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|
/*
SSSD
Authors:
Stephen Gallagher <sgallagh@redhat.com>
Copyright (C) 2012 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 "util/util.h"
#include "providers/ldap/sdap_async.h"
#include "providers/ldap/ldap_common.h"
#include "providers/ldap/sdap_async_private.h"
#include "providers/ldap/sdap_idmap.h"
#include "providers/ad/ad_common.h"
#include "lib/idmap/sss_idmap.h"
struct sdap_ad_match_rule_initgr_state {
struct tevent_context *ev;
struct sdap_options *opts;
struct sysdb_ctx *sysdb;
struct sss_domain_info *domain;
struct sdap_handle *sh;
const char *name;
const char *orig_dn;
const char **attrs;
int timeout;
const char *base_filter;
char *filter;
size_t count;
struct sysdb_attrs **groups;
size_t base_iter;
struct sdap_search_base **search_bases;
};
static errno_t
sdap_get_ad_match_rule_initgroups_next_base(struct tevent_req *req);
static void
sdap_get_ad_match_rule_initgroups_step(struct tevent_req *subreq);
struct tevent_req *
sdap_get_ad_match_rule_initgroups_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct sdap_options *opts,
struct sysdb_ctx *sysdb,
struct sss_domain_info *domain,
struct sdap_handle *sh,
const char *name,
const char *orig_dn,
int timeout)
{
errno_t ret;
struct tevent_req *req;
struct sdap_ad_match_rule_initgr_state *state;
const char **filter_members;
char *sanitized_user_dn;
req = tevent_req_create(mem_ctx, &state,
struct sdap_ad_match_rule_initgr_state);
if (!req) return NULL;
state->ev = ev;
state->opts = opts;
state->sysdb = sysdb;
state->domain = domain;
state->sh = sh;
state->name = name;
state->orig_dn = orig_dn;
state->base_iter = 0;
state->search_bases = opts->sdom->group_search_bases;
/* Request all of the group attributes that we know
* about, except for 'member' because that wastes a
* lot of bandwidth here and we only really
* care about a single member (the one we already
* have).
*/
filter_members = talloc_array(state, const char *, 2);
if (!filter_members) {
ret = ENOMEM;
goto immediate;
}
filter_members[0] = opts->group_map[SDAP_AT_GROUP_MEMBER].name;
filter_members[1] = NULL;
ret = build_attrs_from_map(state, opts->group_map,
SDAP_OPTS_GROUP,
filter_members,
&state->attrs, NULL);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE,
("Could not build attribute map: [%s]\n",
strerror(ret)));
goto immediate;
}
/* Sanitize the user DN in case we have special characters in DN */
ret = sss_filter_sanitize(state, state->orig_dn, &sanitized_user_dn);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE,
("Could not sanitize user DN: %s\n",
strerror(ret)));
goto immediate;
}
/* Craft a special filter according to
* http://msdn.microsoft.com/en-us/library/windows/desktop/aa746475%28v=vs.85%29.aspx
*/
state->base_filter =
talloc_asprintf(state,
"(&(%s:%s:=%s)(objectClass=%s))",
state->opts->group_map[SDAP_AT_GROUP_MEMBER].name,
SDAP_MATCHING_RULE_IN_CHAIN,
sanitized_user_dn,
state->opts->group_map[SDAP_OC_GROUP].name);
talloc_zfree(sanitized_user_dn);
if (!state->base_filter) {
ret = ENOMEM;
goto immediate;
}
/* Start the loop through the search bases to get all of the
* groups to which this user belongs.
*/
ret = sdap_get_ad_match_rule_initgroups_next_base(req);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE,
("sdap_get_ad_match_rule_members_next_base failed: [%s]\n",
strerror(ret)));
goto immediate;
}
return req;
immediate:
tevent_req_error(req, ret);
tevent_req_post(req, ev);
return req;
}
static errno_t
sdap_get_ad_match_rule_initgroups_next_base(struct tevent_req *req)
{
struct tevent_req *subreq;
struct sdap_ad_match_rule_initgr_state *state;
state = tevent_req_data(req, struct sdap_ad_match_rule_initgr_state);
talloc_zfree(state->filter);
state->filter = sdap_get_id_specific_filter(state,
state->base_filter,
state->search_bases[state->base_iter]->filter);
if (!state->filter) {
return ENOMEM;
}
DEBUG(SSSDBG_TRACE_FUNC,
("Searching for groups with base [%s]\n",
state->search_bases[state->base_iter]->basedn));
subreq = sdap_get_generic_send(
state, state->ev, state->opts, state->sh,
state->search_bases[state->base_iter]->basedn,
state->search_bases[state->base_iter]->scope,
state->filter, state->attrs,
state->opts->group_map, SDAP_OPTS_GROUP,
state->timeout, true);
if (!subreq) {
return ENOMEM;
}
tevent_req_set_callback(subreq,
sdap_get_ad_match_rule_initgroups_step,
req);
return EOK;
}
static void
sdap_get_ad_match_rule_initgroups_step(struct tevent_req *subreq)
{
errno_t ret;
struct tevent_req *req =
tevent_req_callback_data(subreq, struct tevent_req);
struct sdap_ad_match_rule_initgr_state *state =
tevent_req_data(req, struct sdap_ad_match_rule_initgr_state);
size_t count, i;
struct sysdb_attrs **groups;
char **sysdb_grouplist;
ret = sdap_get_generic_recv(subreq, state, &count, &groups);
talloc_zfree(subreq);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE,
("LDAP search failed: [%s]\n", strerror(ret)));
goto error;
}
DEBUG(SSSDBG_TRACE_LIBS,
("Search for users returned %zu results\n", count));
/* Add this batch of groups to the list */
if (count > 0) {
state->groups = talloc_realloc(state, state->groups,
struct sysdb_attrs *,
state->count + count + 1);
if (!state->groups) {
tevent_req_error(req, ENOMEM);
return;
}
/* Copy the new groups into the list */
for (i = 0; i < count; i++) {
state->groups[state->count + i] =
talloc_steal(state->groups, groups[i]);
}
state->count += count;
state->groups[state->count] = NULL;
}
/* Continue checking other search bases */
state->base_iter++;
if (state->search_bases[state->base_iter]) {
/* There are more search bases to try */
ret = sdap_get_ad_match_rule_initgroups_next_base(req);
if (ret != EOK) {
goto error;
}
return;
}
/* No more search bases. Save the groups. */
if (state->count == 0) {
DEBUG(SSSDBG_TRACE_LIBS,
("User is not a member of any group in the search bases\n"));
}
/* Get the current sysdb group list for this user
* so we can update it.
*/
ret = get_sysdb_grouplist(state, state->sysdb, state->domain,
state->name, &sysdb_grouplist);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE,
("Could not get the list of groups for [%s] in the sysdb: "
"[%s]\n",
state->name, strerror(ret)));
goto error;
}
/* The extensibleMatch search rule eliminates the need for
* nested group searches, so we can just update the
* memberships now.
*/
ret = sdap_initgr_common_store(state->sysdb,
state->domain,
state->opts,
state->name,
SYSDB_MEMBER_USER,
sysdb_grouplist,
state->groups,
state->count);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE,
("Could not store groups for user [%s]: [%s]\n",
state->name, strerror(ret)));
goto error;
}
tevent_req_done(req);
return;
error:
tevent_req_error(req, ret);
}
errno_t
sdap_get_ad_match_rule_initgroups_recv(struct tevent_req *req)
{
TEVENT_REQ_RETURN_ON_ERROR(req);
return EOK;
}
struct sdap_get_ad_tokengroups_state {
struct tevent_context *ev;
struct sss_idmap_ctx *idmap_ctx;
const char *username;
char **sids;
size_t num_sids;
};
static void sdap_get_ad_tokengroups_done(struct tevent_req *subreq);
static struct tevent_req *
sdap_get_ad_tokengroups_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct sdap_options *opts,
struct sdap_handle *sh,
const char *name,
const char *orig_dn,
int timeout)
{
struct sdap_get_ad_tokengroups_state *state = NULL;
struct tevent_req *req = NULL;
struct tevent_req *subreq = NULL;
const char *attrs[] = {AD_TOKENGROUPS_ATTR, NULL};
errno_t ret;
req = tevent_req_create(mem_ctx, &state,
struct sdap_get_ad_tokengroups_state);
if (req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("tevent_req_create() failed\n"));
return NULL;
}
state->idmap_ctx = opts->idmap_ctx->map;
state->ev = ev;
state->username = talloc_strdup(state, name);
if (state->username == NULL) {
ret = ENOMEM;
goto immediately;
}
subreq = sdap_get_generic_send(state, state->ev, opts, sh, orig_dn,
LDAP_SCOPE_BASE, NULL, attrs,
NULL, 0, timeout, false);
if (subreq == NULL) {
ret = ENOMEM;
goto immediately;
}
tevent_req_set_callback(subreq, sdap_get_ad_tokengroups_done, req);
return req;
immediately:
if (ret == EOK) {
tevent_req_done(req);
} else {
tevent_req_error(req, ret);
}
tevent_req_post(req, ev);
return req;
}
static void sdap_get_ad_tokengroups_done(struct tevent_req *subreq)
{
TALLOC_CTX *tmp_ctx = NULL;
struct sdap_get_ad_tokengroups_state *state = NULL;
struct tevent_req *req = NULL;
struct sysdb_attrs **users = NULL;
struct ldb_message_element *el = NULL;
enum idmap_error_code err;
char *sid_str = NULL;
size_t num_users;
size_t i;
errno_t ret;
req = tevent_req_callback_data(subreq, struct tevent_req);
state = tevent_req_data(req, struct sdap_get_ad_tokengroups_state);
ret = sdap_get_generic_recv(subreq, tmp_ctx, &num_users, &users);
talloc_zfree(subreq);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE,
("LDAP search failed: [%s]\n", strerror(ret)));
goto done;
}
if (num_users != 1) {
DEBUG(SSSDBG_MINOR_FAILURE,
("More than one result on a base search!\n"));
ret = EINVAL;
goto done;
}
/* get the list of sids from tokengroups */
ret = sysdb_attrs_get_el_ext(users[0], AD_TOKENGROUPS_ATTR, false, &el);
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_LIBS, ("No tokenGroups entries for [%s]\n",
state->username));
state->sids = NULL;
state->num_sids = 0;
ret = EOK;
goto done;
} else if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE, ("Could not read tokenGroups attribute: "
"[%s]\n", strerror(ret)));
goto done;
}
state->num_sids = 0;
state->sids = talloc_zero_array(state, char*, el->num_values);
if (state->sids == NULL) {
ret = ENOMEM;
goto done;
}
/* convert binary sid to string */
for (i = 0; i < el->num_values; i++) {
err = sss_idmap_bin_sid_to_sid(state->idmap_ctx, el->values[i].data,
el->values[i].length, &sid_str);
if (err != IDMAP_SUCCESS) {
DEBUG(SSSDBG_MINOR_FAILURE,
("Could not convert binary SID to string: [%s]. Skipping\n",
idmap_error_string(err)));
continue;
}
state->sids[i] = talloc_move(state->sids, &sid_str);
state->num_sids++;
}
/* shrink array to final number of elements */
state->sids = talloc_realloc(state, state->sids, char*, state->num_sids);
if (state->sids == NULL) {
ret = ENOMEM;
goto done;
}
ret = EOK;
done:
talloc_free(tmp_ctx);
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
tevent_req_done(req);
}
static errno_t sdap_get_ad_tokengroups_recv(TALLOC_CTX *mem_ctx,
struct tevent_req *req,
size_t *_num_sids,
char ***_sids)
{
struct sdap_get_ad_tokengroups_state *state = NULL;
state = tevent_req_data(req, struct sdap_get_ad_tokengroups_state);
TEVENT_REQ_RETURN_ON_ERROR(req);
if (_num_sids != NULL) {
*_num_sids = state->num_sids;
}
if (_sids != NULL) {
*_sids = talloc_steal(mem_ctx, state->sids);
}
return EOK;
}
static errno_t
sdap_ad_tokengroups_update_members(TALLOC_CTX *mem_ctx,
const char *username,
struct sysdb_ctx *sysdb,
struct sss_domain_info *domain,
char **ldap_groups)
{
TALLOC_CTX *tmp_ctx = NULL;
char **sysdb_groups = NULL;
char **add_groups = NULL;
char **del_groups = NULL;
errno_t ret;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_new() failed\n"));
return ENOMEM;
}
/* Get the current sysdb group list for this user so we can update it. */
ret = get_sysdb_grouplist_dn(tmp_ctx, sysdb, domain,
username, &sysdb_groups);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE, ("Could not get the list of groups for "
"[%s] in the sysdb: [%s]\n", username, strerror(ret)));
goto done;
}
/* Find the differences between the sysdb and LDAP lists.
* Groups in the sysdb only must be removed. */
ret = diff_string_lists(tmp_ctx, ldap_groups, sysdb_groups,
&add_groups, &del_groups, NULL);
if (ret != EOK) {
goto done;
}
DEBUG(SSSDBG_TRACE_LIBS, ("Updating memberships for [%s]\n", username));
ret = sysdb_update_members_dn(domain->sysdb, domain, username,
SYSDB_MEMBER_USER,
(const char *const *) add_groups,
(const char *const *) del_groups);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE, ("Membership update failed [%d]: %s\n",
ret, strerror(ret)));
goto done;
}
done:
talloc_free(tmp_ctx);
return ret;
}
struct sdap_ad_resolve_sids_state {
struct tevent_context *ev;
struct sdap_id_ctx *id_ctx;
struct sdap_id_conn_ctx *conn;
struct sdap_options *opts;
struct sss_domain_info *domain;
char **sids;
const char *current_sid;
int index;
};
static errno_t sdap_ad_resolve_sids_step(struct tevent_req *req);
static void sdap_ad_resolve_sids_done(struct tevent_req *subreq);
static struct tevent_req *
sdap_ad_resolve_sids_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct sdap_id_ctx *id_ctx,
struct sdap_id_conn_ctx *conn,
struct sdap_options *opts,
struct sss_domain_info *domain,
char **sids)
{
struct sdap_ad_resolve_sids_state *state = NULL;
struct tevent_req *req = NULL;
errno_t ret;
req = tevent_req_create(mem_ctx, &state,
struct sdap_ad_resolve_sids_state);
if (req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("tevent_req_create() failed\n"));
return NULL;
}
state->ev = ev;
state->id_ctx = id_ctx;
state->conn = conn;
state->opts = opts;
state->domain = get_domains_head(domain);
state->sids = sids;
state->index = 0;
if (state->sids == NULL) {
ret = EOK;
goto immediately;
}
ret = sdap_ad_resolve_sids_step(req);
if (ret != EAGAIN) {
goto immediately;
}
return req;
immediately:
if (ret == EOK) {
tevent_req_done(req);
} else {
tevent_req_error(req, ret);
}
tevent_req_post(req, ev);
return req;
}
static errno_t sdap_ad_resolve_sids_step(struct tevent_req *req)
{
struct sdap_ad_resolve_sids_state *state = NULL;
struct tevent_req *subreq = NULL;
struct sdap_domain *sdap_domain = NULL;
struct sss_domain_info *domain = NULL;
state = tevent_req_data(req, struct sdap_ad_resolve_sids_state);
do {
state->current_sid = state->sids[state->index];
if (state->current_sid == NULL) {
return EOK;
}
state->index++;
domain = find_subdomain_by_sid(state->domain, state->current_sid);
if (domain == NULL) {
DEBUG(SSSDBG_MINOR_FAILURE, ("SID %s does not belong to any known "
"domain\n", state->current_sid));
}
} while (domain == NULL);
sdap_domain = sdap_domain_get(state->opts, domain);
if (sdap_domain == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("SDAP domain does not exist?\n"));
return ERR_INTERNAL;
}
subreq = groups_get_send(state, state->ev, state->id_ctx, sdap_domain,
state->conn, state->current_sid,
BE_FILTER_SECID, BE_ATTR_CORE, false);
if (subreq == NULL) {
return ENOMEM;
}
tevent_req_set_callback(subreq, sdap_ad_resolve_sids_done, req);
return EAGAIN;
}
static void sdap_ad_resolve_sids_done(struct tevent_req *subreq)
{
struct sdap_ad_resolve_sids_state *state = NULL;
struct tevent_req *req = NULL;
int dp_error;
int sdap_error;
errno_t ret;
req = tevent_req_callback_data(subreq, struct tevent_req);
state = tevent_req_data(req, struct sdap_ad_resolve_sids_state);
ret = groups_get_recv(subreq, &dp_error, &sdap_error);
talloc_zfree(subreq);
if (ret != EOK || sdap_error != EOK || dp_error != DP_ERR_OK) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Unable to resolve SID %s [dp_error: %d, "
"sdap_error: %d, ret: %d]: %s\n", state->current_sid, dp_error,
sdap_error, ret, strerror(ret)));
goto done;
}
ret = sdap_ad_resolve_sids_step(req);
if (ret == EAGAIN) {
/* continue with next SID */
return;
}
done:
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
tevent_req_done(req);
}
static errno_t sdap_ad_resolve_sids_recv(struct tevent_req *req)
{
TEVENT_REQ_RETURN_ON_ERROR(req);
return EOK;
}
struct sdap_ad_tokengroups_initgr_mapping_state {
struct tevent_context *ev;
struct sdap_options *opts;
struct sdap_handle *sh;
struct sdap_idmap_ctx *idmap_ctx;
struct sysdb_ctx *sysdb;
struct sss_domain_info *domain;
const char *orig_dn;
int timeout;
const char *username;
struct sdap_id_op *op;
};
static void
sdap_ad_tokengroups_initgr_mapping_connect_done(struct tevent_req *subreq);
static void sdap_ad_tokengroups_initgr_mapping_done(struct tevent_req *subreq);
static struct tevent_req *
sdap_ad_tokengroups_initgr_mapping_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct sdap_options *opts,
struct sysdb_ctx *sysdb,
struct sss_domain_info *domain,
struct sdap_handle *sh,
const char *name,
const char *orig_dn,
int timeout)
{
struct sdap_ad_tokengroups_initgr_mapping_state *state = NULL;
struct tevent_req *req = NULL;
struct tevent_req *subreq = NULL;
struct sdap_domain *sdom;
struct ad_id_ctx *subdom_id_ctx;
errno_t ret;
req = tevent_req_create(mem_ctx, &state,
struct sdap_ad_tokengroups_initgr_mapping_state);
if (req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("tevent_req_create() failed\n"));
return NULL;
}
state->ev = ev;
state->opts = opts;
state->sh = sh;
state->idmap_ctx = opts->idmap_ctx;
state->sysdb = sysdb;
state->domain = domain;
state->timeout = timeout;
state->orig_dn = orig_dn;
state->username = talloc_strdup(state, name);
if (state->username == NULL) {
ret = ENOMEM;
goto immediately;
}
sdom = sdap_domain_get(opts, domain);
if (sdom == NULL || sdom->pvt == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("No ID ctx available for [%s].\n",
domain->name));
ret = EINVAL;
goto immediately;
}
subdom_id_ctx = talloc_get_type(sdom->pvt, struct ad_id_ctx);
state->op = sdap_id_op_create(state, subdom_id_ctx->ldap_ctx->conn_cache);
if (!state->op) {
DEBUG(2, ("sdap_id_op_create failed\n"));
ret = ENOMEM;
goto immediately;
}
subreq = sdap_id_op_connect_send(state->op, state, &ret);
if (subreq == NULL) {
ret = ENOMEM;
goto immediately;
}
tevent_req_set_callback(subreq,
sdap_ad_tokengroups_initgr_mapping_connect_done,
req);
return req;
immediately:
if (ret == EOK) {
tevent_req_done(req);
} else {
tevent_req_error(req, ret);
}
tevent_req_post(req, ev);
return req;
}
static void
sdap_ad_tokengroups_initgr_mapping_connect_done(struct tevent_req *subreq)
{
struct sdap_ad_tokengroups_initgr_mapping_state *state = NULL;
struct tevent_req *req = NULL;
int ret;
int dp_error = DP_ERR_FATAL;
req = tevent_req_callback_data(subreq, struct tevent_req);
state = tevent_req_data(req,
struct sdap_ad_tokengroups_initgr_mapping_state);
ret = sdap_id_op_connect_recv(subreq, &dp_error);
talloc_zfree(subreq);
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
subreq = sdap_get_ad_tokengroups_send(state, state->ev, state->opts,
sdap_id_op_handle(state->op),
state->username,
state->orig_dn, state->timeout);
if (subreq == NULL) {
tevent_req_error(req, ENOMEM);
return;
}
tevent_req_set_callback(subreq, sdap_ad_tokengroups_initgr_mapping_done,
req);
return;
}
static void sdap_ad_tokengroups_initgr_mapping_done(struct tevent_req *subreq)
{
TALLOC_CTX *tmp_ctx = NULL;
struct sdap_ad_tokengroups_initgr_mapping_state *state = NULL;
struct tevent_req *req = NULL;
struct sss_domain_info *domain = NULL;
struct ldb_message *msg = NULL;
const char *attrs[] = {SYSDB_NAME, NULL};
const char *name = NULL;
const char *sid = NULL;
char **sids = NULL;
size_t num_sids = 0;
size_t i;
time_t now;
gid_t gid;
char **groups = NULL;
size_t num_groups;
errno_t ret, sret;
bool in_transaction = false;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_new() failed\n"));
ret = ENOMEM;
goto done;
}
req = tevent_req_callback_data(subreq, struct tevent_req);
state = tevent_req_data(req, struct sdap_ad_tokengroups_initgr_mapping_state);
ret = sdap_get_ad_tokengroups_recv(state, subreq, &num_sids, &sids);
talloc_zfree(subreq);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Unable to acquire tokengroups [%d]: %s\n",
ret, strerror(ret)));
goto done;
}
num_groups = 0;
groups = talloc_zero_array(tmp_ctx, char*, num_sids + 1);
if (groups == NULL) {
ret = ENOMEM;
goto done;
}
now = time(NULL);
ret = sysdb_transaction_start(state->sysdb);
if (ret != EOK) {
goto done;
}
in_transaction = true;
for (i = 0; i < num_sids; i++) {
sid = sids[i];
DEBUG(SSSDBG_TRACE_LIBS, ("Processing membership SID [%s]\n", sid));
ret = sdap_idmap_sid_to_unix(state->idmap_ctx, sid, &gid);
if (ret == ENOTSUP) {
DEBUG(SSSDBG_TRACE_FUNC, ("Skipping built-in object.\n"));
ret = EOK;
continue;
} else if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE, ("Could not convert SID to GID: [%s]. "
"Skipping\n", strerror(ret)));
continue;
}
domain = find_subdomain_by_sid(get_domains_head(state->domain), sid);
if (domain == NULL) {
DEBUG(SSSDBG_MINOR_FAILURE, ("Domain not found for SID %s\n", sid));
continue;
}
DEBUG(SSSDBG_TRACE_LIBS, ("SID [%s] maps to GID [%"SPRIgid"]\n",
sid, gid));
/* Check whether this GID already exists in the sysdb */
ret = sysdb_search_group_by_gid(tmp_ctx, domain->sysdb, domain,
gid, attrs, &msg);
if (ret == EOK) {
name = ldb_msg_find_attr_as_string(msg, SYSDB_NAME, NULL);
if (name == NULL) {
DEBUG(SSSDBG_MINOR_FAILURE,
("Could not retrieve group name from sysdb\n"));
ret = EINVAL;
goto done;
}
} else if (ret == ENOENT) {
/* This is a new group. For now, we will store it under the name
* of its SID. When a direct lookup of the group or its GID occurs,
* it will replace this temporary entry. */
name = sid;
ret = sysdb_add_incomplete_group(domain->sysdb, domain, name, gid,
NULL, sid, false, now);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE, ("Could not create incomplete "
"group: [%s]\n", strerror(ret)));
goto done;
}
} else {
/* Unexpected error */
DEBUG(SSSDBG_MINOR_FAILURE, ("Could not look up group in sysdb: "
"[%s]\n", strerror(ret)));
goto done;
}
groups[num_groups] = sysdb_group_strdn(tmp_ctx, domain->name, name);
if (groups[num_groups] == NULL) {
ret = ENOMEM;
goto done;
}
num_groups++;
}
groups[num_groups] = NULL;
ret = sdap_ad_tokengroups_update_members(state, state->username,
state->sysdb, state->domain,
groups);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE, ("Membership update failed [%d]: %s\n",
ret, strerror(ret)));
goto done;
}
ret = sysdb_transaction_commit(state->sysdb);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Could not commit transaction! [%s]\n",
strerror(ret)));
goto done;
}
in_transaction = false;
done:
talloc_free(tmp_ctx);
if (in_transaction) {
sret = sysdb_transaction_cancel(state->sysdb);
DEBUG(SSSDBG_FATAL_FAILURE, ("Could not cancel transaction! [%s]\n",
strerror(sret)));
}
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
tevent_req_done(req);
}
static int sdap_ad_tokengroups_initgr_mapping_recv(struct tevent_req *req)
{
TEVENT_REQ_RETURN_ON_ERROR(req);
return EOK;
}
struct sdap_ad_tokengroups_initgr_posix_state {
struct tevent_context *ev;
struct sdap_id_ctx *id_ctx;
struct sdap_id_conn_ctx *conn;
struct sdap_options *opts;
struct sdap_handle *sh;
struct sysdb_ctx *sysdb;
struct sss_domain_info *domain;
const char *orig_dn;
int timeout;
const char *username;
struct sdap_id_op *op;
};
static void
sdap_ad_tokengroups_initgr_posix_tg_done(struct tevent_req *subreq);
static void
sdap_ad_tokengroups_initgr_posix_sids_connect_done(struct tevent_req *subreq);
static void
sdap_ad_tokengroups_initgr_posix_sids_done(struct tevent_req *subreq);
static struct tevent_req *
sdap_ad_tokengroups_initgr_posix_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct sdap_id_ctx *id_ctx,
struct sdap_id_conn_ctx *conn,
struct sdap_options *opts,
struct sysdb_ctx *sysdb,
struct sss_domain_info *domain,
struct sdap_handle *sh,
const char *name,
const char *orig_dn,
int timeout)
{
struct sdap_ad_tokengroups_initgr_posix_state *state = NULL;
struct tevent_req *req = NULL;
struct tevent_req *subreq = NULL;
struct sdap_domain *sdom;
struct ad_id_ctx *subdom_id_ctx;
errno_t ret;
req = tevent_req_create(mem_ctx, &state,
struct sdap_ad_tokengroups_initgr_posix_state);
if (req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("tevent_req_create() failed\n"));
return NULL;
}
state->ev = ev;
state->id_ctx = id_ctx;
state->conn = conn;
state->opts = opts;
state->sh = sh;
state->sysdb = sysdb;
state->domain = domain;
state->orig_dn = orig_dn;
state->timeout = timeout;
state->username = talloc_strdup(state, name);
if (state->username == NULL) {
ret = ENOMEM;
goto immediately;
}
sdom = sdap_domain_get(opts, domain);
if (sdom == NULL || sdom->pvt == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("No ID ctx available for [%s].\n",
domain->name));
ret = EINVAL;
goto immediately;
}
subdom_id_ctx = talloc_get_type(sdom->pvt, struct ad_id_ctx);
state->op = sdap_id_op_create(state, subdom_id_ctx->ldap_ctx->conn_cache);
if (!state->op) {
DEBUG(2, ("sdap_id_op_create failed\n"));
ret = ENOMEM;
goto immediately;
}
subreq = sdap_id_op_connect_send(state->op, state, &ret);
if (subreq == NULL) {
ret = ENOMEM;
goto immediately;
}
tevent_req_set_callback(subreq,
sdap_ad_tokengroups_initgr_posix_sids_connect_done,
req);
return req;
immediately:
if (ret == EOK) {
tevent_req_done(req);
} else {
tevent_req_error(req, ret);
}
tevent_req_post(req, ev);
return req;
}
static void
sdap_ad_tokengroups_initgr_posix_sids_connect_done(struct tevent_req *subreq)
{
struct sdap_ad_tokengroups_initgr_posix_state *state = NULL;
struct tevent_req *req = NULL;
int ret;
int dp_error = DP_ERR_FATAL;
req = tevent_req_callback_data(subreq, struct tevent_req);
state = tevent_req_data(req,
struct sdap_ad_tokengroups_initgr_posix_state);
ret = sdap_id_op_connect_recv(subreq, &dp_error);
talloc_zfree(subreq);
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
subreq = sdap_get_ad_tokengroups_send(state, state->ev, state->opts,
sdap_id_op_handle(state->op),
state->username, state->orig_dn,
state->timeout);
if (subreq == NULL) {
tevent_req_error(req, ENOMEM);
return;
}
tevent_req_set_callback(subreq, sdap_ad_tokengroups_initgr_posix_tg_done,
req);
return;
}
static void
sdap_ad_tokengroups_initgr_posix_tg_done(struct tevent_req *subreq)
{
TALLOC_CTX *tmp_ctx = NULL;
struct sdap_ad_tokengroups_initgr_posix_state *state = NULL;
struct tevent_req *req = NULL;
struct sss_domain_info *domain = NULL;
struct ldb_message *msg = NULL;
const char *attrs[] = {SYSDB_NAME, SYSDB_POSIX, NULL};
const char *is_posix = NULL;
const char *name = NULL;
char *sid = NULL;
char **sids = NULL;
size_t num_sids = 0;
char **valid_groups = NULL;
size_t num_valid_groups;
char **missing_sids = NULL;
size_t num_missing_sids;
size_t i;
errno_t ret;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_new() failed\n"));
ret = ENOMEM;
goto done;
}
req = tevent_req_callback_data(subreq, struct tevent_req);
state = tevent_req_data(req,
struct sdap_ad_tokengroups_initgr_posix_state);
ret = sdap_get_ad_tokengroups_recv(state, subreq, &num_sids, &sids);
talloc_zfree(subreq);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Unable to acquire tokengroups [%d]: %s\n",
ret, strerror(ret)));
goto done;
}
num_valid_groups = 0;
valid_groups = talloc_zero_array(tmp_ctx, char*, num_sids + 1);
if (valid_groups == NULL) {
ret = ENOMEM;
goto done;
}
num_missing_sids = 0;
missing_sids = talloc_zero_array(tmp_ctx, char*, num_sids + 1);
if (missing_sids == NULL) {
ret = ENOMEM;
goto done;
}
/* For each SID check if it is already present in the cache. If yes, we
* will get name of the group and update the membership. Otherwise we need
* to remember the SID and download missing groups one by one. */
for (i = 0; i < num_sids; i++) {
sid = sids[i];
DEBUG(SSSDBG_TRACE_LIBS, ("Processing membership SID [%s]\n", sid));
domain = find_subdomain_by_sid(get_domains_head(state->domain), sid);
if (domain == NULL) {
DEBUG(SSSDBG_MINOR_FAILURE, ("Domain not found for SID %s\n", sid));
continue;
}
ret = sysdb_search_group_by_sid_str(tmp_ctx, domain->sysdb, domain,
sid, attrs, &msg);
if (ret == EOK) {
is_posix = ldb_msg_find_attr_as_string(msg, SYSDB_POSIX, NULL);
if (is_posix != NULL && strcmp(is_posix, "FALSE") == 0) {
/* skip non-posix group */
continue;
}
/* we will update membership of this group */
name = ldb_msg_find_attr_as_string(msg, SYSDB_NAME, NULL);
if (name == NULL) {
DEBUG(SSSDBG_MINOR_FAILURE,
("Could not retrieve group name from sysdb\n"));
ret = EINVAL;
goto done;
}
valid_groups[num_valid_groups] = sysdb_group_strdn(tmp_ctx,
domain->name,
name);
if (valid_groups[num_valid_groups] == NULL) {
ret = ENOMEM;
goto done;
}
num_valid_groups++;
} else if (ret == ENOENT) {
/* we need to download this group */
missing_sids[num_missing_sids] = talloc_steal(missing_sids, sid);
num_missing_sids++;
DEBUG(SSSDBG_TRACE_FUNC, ("Missing SID %s will be downloaded\n",
sid));
} else {
DEBUG(SSSDBG_MINOR_FAILURE, ("Could not look up group in sysdb: "
"[%s]\n", strerror(ret)));
goto done;
}
}
valid_groups[num_valid_groups] = NULL;
missing_sids[num_missing_sids] = NULL;
/* update membership of existing groups */
ret = sdap_ad_tokengroups_update_members(state, state->username,
state->sysdb, state->domain,
valid_groups);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE, ("Membership update failed [%d]: %s\n",
ret, strerror(ret)));
goto done;
}
/* download missing SIDs */
missing_sids = talloc_steal(state, missing_sids);
subreq = sdap_ad_resolve_sids_send(state, state->ev, state->id_ctx,
state->conn,
state->opts, state->domain,
missing_sids);
if (subreq == NULL) {
ret = ENOMEM;
goto done;
}
tevent_req_set_callback(subreq, sdap_ad_tokengroups_initgr_posix_sids_done,
req);
return;
done:
talloc_free(tmp_ctx);
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
tevent_req_done(req);
}
static void
sdap_ad_tokengroups_initgr_posix_sids_done(struct tevent_req *subreq)
{
struct tevent_req *req = NULL;
errno_t ret;
req = tevent_req_callback_data(subreq, struct tevent_req);
ret = sdap_ad_resolve_sids_recv(subreq);
talloc_zfree(subreq);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Unable to resolve missing SIDs "
"[%d]: %s\n", ret, strerror(ret)));
goto done;
}
done:
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
tevent_req_done(req);
}
static errno_t sdap_ad_tokengroups_initgr_posix_recv(struct tevent_req *req)
{
TEVENT_REQ_RETURN_ON_ERROR(req);
return EOK;
}
struct sdap_ad_tokengroups_initgroups_state {
bool use_id_mapping;
struct sss_domain_info *domain;
};
static void sdap_ad_tokengroups_initgroups_done(struct tevent_req *subreq);
struct tevent_req *
sdap_ad_tokengroups_initgroups_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct sdap_id_ctx *id_ctx,
struct sdap_id_conn_ctx *conn,
struct sdap_options *opts,
struct sysdb_ctx *sysdb,
struct sss_domain_info *domain,
struct sdap_handle *sh,
const char *name,
const char *orig_dn,
int timeout,
bool use_id_mapping)
{
struct sdap_ad_tokengroups_initgroups_state *state = NULL;
struct tevent_req *req = NULL;
struct tevent_req *subreq = NULL;
errno_t ret;
req = tevent_req_create(mem_ctx, &state,
struct sdap_ad_tokengroups_initgroups_state);
if (req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("tevent_req_create() failed\n"));
return NULL;
}
state->use_id_mapping = use_id_mapping;
state->domain = domain;
if (state->use_id_mapping && !IS_SUBDOMAIN(state->domain)) {
subreq = sdap_ad_tokengroups_initgr_mapping_send(state, ev, opts,
sysdb, domain, sh,
name, orig_dn,
timeout);
} else {
subreq = sdap_ad_tokengroups_initgr_posix_send(state, ev, id_ctx, conn,
opts, sysdb, domain, sh,
name, orig_dn,
timeout);
}
if (subreq == NULL) {
ret = ENOMEM;
goto immediately;
}
tevent_req_set_callback(subreq, sdap_ad_tokengroups_initgroups_done, req);
return req;
immediately:
if (ret == EOK) {
tevent_req_done(req);
} else {
tevent_req_error(req, ret);
}
tevent_req_post(req, ev);
return req;
}
static void sdap_ad_tokengroups_initgroups_done(struct tevent_req *subreq)
{
struct sdap_ad_tokengroups_initgroups_state *state = NULL;
struct tevent_req *req = NULL;
errno_t ret;
req = tevent_req_callback_data(subreq, struct tevent_req);
state = tevent_req_data(req, struct sdap_ad_tokengroups_initgroups_state);
if (state->use_id_mapping && !IS_SUBDOMAIN(state->domain)) {
ret = sdap_ad_tokengroups_initgr_mapping_recv(subreq);
} else {
ret = sdap_ad_tokengroups_initgr_posix_recv(subreq);
}
talloc_zfree(subreq);
if (ret != EOK) {
goto done;
}
done:
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
tevent_req_done(req);
}
errno_t sdap_ad_tokengroups_initgroups_recv(struct tevent_req *req)
{
TEVENT_REQ_RETURN_ON_ERROR(req);
return EOK;
}
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