/* SSSD LDAP Provider Common Functions Authors: Simo Sorce Copyright (C) 2008-2010 Red Hat 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 . */ #include "providers/ldap/ldap_common.h" #include "providers/fail_over.h" #include "providers/ldap/sdap_async_private.h" #include "providers/krb5/krb5_common.h" #include "util/sss_krb5.h" #include "util/crypto/sss_crypto.h" /* a fd the child process would log into */ int ldap_child_debug_fd = -1; struct dp_option default_basic_opts[] = { { "ldap_uri", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_default_bind_dn", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_default_authtok_type", DP_OPT_STRING, { "password" }, NULL_STRING}, { "ldap_default_authtok", DP_OPT_BLOB, NULL_BLOB, NULL_BLOB }, { "ldap_search_timeout", DP_OPT_NUMBER, { .number = 6 }, NULL_NUMBER }, { "ldap_network_timeout", DP_OPT_NUMBER, { .number = 6 }, NULL_NUMBER }, { "ldap_opt_timeout", DP_OPT_NUMBER, { .number = 6 }, NULL_NUMBER }, { "ldap_tls_reqcert", DP_OPT_STRING, { "hard" }, NULL_STRING }, { "ldap_user_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_user_search_scope", DP_OPT_STRING, { "sub" }, NULL_STRING }, { "ldap_user_search_filter", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_group_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_group_search_scope", DP_OPT_STRING, { "sub" }, NULL_STRING }, { "ldap_group_search_filter", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_schema", DP_OPT_STRING, { "rfc2307" }, NULL_STRING }, { "ldap_offline_timeout", DP_OPT_NUMBER, { .number = 60 }, NULL_NUMBER }, { "ldap_force_upper_case_realm", DP_OPT_BOOL, BOOL_FALSE, BOOL_FALSE }, { "ldap_enumeration_refresh_timeout", DP_OPT_NUMBER, { .number = 300 }, NULL_NUMBER }, { "ldap_purge_cache_timeout", DP_OPT_NUMBER, { .number = 10800 }, NULL_NUMBER }, { "entry_cache_timeout", DP_OPT_NUMBER, { .number = 5400 }, NULL_NUMBER }, { "ldap_tls_cacert", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_tls_cacertdir", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_tls_cert", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_tls_key", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_tls_cipher_suite", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_id_use_start_tls", DP_OPT_BOOL, BOOL_FALSE, BOOL_FALSE }, { "ldap_sasl_mech", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_sasl_authid", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_krb5_keytab", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_krb5_init_creds", DP_OPT_BOOL, BOOL_TRUE, BOOL_TRUE }, /* use the same parm name as the krb5 module so we set it only once */ { "krb5_server", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "krb5_realm", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_pwd_policy", DP_OPT_STRING, { "none" }, NULL_STRING }, { "ldap_referrals", DP_OPT_BOOL, BOOL_TRUE, BOOL_TRUE }, { "account_cache_expiration", DP_OPT_NUMBER, { .number = 0 }, NULL_NUMBER }, { "ldap_dns_service_name", DP_OPT_STRING, { SSS_LDAP_SRV_NAME }, NULL_STRING }, { "ldap_krb5_ticket_lifetime", DP_OPT_NUMBER, { .number = (24 * 60 * 60) }, NULL_NUMBER }, { "ldap_access_filter", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_netgroup_search_base", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_group_nesting_level", DP_OPT_NUMBER, { .number = 2 }, NULL_NUMBER }, { "ldap_deref", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_account_expire_policy", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_access_order", DP_OPT_STRING, { "filter" }, NULL_STRING }, { "ldap_chpass_uri", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_chpass_dns_service_name", DP_OPT_STRING, NULL_STRING, NULL_STRING }, { "ldap_enumeration_search_timeout", DP_OPT_NUMBER, { .number = 60 }, NULL_NUMBER }, /* Do not include ldap_auth_disable_tls_never_use_in_production in the * manpages or SSSDConfig API */ { "ldap_auth_disable_tls_never_use_in_production", DP_OPT_BOOL, BOOL_FALSE, BOOL_FALSE }, { "ldap_page_size", DP_OPT_NUMBER, { .number = 1000 }, NULL_NUMBER } }; 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} }; 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} }; 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 } }; 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_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, -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; } 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")); } 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, memctx, 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; } 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; } 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; } 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; } 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; } /* 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; } 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, ctx->be->domain, &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; 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_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; } new_uri = talloc_asprintf(service, "%s://%s:%d", tmp, fo_get_server_name(server), 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; } 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; struct krb5_service *service = NULL; 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_realm = dp_opt_get_string(opts, SDAP_KRB5_REALM); if (krb5_realm == NULL) { DEBUG(0, ("Missing krb5_realm option, will use libkrb default\n")); } 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: 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; }