) {
ret = ENOMEM;
goto done;
}
ret = split_on_separator(tmp_ctx, unparsed_base, '?', false,
&split_bases, &count);
if (ret != EOK) goto done;
/* The split must be either exactly one value or a multiple of
* three in order to be valid.
* One value: just a base, backwards-compatible with pre-1.7.0 versions
* Multiple: search_base?scope?filter[?search_base?scope?filter]*
*/
if (count > 1 && (count % 3)) {
DEBUG(SSSDBG_CRIT_FAILURE,
("Unparseable search base: [%s][%d]\n", unparsed_base, count));
ret = EINVAL;
goto done;
}
if (count == 1) {
search_bases = talloc_array(tmp_ctx, struct sdap_search_base *, 2);
if (!search_bases) {
ret = ENOMEM;
goto done;
}
search_bases[0] = talloc_zero(search_bases, struct sdap_search_base);
if (!search_bases[0]) {
ret = ENOMEM;
goto done;
}
search_bases[0]->basedn = talloc_strdup(search_bases[0],
unparsed_base);
if (!search_bases[0]->basedn) {
ret = ENOMEM;
goto done;
}
/* Validate the basedn */
ldn = ldb_dn_new(tmp_ctx, ldb, unparsed_base);
if (!ldn) {
ret = ENOMEM;
goto done;
}
if (!ldb_dn_validate(ldn)) {
DEBUG(SSSDBG_CRIT_FAILURE,
("Invalid base DN [%s]\n",
unparsed_base));
ret = EINVAL;
goto done;
}
talloc_zfree(ldn);
search_bases[0]->scope = LDAP_SCOPE_SUBTREE;
/* Use a search filter specified in the old style if available */
search_bases[0]->filter = old_filter;
DEBUG(SSSDBG_CONF_SETTINGS,
("Search base added: [%s][%s][%s][%s]\n",
class_name,
search_bases[0]->basedn,
"SUBTREE",
search_bases[0]->filter ? search_bases[0]->filter : ""));
search_bases[1] = NULL;
} else {
search_bases = talloc_array(tmp_ctx, struct sdap_search_base *,
(count / 3) + 1);
if (!search_bases) {
ret = ENOMEM;
goto done;
}
i = 0;
for (c = 0; c < count; c += 3) {
search_bases[i] = talloc_zero(search_bases,
struct sdap_search_base);
if (!search_bases[i]) {
ret = ENOMEM;
goto done;
}
if (split_bases[c][0] == '\0') {
DEBUG(SSSDBG_CRIT_FAILURE,
("Zero-length search base: [%s]\n", unparsed_base));
ret = EINVAL;
goto done;
}
/* Validate the basedn */
ldn = ldb_dn_new(tmp_ctx, ldb, split_bases[c]);
if (!ldn) {
ret = ENOMEM;
goto done;
}
if (!ldb_dn_validate(ldn)) {
DEBUG(SSSDBG_CRIT_FAILURE,
("Invalid base DN [%s]\n",
split_bases[c]));
ret = EINVAL;
goto done;
}
talloc_zfree(ldn);
/* Set the search base DN */
search_bases[i]->basedn = talloc_strdup(search_bases[i],
split_bases[c]);
if (!search_bases[i]->basedn) {
ret = ENOMEM;
goto done;
}
/* Set the search scope for this base DN */
if ((split_bases[c+1][0] == '\0')
|| strcasecmp(split_bases[c+1], "sub") == 0
|| strcasecmp(split_bases[c+1], "subtree") == 0) {
/* If unspecified, default to subtree */
search_bases[i]->scope = LDAP_SCOPE_SUBTREE;
} else if (strcasecmp(split_bases[c+1], "one") == 0
|| strcasecmp(split_bases[c+1], "onelevel") == 0) {
search_bases[i]->scope = LDAP_SCOPE_ONELEVEL;
} else if (strcasecmp(split_bases[c+1], "base") == 0) {
search_bases[i]->scope = LDAP_SCOPE_BASE;
} else {
DEBUG(SSSDBG_CRIT_FAILURE,
("Unknown search scope: [%s]\n", split_bases[c+1]));
ret = EINVAL;
goto done;
}
/* Get a specialized filter if provided */
if (split_bases[c+2][0] == '\0') {
search_bases[i]->filter = NULL;
} else {
if (split_bases[c+2][0] != '(') {
/* Filters need to be enclosed in parentheses
* to be validated properly by ldb_parse_tree()
*/
filter = talloc_asprintf(tmp_ctx, "(%s)",
split_bases[c+2]);
} else {
filter = talloc_strdup(tmp_ctx, split_bases[c+2]);
}
if (!filter) {
ret = ENOMEM;
goto done;
}
tree = ldb_parse_tree(tmp_ctx, filter);
if(!tree) {
DEBUG(SSSDBG_CRIT_FAILURE,
("Invalid search filter: [%s]\n", filter));
ret = EINVAL;
goto done;
}
talloc_zfree(tree);
search_bases[i]->filter = talloc_steal(search_bases[i],
filter);
}
DEBUG(SSSDBG_CONF_SETTINGS,
("Search base added: [%s][%s][%s][%s]\n",
class_name,
search_bases[i]->basedn,
split_bases[c+1][0] ? split_bases[c+1] : "SUBTREE",
search_bases[i]->filter ? search_bases[i]->filter : ""));
i++;
}
search_bases[i] = NULL;
}
*_search_bases = talloc_steal(mem_ctx, search_bases);
ret = EOK;
done:
talloc_free(tmp_ctx);
return ret;
}
void sdap_handler_done(struct be_req *req, int dp_err,
int error, const char *errstr)
{
return req->fn(req, dp_err, error, errstr);
}
void sdap_mark_offline(struct sdap_id_ctx *ctx)
{
be_mark_offline(ctx->be);
}
int sdap_id_setup_tasks(struct sdap_id_ctx *ctx)
{
struct timeval tv;
int ret = EOK;
int delay;
bool has_enumerated;
/* set up enumeration task */
if (ctx->be->domain->enumerate) {
/* If this is the first startup, we need to kick off
* an enumeration immediately, to close a window where
* clients requesting get*ent information won't get an
* immediate reply with no entries
*/
ret = sysdb_has_enumerated(ctx->be->sysdb, &has_enumerated);
if (ret != EOK) {
return ret;
}
if (has_enumerated) {
/* At least one enumeration has previously run,
* so clients will get cached data. We will delay
* starting to enumerate by 10s so we don't slow
* down the startup process if this is happening
* during system boot.
*/
tv = tevent_timeval_current_ofs(10, 0);
} else {
/* This is our first startup. Schedule the
* enumeration to start immediately once we
* enter the mainloop.
*/
tv = tevent_timeval_current();
}
ret = ldap_id_enumerate_set_timer(ctx, tv);
} else {
/* the enumeration task, runs the cleanup process by itself,
* but if enumeration is not running we need to schedule it */
delay = dp_opt_get_int(ctx->opts->basic, SDAP_CACHE_PURGE_TIMEOUT);
if (delay == 0) {
/* Cleanup has been explicitly disabled, so we won't
* schedule any cleanup tasks.
*/
return EOK;
}
/* run the first one in a couple of seconds so that we have time to
* finish initializations first*/
tv = tevent_timeval_current_ofs(10, 0);
ret = ldap_id_cleanup_set_timer(ctx, tv);
}
return ret;
}
static void sdap_uri_callback(void *private_data, struct fo_server *server)
{
TALLOC_CTX *tmp_ctx = NULL;
struct sdap_service *service;
struct resolv_hostent *srvaddr;
struct sockaddr_storage *sockaddr;
const char *tmp;
const char *srv_name;
char *new_uri;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
DEBUG(1, ("talloc_new failed\n"));
return;
}
service = talloc_get_type(private_data, struct sdap_service);
if (!service) {
talloc_free(tmp_ctx);
return;
}
tmp = (const char *)fo_get_server_user_data(server);
srvaddr = fo_get_server_hostent(server);
if (!srvaddr) {
DEBUG(1, ("FATAL: No hostent available for server (%s)\n",
fo_get_server_str_name(server)));
talloc_free(tmp_ctx);
return;
}
sockaddr = resolv_get_sockaddr_address(tmp_ctx, srvaddr,
fo_get_server_port(server));
if (sockaddr == NULL) {
DEBUG(1, ("resolv_get_sockaddr_address failed.\n"));
talloc_free(tmp_ctx);
return;
}
if (fo_is_srv_lookup(server)) {
if (!tmp) {
DEBUG(1, ("Unknown service, using ldap\n"));
tmp = SSS_LDAP_SRV_NAME;
}
srv_name = fo_get_server_name(server);
if (srv_name == NULL) {
DEBUG(1, ("Could not get server host name\n"));
talloc_free(tmp_ctx);
return;
}
new_uri = talloc_asprintf(service, "%s://%s:%d",
tmp, srv_name,
fo_get_server_port(server));
} else {
new_uri = talloc_strdup(service, tmp);
}
if (!new_uri) {
DEBUG(2, ("Failed to copy URI ...\n"));
talloc_free(tmp_ctx);
return;
}
DEBUG(6, ("Constructed uri '%s'\n", new_uri));
/* free old one and replace with new one */
talloc_zfree(service->uri);
service->uri = new_uri;
talloc_zfree(service->sockaddr);
service->sockaddr = talloc_steal(service, sockaddr);
talloc_free(tmp_ctx);
}
static void sdap_finalize(struct tevent_context *ev,
struct tevent_signal *se,
int signum,
int count,
void *siginfo,
void *private_data)
{
char *realm = (char *) private_data;
int ret;
ret = remove_krb5_info_files(se, realm);
if (ret != EOK) {
DEBUG(1, ("remove_krb5_info_files failed.\n"));
}
sig_term(signum);
}
errno_t sdap_install_sigterm_handler(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
const char *realm)
{
char *sig_realm;
struct tevent_signal *sige;
BlockSignals(false, SIGTERM);
sig_realm = talloc_strdup(mem_ctx, realm);
if (sig_realm == NULL) {
DEBUG(1, ("talloc_strdup failed!\n"));
return ENOMEM;
}
sige = tevent_add_signal(ev, mem_ctx, SIGTERM, SA_SIGINFO, sdap_finalize,
sig_realm);
if (sige == NULL) {
DEBUG(1, ("tevent_add_signal failed.\n"));
talloc_free(sig_realm);
return ENOMEM;
}
talloc_steal(sige, sig_realm);
return EOK;
}
void sdap_remove_kdcinfo_files_callback(void *pvt)
{
int ret;
TALLOC_CTX *tmp_ctx = NULL;
struct remove_info_files_ctx *ctx = talloc_get_type(pvt,
struct remove_info_files_ctx);
ret = be_fo_run_callbacks_at_next_request(ctx->be_ctx,
ctx->kdc_service_name);
if (ret != EOK) {
DEBUG(1, ("be_fo_run_callbacks_at_next_request failed, "
"krb5 info files will not be removed, because "
"it is unclear if they will be recreated properly.\n"));
return;
}
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
DEBUG(1, ("talloc_new failed, cannot remove krb5 info files.\n"));
return;
}
ret = remove_krb5_info_files(tmp_ctx, ctx->realm);
if (ret != EOK) {
DEBUG(1, ("remove_krb5_info_files failed.\n"));
}
talloc_zfree(tmp_ctx);
}
errno_t sdap_install_offline_callback(TALLOC_CTX *mem_ctx,
struct be_ctx *be_ctx,
const char *realm,
const char *service_name)
{
int ret;
struct remove_info_files_ctx *ctx;
ctx = talloc_zero(mem_ctx, struct remove_info_files_ctx);
if (ctx == NULL) {
DEBUG(1, ("talloc_zfree failed.\n"));
return ENOMEM;
}
ctx->be_ctx = be_ctx;
ctx->realm = talloc_strdup(ctx, realm);
ctx->kdc_service_name = talloc_strdup(ctx, service_name);
if (ctx->realm == NULL || ctx->kdc_service_name == NULL) {
DEBUG(1, ("talloc_strdup failed!\n"));
ret = ENOMEM;
goto done;
}
ret = be_add_offline_cb(ctx, be_ctx,
sdap_remove_kdcinfo_files_callback,
ctx, NULL);
if (ret != EOK) {
DEBUG(1, ("be_add_offline_cb failed.\n"));
goto done;
}
ret = EOK;
done:
if (ret != EOK) {
talloc_zfree(ctx);
}
return ret;
}
static const char *
sdap_gssapi_get_default_realm(TALLOC_CTX *mem_ctx)
{
char *krb5_realm = NULL;
const char *realm = NULL;
krb5_error_code krberr;
krb5_context context = NULL;
krberr = krb5_init_context(&context);
if (krberr) {
DEBUG(2, ("Failed to init kerberos context\n"));
goto done;
}
krberr = krb5_get_default_realm(context, &krb5_realm);
if (krberr) {
DEBUG(2, ("Failed to get default realm name: %s\n",
sss_krb5_get_error_message(context, krberr)));
goto done;
}
realm = talloc_strdup(mem_ctx, krb5_realm);
krb5_free_default_realm(context, krb5_realm);
if (!realm) {
DEBUG(0, ("Out of memory\n"));
goto done;
}
DEBUG(7, ("Will use default realm %s\n", realm));
done:
if (context) krb5_free_context(context);
return realm;
}
int sdap_gssapi_init(TALLOC_CTX *mem_ctx,
struct dp_option *opts,
struct be_ctx *bectx,
struct sdap_service *sdap_service,
struct krb5_service **krb5_service)
{
int ret;
const char *krb5_servers;
const char *krb5_realm;
const char *krb5_opt_realm;
struct krb5_service *service = NULL;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) return ENOMEM;
krb5_servers = dp_opt_get_string(opts, SDAP_KRB5_KDC);
if (krb5_servers == NULL) {
DEBUG(1, ("Missing krb5_server option, using service discovery!\n"));
}
krb5_opt_realm = dp_opt_get_string(opts, SDAP_KRB5_REALM);
if (krb5_opt_realm == NULL) {
DEBUG(2, ("Missing krb5_realm option, will use libkrb default\n"));
krb5_realm = sdap_gssapi_get_default_realm(tmp_ctx);
if (krb5_realm == NULL) {
DEBUG(0, ("Cannot determine the Kerberos realm, aborting\n"));
ret = EIO;
goto done;
}
} else {
krb5_realm = talloc_strdup(tmp_ctx, krb5_opt_realm);
if (krb5_realm == NULL) {
ret = ENOMEM;
goto done;
}
}
ret = krb5_service_init(mem_ctx, bectx, SSS_KRB5KDC_FO_SRV, krb5_servers,
krb5_realm, &service);
if (ret != EOK) {
DEBUG(0, ("Failed to init KRB5 failover service!\n"));
goto done;
}
ret = sdap_install_sigterm_handler(mem_ctx, bectx->ev, krb5_realm);
if (ret != EOK) {
DEBUG(0, ("Failed to install sigterm handler\n"));
goto done;
}
ret = sdap_install_offline_callback(mem_ctx, bectx,
krb5_realm, SSS_KRB5KDC_FO_SRV);
if (ret != EOK) {
DEBUG(0, ("Failed to install sigterm handler\n"));
goto done;
}
sdap_service->kinit_service_name = talloc_strdup(sdap_service,
service->name);
if (sdap_service->kinit_service_name == NULL) {
ret = ENOMEM;
goto done;
}
ret = EOK;
*krb5_service = service;
done:
talloc_free(tmp_ctx);
if (ret != EOK) talloc_free(service);
return ret;
}
int sdap_service_init(TALLOC_CTX *memctx, struct be_ctx *ctx,
const char *service_name, const char *dns_service_name,
const char *urls, struct sdap_service **_service)
{
TALLOC_CTX *tmp_ctx;
struct sdap_service *service;
LDAPURLDesc *lud;
char **list = NULL;
char *srv_user_data;
int ret;
int i;
tmp_ctx = talloc_new(memctx);
if (!tmp_ctx) {
return ENOMEM;
}
service = talloc_zero(tmp_ctx, struct sdap_service);
if (!service) {
ret = ENOMEM;
goto done;
}
ret = be_fo_add_service(ctx, service_name);
if (ret != EOK) {
DEBUG(1, ("Failed to create failover service!\n"));
goto done;
}
service->name = talloc_strdup(service, service_name);
if (!service->name) {
ret = ENOMEM;
goto done;
}
if (!urls) {
urls = BE_SRV_IDENTIFIER;
}
/* split server parm into a list */
ret = split_on_separator(tmp_ctx, urls, ',', true, &list, NULL);
if (ret != EOK) {
DEBUG(1, ("Failed to parse server list!\n"));
goto done;
}
/* now for each URI add a new server to the failover service */
for (i = 0; list[i]; i++) {
if (be_fo_is_srv_identifier(list[i])) {
if (!dns_service_name) {
DEBUG(0, ("Missing DNS service name for service [%s].\n",
service_name));
ret = EINVAL;
goto done;
}
srv_user_data = talloc_strdup(service, dns_service_name);
if (!srv_user_data) {
ret = ENOMEM;
goto done;
}
ret = be_fo_add_srv_server(ctx, service_name, dns_service_name,
BE_FO_PROTO_TCP, false, srv_user_data);
if (ret) {
DEBUG(0, ("Failed to add server\n"));
goto done;
}
DEBUG(6, ("Added service lookup\n"));
continue;
}
ret = ldap_url_parse(list[i], &lud);
if (ret != LDAP_SUCCESS) {
DEBUG(0, ("Failed to parse ldap URI (%s)!\n", list[i]));
ret = EINVAL;
goto done;
}
if (lud->lud_host == NULL) {
DEBUG(2, ("The LDAP URI (%s) did not contain a host name\n",
list[i]));
ldap_free_urldesc(lud);
continue;
}
DEBUG(6, ("Added URI %s\n", list[i]));
talloc_steal(service, list[i]);
ret = be_fo_add_server(ctx, service->name,
lud->lud_host, lud->lud_port, list[i]);
ldap_free_urldesc(lud);
if (ret) {
goto done;
}
}
ret = be_fo_service_add_callback(memctx, ctx, service->name,
sdap_uri_callback, service);
if (ret != EOK) {
DEBUG(1, ("Failed to add failover callback!\n"));
goto done;
}
ret = EOK;
done:
if (ret == EOK) {
*_service = talloc_steal(memctx, service);
}
talloc_zfree(tmp_ctx);
return ret;
}
errno_t string_to_shadowpw_days(const char *s, long *d)
{
long l;
char *endptr;
if (s == NULL || *s == '\0') {
*d = -1;
return EOK;
}
errno = 0;
l = strtol(s, &endptr, 10);
if (errno != 0) {
DEBUG(1, ("strtol failed [%d][%s].\n", errno, strerror(errno)));
return errno;
}
if (*endptr != '\0') {
DEBUG(1, ("Input string [%s] is invalid.\n", s));
return EINVAL;
}
if (l < 0) {
DEBUG(1, ("Input string contains not allowed negative value [%d].\n",
l));
return EINVAL;
}
*d = l;
return EOK;
}
errno_t get_sysdb_attr_name(TALLOC_CTX *mem_ctx,
struct sdap_attr_map *map,
size_t map_size,
const char *ldap_name,
char **sysdb_name)
{
size_t i;
for (i = 0; i < map_size; i++) {
/* Skip map entries with no name (may depend on
* schema selected)
*/
if (!map[i].name) continue;
/* Check if it is a mapped attribute */
if(strcasecmp(ldap_name, map[i].name) == 0) break;
}
if (i < map_size) {
/* We found a mapped name, return that */
*sysdb_name = talloc_strdup(mem_ctx, map[i].sys_name);
} else {
/* Not mapped, use the same name */
*sysdb_name = talloc_strdup(mem_ctx, ldap_name);
}
if (!*sysdb_name) {
return ENOMEM;
}
return EOK;
}
errno_t list_missing_attrs(TALLOC_CTX *mem_ctx,
struct sdap_attr_map *map,
size_t map_size,
const char **expected_attrs,
struct sysdb_attrs *recvd_attrs,
char ***missing_attrs)
{
errno_t ret;
size_t attr_count = 0;
size_t i, j, k;
char **missing = NULL;
char *sysdb_name;
TALLOC_CTX *tmp_ctx;
if (!expected_attrs || !recvd_attrs || !missing_attrs) {
return EINVAL;
}
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
/* Count the expected attrs */
while(expected_attrs[attr_count]) attr_count++;
/* Allocate the maximum possible values for missing_attrs, to
* be on the safe side
*/
missing = talloc_array(tmp_ctx, char *, attr_count);
if (!missing) {
ret = ENOMEM;
goto done;
}
k = 0;
/* Check for each expected attribute */
for (i = 0; i < attr_count; i++) {
ret = get_sysdb_attr_name(tmp_ctx, map, map_size,
expected_attrs[i],
&sysdb_name);
if (ret != EOK) {
goto done;
}
/* objectClass is a special-case and we need to
* check for it explicitly.
*/
if (strcasecmp(sysdb_name, "objectClass") == 0) {
talloc_free(sysdb_name);
continue;
}
/* GECOS is another special case. Its value can come
* either from the 'gecos' attribute or the 'cn'
* attribute. It's best if we just never remove it.
*/
if (strcasecmp(sysdb_name, SYSDB_GECOS) == 0) {
talloc_free(sysdb_name);
continue;
}
for (j = 0; j < recvd_attrs->num; j++) {
/* Check whether this expected attribute appeared in the
* received attributes and had a non-zero number of
* values.
*/
if ((strcasecmp(recvd_attrs->a[j].name, sysdb_name) == 0) &&
(recvd_attrs->a[j].num_values > 0)) {
break;
}
}
if (j < recvd_attrs->num) {
/* Attribute was found, therefore not missing */
talloc_free(sysdb_name);
} else {
/* Attribute could not be found. Add to the missing list */
missing[k] = talloc_steal(missing, sysdb_name);
k++;
}
}
/* Terminate the list */
missing[k] = NULL;
ret = EOK;
*missing_attrs = talloc_steal(mem_ctx, missing);
done:
talloc_free(tmp_ctx);
return ret;
}
bool sdap_is_secure_uri(const char *uri)
{
/* LDAPS URI's are secure channels */
if (strncasecmp(uri, LDAP_SSL_URI, strlen(LDAP_SSL_URI)) == 0) {
return true;
}
return false;
}
char *sdap_get_id_specific_filter(TALLOC_CTX *mem_ctx,
const char *base_filter,
const char *extra_filter)
{
char *filter = NULL;
if (!extra_filter) {
return talloc_strdup(mem_ctx, base_filter);
}
if (extra_filter[0] == '(') {
filter = talloc_asprintf(mem_ctx, "(&%s%s)",
base_filter, extra_filter);
} else {
filter = talloc_asprintf(mem_ctx, "(&%s(%s))",
base_filter, extra_filter);
}
return filter; /* NULL or not */
}