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authorPavel Březina <pbrezina@redhat.com>2011-11-08 14:42:46 +0100
committerPavel Březina <pbrezina@redhat.com>2011-12-16 13:59:31 +0100
commit2a6c47d00d8998fff483706d04023b591c9ef0c2 (patch)
tree64ed5acf3f3b5e5f3e646deabbebcb242e7f6fed
parentb93509b66d760bf8a326c4595e89b93f1d8cee91 (diff)
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SUDO integration - LDAP provider
-rw-r--r--Makefile.am4
-rw-r--r--src/providers/ldap/ldap_common.h5
-rw-r--r--src/providers/ldap/ldap_init.c39
-rw-r--r--src/providers/ldap/sdap_sudo.c566
-rw-r--r--src/providers/ldap/sdap_sudo.h47
5 files changed, 660 insertions, 1 deletions
diff --git a/Makefile.am b/Makefile.am
index 2144a14d..f1b07b98 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -334,6 +334,7 @@ dist_noinst_HEADERS = \
src/providers/ldap/sdap_async.h \
src/providers/ldap/sdap_async_private.h \
src/providers/ldap/sdap_sudo_cache.h \
+ src/providers/ldap/sdap_sudo.h \
src/providers/ldap/sdap_id_op.h \
src/providers/ipa/ipa_common.h \
src/providers/ipa/ipa_access.h \
@@ -871,7 +872,8 @@ libsss_ldap_la_LDFLAGS = \
-avoid-version \
-module
if BUILD_SUDO
-libsss_ldap_la_SOURCES += src/providers/ldap/sdap_sudo_cache.c
+libsss_ldap_la_SOURCES += src/providers/ldap/sdap_sudo_cache.c \
+ src/providers/ldap/sdap_sudo.c
endif
libsss_proxy_la_SOURCES = \
diff --git a/src/providers/ldap/ldap_common.h b/src/providers/ldap/ldap_common.h
index 844f605f..d7aa71ab 100644
--- a/src/providers/ldap/ldap_common.h
+++ b/src/providers/ldap/ldap_common.h
@@ -83,6 +83,11 @@ void sdap_pam_chpass_handler(struct be_req *breq);
/* access */
void sdap_pam_access_handler(struct be_req *breq);
+#ifdef BUILD_SUDO
+/* sudo */
+void sdap_sudo_handler(struct be_req *breq);
+#endif
+
void sdap_handler_done(struct be_req *req, int dp_err,
diff --git a/src/providers/ldap/ldap_init.c b/src/providers/ldap/ldap_init.c
index b4d844de..e7be90d9 100644
--- a/src/providers/ldap/ldap_init.c
+++ b/src/providers/ldap/ldap_init.c
@@ -26,6 +26,7 @@
#include "providers/ldap/ldap_common.h"
#include "providers/ldap/sdap_async_private.h"
#include "providers/ldap/sdap_access.h"
+#include "providers/ldap/sdap_sudo.h"
static void sdap_shutdown(struct be_req *req);
@@ -54,6 +55,14 @@ struct bet_ops sdap_access_ops = {
.finalize = sdap_shutdown
};
+/* SUDO Handler */
+#ifdef BUILD_SUDO
+struct bet_ops sdap_sudo_ops = {
+ .handler = sdap_sudo_handler,
+ .finalize = sdap_shutdown
+};
+#endif
+
/* Please use this only for short lists */
errno_t check_order_list_for_duplicates(char **list,
bool case_sensitive)
@@ -386,6 +395,36 @@ done:
return ret;
}
+int sssm_ldap_sudo_init(struct be_ctx *be_ctx,
+ struct bet_ops **ops,
+ void **pvt_data)
+{
+#ifdef BUILD_SUDO
+ struct sdap_id_ctx *id_ctx = NULL;
+ void *data = NULL;
+ int ret;
+
+ ret = sssm_ldap_id_init(be_ctx, ops, &data);
+ if (ret != EOK) {
+ return ret;
+ }
+
+ id_ctx = talloc_get_type(data, struct sdap_id_ctx);
+ *ops = &sdap_sudo_ops;
+ *pvt_data = id_ctx;
+
+ ret = ldap_get_sudo_options(id_ctx, be_ctx->cdb,
+ be_ctx->conf_path, id_ctx->opts);
+ if (ret != EOK) {
+ return ret;
+ }
+
+ return ret;
+#else
+ return EOK;
+#endif
+}
+
static void sdap_shutdown(struct be_req *req)
{
/* TODO: Clean up any internal data */
diff --git a/src/providers/ldap/sdap_sudo.c b/src/providers/ldap/sdap_sudo.c
new file mode 100644
index 00000000..9bf77dde
--- /dev/null
+++ b/src/providers/ldap/sdap_sudo.c
@@ -0,0 +1,566 @@
+/*
+ Authors:
+ Pavel Březina <pbrezina@redhat.com>
+
+ Copyright (C) 2011 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 <http://www.gnu.org/licenses/>.
+*/
+
+#include <errno.h>
+#include <string.h>
+#include <tevent.h>
+
+#include "providers/dp_backend.h"
+#include "providers/ldap/ldap_common.h"
+#include "providers/ldap/sdap.h"
+#include "providers/ldap/sdap_async.h"
+#include "providers/ldap/sdap_sudo.h"
+#include "providers/ldap/sdap_sudo_cache.h"
+#include "db/sysdb_sudo.h"
+
+struct sdap_sudo_load_sudoers_state {
+ struct tevent_context *ev;
+ struct sdap_sudo_ctx *sudo_ctx;
+ struct sdap_options *opts;
+ struct sdap_handle *sh;
+ struct sysdb_attrs **ldap_rules; /* search result will be stored here */
+ size_t ldap_rules_count; /* search result will be stored here */
+
+ const char **attrs;
+ const char *filter;
+ size_t base_iter;
+ struct sdap_search_base **search_bases;
+ int timeout;
+};
+
+static int sdap_sudo_connect(struct sdap_sudo_ctx *sudo_ctx);
+static void sdap_sudo_connect_done(struct tevent_req *req);
+
+static struct tevent_req * sdap_sudo_load_sudoers_send(TALLOC_CTX *mem_ctx,
+ struct sdap_sudo_ctx *sudo_ctx);
+static errno_t sdap_sudo_load_sudoers_next_base(struct tevent_req *req);
+static void sdap_sudo_load_sudoers_process(struct tevent_req *subreq);
+static int sdap_sudo_load_sudoers_recv(struct tevent_req *req,
+ TALLOC_CTX *mem_ctx,
+ size_t *rules_count,
+ struct sysdb_attrs ***rules);
+static void sdap_sudo_load_sudoers_done(struct tevent_req *req);
+
+static int sdap_sudo_purge_sudoers(struct sdap_sudo_ctx *sudo_ctx);
+static int sdap_sudo_store_sudoers(struct sdap_sudo_ctx *sudo_ctx,
+ size_t replies_count,
+ struct sysdb_attrs **replies);
+
+const char *sdap_sudo_build_filter(TALLOC_CTX *mem_ctx,
+ struct sdap_attr_map *map,
+ const char *username,
+ uid_t uid,
+ char **groups);
+
+static void sdap_sudo_reply(struct sdap_sudo_ctx *sudo_ctx, int errcode)
+{
+ struct be_req *be_req = sudo_ctx->be_req;
+
+ talloc_zfree(sudo_ctx);
+
+ if (errcode == EOK) {
+ sdap_handler_done(be_req, DP_ERR_OK, errcode, strerror(errcode));
+ } else {
+ sdap_handler_done(be_req, DP_ERR_FATAL, errcode, strerror(errcode));
+ }
+}
+
+static void sdap_sudo_reply_offline(struct sdap_sudo_ctx *sudo_ctx)
+{
+ struct be_req *be_req = sudo_ctx->be_req;
+
+ talloc_zfree(sudo_ctx);
+
+ sdap_handler_done(be_req, DP_ERR_OFFLINE, EAGAIN, "Provider is offline");
+}
+
+void sdap_sudo_handler(struct be_req *be_req)
+{
+ struct sdap_sudo_ctx *sudo_ctx = NULL;
+ struct be_sudo_req *sudo_req = NULL;
+ struct sdap_id_ctx *id_ctx = NULL;
+ int ret = EOK;
+
+ id_ctx = talloc_get_type(be_req->be_ctx->bet_info[BET_SUDO].pvt_bet_data,
+ struct sdap_id_ctx);
+
+ sudo_req = talloc_get_type(be_req->req_data, struct be_sudo_req);
+
+ sudo_ctx = talloc_zero(be_req, struct sdap_sudo_ctx);
+ if (!sudo_ctx) {
+ ret = ENOMEM;
+ goto fail;
+ }
+
+ sudo_ctx->be_ctx = id_ctx->be;
+ sudo_ctx->be_req = be_req;
+ sudo_ctx->req = sudo_req;
+ sudo_ctx->sdap_ctx = id_ctx;
+ sudo_ctx->sdap_op = NULL;
+ sudo_ctx->sdap_conn_cache = id_ctx->conn_cache;
+
+ /* get user info */
+ sudo_ctx->username = sudo_req->username;
+ if (sudo_ctx->username != NULL) {
+ ret = sysdb_get_sudo_user_info(sudo_ctx, sudo_ctx->username,
+ sudo_ctx->be_ctx->sysdb,
+ &sudo_ctx->uid, &sudo_ctx->groups);
+ if (ret != EOK) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("Unable to get uid and groups of %s\n",
+ sudo_ctx->username));
+ goto fail;
+ }
+ } else {
+ sudo_ctx->uid = 0;
+ sudo_ctx->groups = NULL;
+ }
+
+ DEBUG(SSSDBG_FUNC_DATA, ("Requested refresh for: %s\n",
+ sudo_req->username ? sudo_req->username : "<ALL>\n"));
+
+ ret = sdap_sudo_connect(sudo_ctx);
+ if (ret != EOK) {
+ goto fail;
+ }
+
+ return;
+
+fail:
+ be_req->fn(be_req, DP_ERR_FATAL, ret, NULL);
+}
+
+int sdap_sudo_connect(struct sdap_sudo_ctx *sudo_ctx)
+{
+ struct tevent_req *req = NULL;
+ int ret;
+
+ if (be_is_offline(sudo_ctx->be_ctx)) {
+ sdap_sudo_reply_offline(sudo_ctx);
+ return EOK;
+ }
+
+ if (sudo_ctx->sdap_op == NULL) {
+ sudo_ctx->sdap_op = sdap_id_op_create(sudo_ctx,
+ sudo_ctx->sdap_conn_cache);
+ if (sudo_ctx->sdap_op == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("sdap_id_op_create() failed\n"));
+ return EIO;
+ }
+ }
+
+ req = sdap_id_op_connect_send(sudo_ctx->sdap_op, sudo_ctx, &ret);
+ if (req == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE,
+ ("sdap_id_op_connect_send() failed: %d(%s)\n", ret, strerror(ret)));
+ talloc_zfree(sudo_ctx->sdap_op);
+ return ret;
+ }
+
+ tevent_req_set_callback(req, sdap_sudo_connect_done, sudo_ctx);
+
+ return EOK;
+}
+
+void sdap_sudo_connect_done(struct tevent_req *req)
+{
+ struct sdap_sudo_ctx *sudo_ctx = NULL;
+ int dp_error;
+ int ret;
+
+ sudo_ctx = tevent_req_callback_data(req, struct sdap_sudo_ctx);
+
+ ret = sdap_id_op_connect_recv(req, &dp_error);
+ talloc_zfree(req);
+
+ if (dp_error == DP_ERR_OFFLINE) {
+ talloc_zfree(sudo_ctx->sdap_op);
+ sdap_sudo_reply_offline(sudo_ctx);
+ return;
+ } else if (ret != EOK) {
+ DEBUG(SSSDBG_CRIT_FAILURE,
+ ("SUDO LDAP connection failed - %s\n", strerror(ret)));
+ goto fail;
+ }
+
+ DEBUG(SSSDBG_TRACE_FUNC, ("SUDO LDAP connection successful\n"));
+
+ req = sdap_sudo_load_sudoers_send(sudo_ctx, sudo_ctx);
+ if (req == NULL) {
+ ret = EFAULT;
+ goto fail;
+ }
+
+ tevent_req_set_callback(req, sdap_sudo_load_sudoers_done, sudo_ctx);
+
+ return;
+
+fail:
+ sdap_sudo_reply(sudo_ctx, ret);
+}
+
+struct tevent_req * sdap_sudo_load_sudoers_send(TALLOC_CTX *mem_ctx,
+ struct sdap_sudo_ctx *sudo_ctx)
+{
+ struct tevent_req *req = NULL;
+ struct sdap_sudo_load_sudoers_state *state = NULL;
+ int ret;
+
+ req = tevent_req_create(mem_ctx, &state, struct sdap_sudo_load_sudoers_state);
+ if (!req) {
+ return NULL;
+ }
+
+ state->ev = sudo_ctx->be_ctx->ev;
+ state->sudo_ctx = sudo_ctx;
+ state->opts = sudo_ctx->sdap_ctx->opts;
+ state->sh = sdap_id_op_handle(sudo_ctx->sdap_op);
+ state->base_iter = 0;
+ state->search_bases = state->opts->sudo_search_bases;
+ state->timeout = dp_opt_get_int(state->opts->basic, SDAP_SEARCH_TIMEOUT);
+ state->ldap_rules = NULL;
+ state->ldap_rules_count = 0;
+
+ /* create filter */
+ state->filter = sdap_sudo_build_filter(state,
+ state->opts->sudorule_map,
+ sudo_ctx->username,
+ sudo_ctx->uid,
+ sudo_ctx->groups);
+ if (state->filter == NULL) {
+ goto fail;
+ }
+
+ /* create attrs from map */
+ ret = build_attrs_from_map(state, state->opts->sudorule_map,
+ SDAP_OPTS_SUDO, &state->attrs);
+ if (ret != EOK) {
+ goto fail;
+ }
+
+ /* begin search */
+ ret = sdap_sudo_load_sudoers_next_base(req);
+ if (ret != EOK) {
+ tevent_req_error(req, ret);
+ tevent_req_post(req, sudo_ctx->be_ctx->ev);
+ }
+
+ return req;
+
+fail:
+ talloc_zfree(req);
+ return NULL;
+}
+
+static errno_t sdap_sudo_load_sudoers_next_base(struct tevent_req *req)
+{
+ struct tevent_req *subreq = NULL;
+ struct sdap_sudo_load_sudoers_state *state = NULL;
+ struct sdap_search_base *search_base = NULL;
+ char *filter = NULL;
+
+ state = tevent_req_data(req, struct sdap_sudo_load_sudoers_state);
+ search_base = state->search_bases[state->base_iter];
+ if (search_base == NULL) {
+ /* should not happen */
+ DEBUG(SSSDBG_CRIT_FAILURE, ("search_base is null\n"));
+ return EFAULT;
+ }
+
+ /* create filter */
+ filter = sdap_get_id_specific_filter(state, state->filter,
+ search_base->filter);
+ if (filter == NULL) {
+ return ENOMEM;
+ }
+
+ /* send request */
+ DEBUG(SSSDBG_TRACE_FUNC,
+ ("Searching for sudo rules with base [%s]\n",
+ search_base->basedn));
+
+ subreq = sdap_get_generic_send(state,
+ state->ev,
+ state->opts,
+ state->sh,
+ search_base->basedn,
+ search_base->scope,
+ filter,
+ state->attrs,
+ state->opts->sudorule_map,
+ SDAP_OPTS_SUDO,
+ state->timeout);
+ if (subreq == NULL) {
+ return ENOMEM;
+ }
+
+ tevent_req_set_callback(subreq, sdap_sudo_load_sudoers_process, req);
+
+ return EOK;
+}
+
+static void sdap_sudo_load_sudoers_process(struct tevent_req *subreq)
+{
+ struct tevent_req *req = NULL;
+ struct sdap_sudo_load_sudoers_state *state = NULL;
+ struct sdap_search_base *search_base = NULL;
+ struct sysdb_attrs **attrs = NULL;
+ size_t count;
+ int ret;
+ int i;
+
+ req = tevent_req_callback_data(subreq, struct tevent_req);
+ state = tevent_req_data(req, struct sdap_sudo_load_sudoers_state);
+ search_base = state->search_bases[state->base_iter];
+
+ DEBUG(SSSDBG_TRACE_FUNC,
+ ("Receiving sudo rules with base [%s]\n",
+ search_base->basedn));
+
+ ret = sdap_get_generic_recv(subreq, state, &count, &attrs);
+ talloc_zfree(subreq);
+ if (ret) {
+ tevent_req_error(req, ret);
+ return;
+ }
+
+ /* add rules to result */
+ if (count > 0) {
+ state->ldap_rules = talloc_realloc(state, state->ldap_rules,
+ struct sysdb_attrs *,
+ state->ldap_rules_count + count);
+ if (state->ldap_rules == NULL) {
+ tevent_req_error(req, ENOMEM);
+ return;
+ }
+
+ for (i = 0; i < count; i++) {
+ state->ldap_rules[state->ldap_rules_count + i] = talloc_steal(
+ state->ldap_rules, attrs[i]);
+ }
+
+ state->ldap_rules_count += count;
+ }
+
+ /* go to next base */
+ state->base_iter++;
+ if (state->search_bases[state->base_iter]) {
+ ret = sdap_sudo_load_sudoers_next_base(req);
+ if (ret != EOK) {
+ tevent_req_error(req, ret);
+ }
+
+ return;
+ }
+
+ /* we are done */
+ tevent_req_done(req);
+}
+
+int sdap_sudo_load_sudoers_recv(struct tevent_req *req,
+ TALLOC_CTX *mem_ctx,
+ size_t *rules_count,
+ struct sysdb_attrs ***rules)
+{
+ struct sdap_sudo_load_sudoers_state *state = NULL;
+
+ state = tevent_req_data(req, struct sdap_sudo_load_sudoers_state);
+
+ TEVENT_REQ_RETURN_ON_ERROR(req);
+
+ *rules_count = state->ldap_rules_count;
+ *rules = talloc_steal(mem_ctx, state->ldap_rules);
+
+ return EOK;
+}
+
+void sdap_sudo_load_sudoers_done(struct tevent_req *req)
+{
+ struct sdap_sudo_ctx *sudo_ctx = NULL;
+ struct sysdb_attrs **rules = NULL;
+ size_t rules_count;
+ int ret;
+
+ sudo_ctx = tevent_req_callback_data(req, struct sdap_sudo_ctx);
+
+ ret = sdap_sudo_load_sudoers_recv(req, sudo_ctx, &rules_count, &rules);
+ talloc_zfree(req);
+ if (ret != EOK) {
+ goto done;
+ }
+
+ DEBUG(SSSDBG_TRACE_FUNC, ("Received %d rules\n", rules_count));
+
+ /* purge cache */
+ /* TODO purge with filter */
+ DEBUG(SSSDBG_TRACE_FUNC, ("Purging sudo cache with filter %s\n", ""));
+ ret = sdap_sudo_purge_sudoers(sudo_ctx);
+ if (ret != EOK) {
+ goto done;
+ }
+
+ /* store rules */
+ ret = sdap_sudo_store_sudoers(sudo_ctx, rules_count, rules);
+ if (ret != EOK) {
+ goto done;
+ }
+
+ DEBUG(SSSDBG_TRACE_FUNC, ("Sudoers is successfuly stored in cache\n"));
+
+ ret = EOK;
+
+done:
+ sdap_sudo_reply(sudo_ctx, ret);
+}
+
+int sdap_sudo_purge_sudoers(struct sdap_sudo_ctx *sudo_ctx)
+{
+ struct sysdb_ctx *sysdb_ctx = sudo_ctx->be_ctx->sysdb;
+ char *filter = NULL;
+ int ret;
+
+ if (sudo_ctx->username != NULL) {
+ ret = sysdb_get_sudo_filter(sudo_ctx, sudo_ctx->username, sudo_ctx->uid,
+ sudo_ctx->groups, SYSDB_SUDO_FILTER_NGRS
+ | SYSDB_SUDO_FILTER_INCLUDE_ALL
+ | SYSDB_SUDO_FILTER_INCLUDE_DFL, &filter);
+ if (ret != EOK) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("Unable to create filter to purge "
+ "sudoers cache [%d]: %s\n", ret, strerror(ret)));
+ return ret;
+ }
+ }
+
+ /* Purge rules */
+ ret = sysdb_purge_sudorule_subtree(sysdb_ctx, sudo_ctx->be_ctx->domain,
+ filter);
+ if (ret != EOK) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("Unable to purge sudoers cache [%d]: %s\n",
+ ret, strerror(ret)));
+ return ret;
+ }
+
+ return EOK;
+}
+
+int sdap_sudo_store_sudoers(struct sdap_sudo_ctx *sudo_ctx,
+ size_t rules_count,
+ struct sysdb_attrs **rules)
+{
+ struct sysdb_ctx *sysdb_ctx = sudo_ctx->be_ctx->sysdb;
+ errno_t ret;
+
+ /* Empty sudoers? Done. */
+ if (rules_count == 0 || rules == NULL) {
+ return EOK;
+ }
+
+ ret = sdap_save_native_sudorule_list(sysdb_ctx,
+ sudo_ctx->sdap_ctx->opts->sudorule_map,
+ rules, rules_count);
+ if (ret != EOK) {
+ DEBUG(SSSDBG_OP_FAILURE, ("failed to save sudo rules [%d]: %s\n",
+ ret, strerror(ret)));
+ return ret;
+ }
+
+ return EOK;
+}
+
+/* alway update cn=defaults and sudoUser=ALL */
+const char *sdap_sudo_build_filter(TALLOC_CTX *mem_ctx,
+ struct sdap_attr_map *map,
+ const char *username,
+ uid_t uid,
+ char **groups)
+{
+ char *filter = NULL;
+ char *output = NULL;
+ char *sanitized = NULL;
+ char **group = NULL;
+ int ret;
+
+ if (username == NULL) {
+ return talloc_asprintf(mem_ctx, SDAP_SUDO_FILTER_ALL,
+ map[SDAP_OC_SUDORULE].name);
+ }
+
+ /* user name */
+ ret = sss_filter_sanitize(filter, username, &sanitized);
+ if (ret != EOK) {
+ goto fail;
+ }
+ filter = talloc_asprintf_append(filter, SDAP_SUDO_FILTER_USERNAME,
+ map[SDAP_AT_SUDO_USER].name,
+ sanitized);
+ if (filter == NULL) {
+ goto fail;
+ }
+
+ /* user uid */
+ filter = talloc_asprintf_append(filter, SDAP_SUDO_FILTER_UID,
+ map[SDAP_AT_SUDO_USER].name,
+ uid);
+ if (filter == NULL) {
+ goto fail;
+ }
+
+ /* groups */
+ if (groups != NULL) {
+ for (group = groups; *group != NULL; group++) {
+ ret = sss_filter_sanitize(filter, *group, &sanitized);
+ if (ret != EOK) {
+ goto fail;
+ }
+ filter = talloc_asprintf_append(filter, SDAP_SUDO_FILTER_GROUP,
+ map[SDAP_AT_SUDO_USER].name,
+ sanitized);
+ if (filter == NULL) {
+ goto fail;
+ }
+ }
+ }
+
+ /* netgroups */
+ /*
+ * FIXME: load only netgroups user is member of
+ * FIXME: add option to disable this filter
+ */
+ filter = talloc_asprintf_append(filter, SDAP_SUDO_FILTER_NETGROUP,
+ map[SDAP_AT_SUDO_USER].name,
+ "*");
+ if (filter == NULL) {
+ goto fail;
+ }
+
+
+ output = talloc_asprintf(mem_ctx, SDAP_SUDO_FILTER_USER,
+ map[SDAP_OC_SUDORULE].name,
+ map[SDAP_AT_SUDO_NAME].name,
+ SDAP_SUDO_DEFAULTS, /* FIXME: add option for this */
+ map[SDAP_AT_SUDO_USER].name,
+ filter);
+
+ talloc_free(filter);
+ return output;
+
+fail:
+ talloc_free(filter);
+ return NULL;
+}
diff --git a/src/providers/ldap/sdap_sudo.h b/src/providers/ldap/sdap_sudo.h
new file mode 100644
index 00000000..2a8bc8da
--- /dev/null
+++ b/src/providers/ldap/sdap_sudo.h
@@ -0,0 +1,47 @@
+/*
+ Authors:
+ Pavel Březina <pbrezina@redhat.com>
+
+ Copyright (C) 2011 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 <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _SDAP_SUDO_H_
+#define _SDAP_SUDO_H_
+
+struct sdap_sudo_ctx {
+ struct be_ctx *be_ctx;
+ struct be_req *be_req;
+ struct be_sudo_req *req;
+ struct sdap_id_ctx *sdap_ctx;
+ struct sdap_id_op *sdap_op;
+ struct sdap_id_conn_cache *sdap_conn_cache;
+
+ const char *username;
+ uint_t uid;
+ char **groups;
+};
+
+/* (&(objectClass=sudoRole)(|(cn=defaults)(sudoUser=ALL)%s)) */
+#define SDAP_SUDO_FILTER_USER "(&(objectClass=%s)(|(%s=%s)(%s=ALL)%s))"
+#define SDAP_SUDO_FILTER_ALL "(objectClass=%s)"
+#define SDAP_SUDO_DEFAULTS "defaults"
+
+#define SDAP_SUDO_FILTER_USERNAME "(%s=%s)"
+#define SDAP_SUDO_FILTER_UID "(%s=#%u)"
+#define SDAP_SUDO_FILTER_GROUP "(%s=%%%s)"
+#define SDAP_SUDO_FILTER_NETGROUP "(%s=+%s)"
+
+#endif /* _SDAP_SUDO_H_ */