sysdb_sudo.c revision 04d138472cc086fb7961f0d378852b09961b1a33
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek Jakub Hrozek <jhrozek@redhat.com>
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek Copyright (C) 2011 Red Hat
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek This program is free software; you can redistribute it and/or modify
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek it under the terms of the GNU General Public License as published by
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek the Free Software Foundation; either version 3 of the License, or
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek (at your option) any later version.
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek This program is distributed in the hope that it will be useful,
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek but WITHOUT ANY WARRANTY; without even the implied warranty of
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek GNU General Public License for more details.
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek You should have received a copy of the GNU General Public License
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek along with this program. If not, see <http://www.gnu.org/licenses/>.
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek/* ==================== Utility functions ==================== */
80941dd89fd8bc7c4a1272c304f737ce0fd5fc54Sumit Bosestatic errno_t sysdb_sudo_convert_time(const char *str, time_t *unix_time)
5a2cce34cf8843613b0b9dfde054b3d471dd5f3aPavel Březina /* SUDO requires times to be in generalized time format:
5a2cce34cf8843613b0b9dfde054b3d471dd5f3aPavel Březina * YYYYMMDDHHMMSS[.|,fraction][(+|-HHMM)|Z]
5a2cce34cf8843613b0b9dfde054b3d471dd5f3aPavel Březina * We need to use more format strings to parse this with strptime().
5a2cce34cf8843613b0b9dfde054b3d471dd5f3aPavel Březina const char *formats[] = {"%Y%m%d%H%M%SZ", /* 201212121300Z */
5a2cce34cf8843613b0b9dfde054b3d471dd5f3aPavel Březina "%Y%m%d%H%M%S.0Z",
5a2cce34cf8843613b0b9dfde054b3d471dd5f3aPavel Březina "%Y%m%d%H%M%S.0%z",
5a2cce34cf8843613b0b9dfde054b3d471dd5f3aPavel Březina "%Y%m%d%H%M%S,0Z",
5a2cce34cf8843613b0b9dfde054b3d471dd5f3aPavel Březina "%Y%m%d%H%M%S,0%z",
5a2cce34cf8843613b0b9dfde054b3d471dd5f3aPavel Březina for (format = formats; *format != NULL; format++) {
e6f4dbf8474e928ca7da33d6be18e94cbc66a5dePavel Březina /* strptime() may leave some fields uninitialized */
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březinastatic errno_t sysdb_sudo_check_time(struct sysdb_attrs *rule,
db419c61035cb262010cc8d5a4047191c2b60f05Pavel Březina ret = sysdb_attrs_get_string(rule, SYSDB_SUDO_CACHE_AT_CN, &name);
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina * From man sudoers.ldap:
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina * If multiple sudoNotBefore entries are present, the *earliest* is used.
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina * If multiple sudoNotAfter entries are present, the *last one* is used.
4be402505ba20b43361753f0e6e1589c9b029e81Jakub Hrozek * From sudo sources, ldap.c:
4be402505ba20b43361753f0e6e1589c9b029e81Jakub Hrozek * If either the sudoNotAfter or sudoNotBefore attributes are missing,
4be402505ba20b43361753f0e6e1589c9b029e81Jakub Hrozek * no time restriction shall be imposed.
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina /* check for sudoNotBefore */
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina ret = sysdb_attrs_get_string_array(rule, SYSDB_SUDO_CACHE_AT_NOTBEFORE,
d1f3610aefcb634f212d4c099fac102b3e4dee59Pavel Březina for (i=0; values[i] ; i++) {
d1f3610aefcb634f212d4c099fac102b3e4dee59Pavel Březina ret = sysdb_sudo_convert_time(values[i], &converted);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_MINOR_FAILURE, "Invalid time format in rule [%s]!\n",
d1f3610aefcb634f212d4c099fac102b3e4dee59Pavel Březina /* Grab the earliest */
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina /* check for sudoNotAfter */
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina ret = sysdb_attrs_get_string_array(rule, SYSDB_SUDO_CACHE_AT_NOTAFTER,
d1f3610aefcb634f212d4c099fac102b3e4dee59Pavel Březina for (i=0; values[i] ; i++) {
d1f3610aefcb634f212d4c099fac102b3e4dee59Pavel Březina ret = sysdb_sudo_convert_time(values[i], &converted);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_MINOR_FAILURE, "Invalid time format in rule [%s]!\n",
d1f3610aefcb634f212d4c099fac102b3e4dee59Pavel Březina /* Grab the latest */
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_TRACE_ALL, "Rule [%s] matches time restrictions\n",
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_TRACE_ALL, "Rule [%s] does not match time "
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březinaerrno_t sysdb_sudo_filter_rules_by_time(TALLOC_CTX *mem_ctx,
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina bool allowed = false;
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina for (i = 0; i < in_num_rules; i++) {
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina ret = sysdb_sudo_check_time(in_rules[i], now, &allowed);
c9aab1c04c399ca2d1abef74f6df22ced34983dcPavel Březina rules = talloc_realloc(tmp_ctx, rules, struct sysdb_attrs *,
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozeksysdb_get_sudo_filter(TALLOC_CTX *mem_ctx, const char *username,
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek uid_t uid, char **groupnames, unsigned int flags,
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina /* build specific filter */
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina specific_filter = talloc_zero(tmp_ctx, char); /* assign to tmp_ctx */
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina specific_filter = talloc_asprintf_append(specific_filter, "(%s=ALL)",
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina specific_filter = talloc_asprintf_append(specific_filter, "(%s=defaults)",
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina if ((flags & SYSDB_SUDO_FILTER_USERNAME) && (username != NULL)) {
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina specific_filter = talloc_asprintf_append(specific_filter, "(%s=%s)",
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina if ((flags & SYSDB_SUDO_FILTER_UID) && (uid != 0)) {
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina specific_filter = talloc_asprintf_append(specific_filter, "(%s=#%llu)",
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina (unsigned long long) uid);
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina if ((flags & SYSDB_SUDO_FILTER_GROUPS) && (groupnames != NULL)) {
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina specific_filter = talloc_asprintf_append(specific_filter, "(%s=%%%s)",
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina specific_filter = talloc_asprintf_append(specific_filter, "(%s=+*)",
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina /* build global filter */
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina filter = talloc_asprintf(tmp_ctx, "(&(%s=%s)",
f6171b2bc954a367f316853ab71090eb213bdee3Pavel Březina filter = talloc_asprintf_append(filter, "(|%s)", specific_filter);
f7af8c5b369938725e47585c641ae5b017d442a1Pavel Březina filter = talloc_asprintf_append(filter, "(&(%s<=%lld))",
4c08db0fb0dda3d27b1184248ca5c800d7ce23f0Michal Zidek ret = sysdb_search_user_by_name(tmp_ctx, domain, username, attrs, &msg);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_CRIT_FAILURE, "Error looking up user %s\n", username);
cda8ff6cfdef22356dc3c06ec5204344912f0f0bPavel Březina uid = ldb_msg_find_attr_as_uint64(msg, SYSDB_UIDNUM, 0);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_CRIT_FAILURE, "A user with no UID?\n");
e7b5b99e5a5d276f32039c4fb8b21ba51bdb1537Pavel Březina /* resolve secondary groups */
cda8ff6cfdef22356dc3c06ec5204344912f0f0bPavel Březina groups = ldb_msg_find_element(msg, SYSDB_MEMBEROF);
cda8ff6cfdef22356dc3c06ec5204344912f0f0bPavel Březina /* No groups for this user in sysdb currently */
e7b5b99e5a5d276f32039c4fb8b21ba51bdb1537Pavel Březina sysdb_groupnames = talloc_array(tmp_ctx, char *, num_groups + 1);
cda8ff6cfdef22356dc3c06ec5204344912f0f0bPavel Březina /* Get a list of the groups by groupname only */
e7b5b99e5a5d276f32039c4fb8b21ba51bdb1537Pavel Březina /* resolve primary group */
e7b5b99e5a5d276f32039c4fb8b21ba51bdb1537Pavel Březina gid = ldb_msg_find_attr_as_uint64(msg, SYSDB_GIDNUM, 0);
4c08db0fb0dda3d27b1184248ca5c800d7ce23f0Michal Zidek ret = sysdb_search_group_by_gid(tmp_ctx, domain, gid, group_attrs,
e7b5b99e5a5d276f32039c4fb8b21ba51bdb1537Pavel Březina primary_group = ldb_msg_find_attr_as_string(group_msg, SYSDB_NAME,
e7b5b99e5a5d276f32039c4fb8b21ba51bdb1537Pavel Březina sysdb_groupnames = talloc_realloc(tmp_ctx, sysdb_groupnames,
e7b5b99e5a5d276f32039c4fb8b21ba51bdb1537Pavel Březina sysdb_groupnames[num_groups - 1] = talloc_strdup(sysdb_groupnames,
e7b5b99e5a5d276f32039c4fb8b21ba51bdb1537Pavel Březina NULL_CHECK(sysdb_groupnames[num_groups - 1], ret, done);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_CRIT_FAILURE, "Error looking up group [%d]: %s\n",
cda8ff6cfdef22356dc3c06ec5204344912f0f0bPavel Březina *groupnames = talloc_steal(mem_ctx, sysdb_groupnames);
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozeksysdb_save_sudorule(struct sss_domain_info *domain,
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_TRACE_FUNC, "Adding sudo rule %s\n", rule_name);
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek ret = sysdb_attrs_add_string(attrs, SYSDB_OBJECTCLASS,
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_OP_FAILURE, "Could not set rule object class [%d]: %s\n",
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek ret = sysdb_attrs_add_string(attrs, SYSDB_NAME, rule_name);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_OP_FAILURE, "Could not set name attribute [%d]: %s\n",
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_OP_FAILURE, "sysdb_store_custom failed [%d]: %s\n",
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozekstatic errno_t sysdb_sudo_set_refresh_time(struct sss_domain_info *domain,
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozek dn = ldb_dn_new_fmt(tmp_ctx, domain->sysdb->ldb,
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozek lret = ldb_search(domain->sysdb->ldb, tmp_ctx, &res, dn, LDB_SCOPE_BASE,
44749ce0c1fee9babee80060fa0db99eebb2ab51Pavel Březina lret = ldb_msg_add_string(msg, "cn", SUDORULE_SUBDIR);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov "Got more than one reply for base search!\n");
44749ce0c1fee9babee80060fa0db99eebb2ab51Pavel Březina lret = ldb_msg_add_empty(msg, attr_name, LDB_FLAG_MOD_REPLACE, NULL);
44749ce0c1fee9babee80060fa0db99eebb2ab51Pavel Březina lret = ldb_msg_add_fmt(msg, attr_name, "%lld", (long long)value);
04d138472cc086fb7961f0d378852b09961b1a33Lukas Slebodnik "ldb operation failed: [%s](%d)[%s]\n",
04d138472cc086fb7961f0d378852b09961b1a33Lukas Slebodnik ldb_strerror(lret), lret, ldb_errstring(domain->sysdb->ldb));
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozekstatic errno_t sysdb_sudo_get_refresh_time(struct sss_domain_info *domain,
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozek dn = ldb_dn_new_fmt(tmp_ctx, domain->sysdb->ldb, SYSDB_TMPL_CUSTOM_SUBTREE,
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozek lret = ldb_search(domain->sysdb->ldb, tmp_ctx, &res, dn, LDB_SCOPE_BASE,
44749ce0c1fee9babee80060fa0db99eebb2ab51Pavel Březina /* This entry has not been populated in LDB
44749ce0c1fee9babee80060fa0db99eebb2ab51Pavel Březina * This is a common case, as unlike LDAP,
44749ce0c1fee9babee80060fa0db99eebb2ab51Pavel Březina * LDB does not need to have all of its parent
44749ce0c1fee9babee80060fa0db99eebb2ab51Pavel Březina * objects actually exist.
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov "Got more than one reply for base search!\n");
44749ce0c1fee9babee80060fa0db99eebb2ab51Pavel Březina *value = ldb_msg_find_attr_as_int(res->msgs[0], attr_name, 0);
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozekerrno_t sysdb_sudo_set_last_full_refresh(struct sss_domain_info *domain,
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozekerrno_t sysdb_sudo_get_last_full_refresh(struct sss_domain_info *domain,
f5d4b05027acce06e3509ecb68869d1c7ef37180Pavel Březina/* ==================== Purge functions ==================== */
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozekstatic errno_t sysdb_sudo_purge_all(struct sss_domain_info *domain)
e2ac9be4f293b96f3c8992f1171e44bc1da5cfcaMichal Zidek base_dn = sysdb_custom_subtree_dn(tmp_ctx, domain, SUDORULE_SUBDIR);
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozek ret = sysdb_delete_recursive(domain->sysdb, base_dn, true);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_OP_FAILURE, "sysdb_delete_recursive failed.\n");
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozekerrno_t sysdb_sudo_purge_byname(struct sss_domain_info *domain,
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_TRACE_INTERNAL, "Deleting sudo rule %s\n", name);
d115f40c7a3999e3cbe705a2ff9cf0fd493f80fbMichal Zidek return sysdb_delete_custom(domain, name, SUDORULE_SUBDIR);
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozekerrno_t sysdb_sudo_purge_byfilter(struct sss_domain_info *domain,
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek const char *name;
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek /* just purge all if there's no filter */
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek /* match entries based on the filter and remove them one by one */
d115f40c7a3999e3cbe705a2ff9cf0fd493f80fbMichal Zidek ret = sysdb_search_custom(tmp_ctx, domain, filter,
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_TRACE_FUNC, "No rules matched\n");
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_CRIT_FAILURE, "Error looking up SUDO rules");
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_CRIT_FAILURE, "Failed to start transaction\n");
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek for (i = 0; i < count; i++) {
3f98cdc011bb4e8cd22c088f288b0bcdb6452492Jakub Hrozek name = ldb_msg_find_attr_as_string(msgs[i], SYSDB_NAME, NULL);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_OP_FAILURE, "A rule without a name?\n");
f643754db81eeade60485bbe3d80324d889cc4f3Pavel Březina /* skip this one but still delete other entries */
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_OP_FAILURE, "Could not delete rule %s\n", name);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_CRIT_FAILURE, "Failed to commit transaction\n");
6a31a971a376a992afb838fe60b311360c970267Jakub Hrozek sret = sysdb_transaction_cancel(domain->sysdb);
a3c8390d19593b1e5277d95bfb4ab206d4785150Nikolai Kondrashov DEBUG(SSSDBG_OP_FAILURE, "Could not cancel transaction\n");