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authorJakub Hrozek <jhrozek@redhat.com>2011-10-03 14:55:23 +0200
committerStephen Gallagher <sgallagh@redhat.com>2011-11-30 15:39:29 -0500
commitf46b9fd64ef09aae23220c5adb2fe4d3e4adc553 (patch)
treead2f64cad0764ea3071f3f288ad6d383f725c29f /src/providers
parent2a79515b1cc6cd4839e5b10628b2ddbb1674033f (diff)
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Use dereference during IPA provider initgroups
https://fedorahosted.org/sssd/ticket/1099
Diffstat (limited to 'src/providers')
-rw-r--r--src/providers/ldap/sdap_async_initgroups.c189
1 files changed, 149 insertions, 40 deletions
diff --git a/src/providers/ldap/sdap_async_initgroups.c b/src/providers/ldap/sdap_async_initgroups.c
index 08eff0f0..631ce152 100644
--- a/src/providers/ldap/sdap_async_initgroups.c
+++ b/src/providers/ldap/sdap_async_initgroups.c
@@ -629,12 +629,13 @@ struct sdap_initgr_nested_state {
struct sysdb_attrs *user;
const char *username;
+ const char *orig_dn;
const char **grp_attrs;
+ struct ldb_message_element *memberof;
char *filter;
char **group_dns;
- int count;
int cur;
struct sdap_op *op;
@@ -643,6 +644,8 @@ struct sdap_initgr_nested_state {
int groups_cur;
};
+static errno_t sdap_initgr_nested_deref_search(struct tevent_req *req);
+static errno_t sdap_initgr_nested_noderef_search(struct tevent_req *req);
static void sdap_initgr_nested_search(struct tevent_req *subreq);
static void sdap_initgr_nested_store(struct tevent_req *req);
static struct tevent_req *sdap_initgr_nested_send(TALLOC_CTX *memctx,
@@ -654,11 +657,10 @@ static struct tevent_req *sdap_initgr_nested_send(TALLOC_CTX *memctx,
struct sysdb_attrs *user,
const char **grp_attrs)
{
- struct tevent_req *req, *subreq;
+ struct tevent_req *req;
struct sdap_initgr_nested_state *state;
- struct ldb_message_element *el;
- int i;
errno_t ret;
+ int deref_threshold;
req = tevent_req_create(memctx, &state, struct sdap_initgr_nested_state);
if (!req) return NULL;
@@ -677,58 +679,85 @@ static struct tevent_req *sdap_initgr_nested_send(TALLOC_CTX *memctx,
&state->username);
if (ret != EOK) {
DEBUG(1, ("User entry had no username\n"));
- talloc_free(req);
- return NULL;
+ goto immediate;
}
- state->filter = talloc_asprintf(state, "(&(objectclass=%s)(%s=*))",
- opts->group_map[SDAP_OC_GROUP].name,
- opts->group_map[SDAP_AT_GROUP_NAME].name);
- if (!state->filter) {
- talloc_zfree(req);
- return NULL;
- }
-
- /* TODO: test rootDSE for deref support and use it if available */
- /* TODO: or test rootDSE for ASQ support and use it if available */
-
- ret = sysdb_attrs_get_el(user, SYSDB_MEMBEROF, &el);
- if (ret || !el || el->num_values == 0) {
+ ret = sysdb_attrs_get_el(state->user, SYSDB_MEMBEROF, &state->memberof);
+ if (ret || !state->memberof || state->memberof->num_values == 0) {
DEBUG(4, ("User entry lacks original memberof ?\n"));
/* We can't find any groups for this user, so we'll
* have to assume there aren't any. Just return
* success here.
*/
- tevent_req_done(req);
- tevent_req_post(req, ev);
- return req;
+ ret = EOK;
+ goto immediate;
}
- state->count = el->num_values;
state->groups = talloc_zero_array(state, struct sysdb_attrs *,
- state->count + 1);;
+ state->memberof->num_values + 1);;
if (!state->groups) {
- talloc_zfree(req);
- return NULL;
+ ret = ENOMEM;
+ goto immediate;
}
state->groups_cur = 0;
- state->group_dns = talloc_array(state, char *, state->count + 1);
+ deref_threshold = dp_opt_get_int(state->opts->basic,
+ SDAP_DEREF_THRESHOLD);
+ if (sdap_has_deref_support(state->sh, state->opts) &&
+ deref_threshold < state->memberof->num_values) {
+ ret = sysdb_attrs_get_string(user, SYSDB_ORIG_DN,
+ &state->orig_dn);
+ if (ret != EOK) goto immediate;
+
+ ret = sdap_initgr_nested_deref_search(req);
+ if (ret != EAGAIN) goto immediate;
+ } else {
+ ret = sdap_initgr_nested_noderef_search(req);
+ if (ret != EAGAIN) goto immediate;
+ }
+
+ return req;
+
+immediate:
+ if (ret == EOK) {
+ tevent_req_done(req);
+ } else {
+ tevent_req_error(req, ret);
+ }
+ tevent_req_post(req, ev);
+ return req;
+}
+
+static errno_t sdap_initgr_nested_noderef_search(struct tevent_req *req)
+{
+ int i;
+ struct tevent_req *subreq;
+ struct sdap_initgr_nested_state *state;
+
+ state = tevent_req_data(req, struct sdap_initgr_nested_state);
+
+ state->group_dns = talloc_array(state, char *,
+ state->memberof->num_values + 1);
if (!state->group_dns) {
- talloc_zfree(req);
- return NULL;
+ return ENOMEM;
}
- for (i = 0; i < state->count; i++) {
+ for (i = 0; i < state->memberof->num_values; i++) {
state->group_dns[i] = talloc_strdup(state->group_dns,
- (char *)el->values[i].data);
+ (char *)state->memberof->values[i].data);
if (!state->group_dns[i]) {
- talloc_zfree(req);
- return NULL;
+ return ENOMEM;
}
}
state->group_dns[i] = NULL; /* terminate */
state->cur = 0;
+ state->filter = talloc_asprintf(state, "(&(objectclass=%s)(%s=*))",
+ state->opts->group_map[SDAP_OC_GROUP].name,
+ state->opts->group_map[SDAP_AT_GROUP_NAME].name);
+ if (!state->filter) {
+ return ENOMEM;
+ }
+
subreq = sdap_get_generic_send(state, state->ev, state->opts, state->sh,
state->group_dns[state->cur],
LDAP_SCOPE_BASE,
@@ -737,12 +766,92 @@ static struct tevent_req *sdap_initgr_nested_send(TALLOC_CTX *memctx,
dp_opt_get_int(state->opts->basic,
SDAP_SEARCH_TIMEOUT));
if (!subreq) {
- talloc_zfree(req);
- return NULL;
+ return ENOMEM;
}
tevent_req_set_callback(subreq, sdap_initgr_nested_search, req);
- return req;
+ return EAGAIN;
+}
+
+static void sdap_initgr_nested_deref_done(struct tevent_req *subreq);
+
+static errno_t sdap_initgr_nested_deref_search(struct tevent_req *req)
+{
+ struct tevent_req *subreq;
+ struct sdap_attr_map_info *maps;
+ const int num_maps = 1;
+ const char **sdap_attrs;
+ errno_t ret;
+ int timeout;
+ struct sdap_initgr_nested_state *state;
+
+ state = tevent_req_data(req, struct sdap_initgr_nested_state);
+
+ maps = talloc_array(state, struct sdap_attr_map_info, num_maps+1);
+ if (!maps) return ENOMEM;
+
+ maps[0].map = state->opts->group_map;
+ maps[0].num_attrs = SDAP_OPTS_GROUP;
+ maps[1].map = NULL;
+
+ ret = build_attrs_from_map(state, state->opts->group_map,
+ SDAP_OPTS_GROUP, &sdap_attrs);
+ if (ret != EOK) goto fail;
+
+ timeout = dp_opt_get_int(state->opts->basic, SDAP_ENTRY_CACHE_TIMEOUT);
+
+ subreq = sdap_deref_search_send(state, state->ev, state->opts,
+ state->sh, state->orig_dn,
+ state->opts->user_map[SDAP_AT_USER_MEMBEROF].name,
+ sdap_attrs, num_maps, maps, timeout);
+ if (!subreq) {
+ ret = EIO;
+ goto fail;
+ }
+ talloc_steal(subreq, sdap_attrs);
+ talloc_steal(subreq, maps);
+
+ tevent_req_set_callback(subreq, sdap_initgr_nested_deref_done, req);
+ return EAGAIN;
+
+fail:
+ talloc_free(sdap_attrs);
+ talloc_free(maps);
+ return ret;
+}
+
+static void sdap_initgr_nested_deref_done(struct tevent_req *subreq)
+{
+ errno_t ret;
+ struct tevent_req *req;
+ struct sdap_initgr_nested_state *state;
+ size_t num_results;
+ size_t i;
+ struct sdap_deref_attrs **deref_result;
+
+ req = tevent_req_callback_data(subreq, struct tevent_req);
+ state = tevent_req_data(req, struct sdap_initgr_nested_state);
+
+ ret = sdap_deref_search_recv(subreq, state,
+ &num_results,
+ &deref_result);
+ talloc_zfree(subreq);
+ if (ret != EOK && ret != ENOENT) {
+ tevent_req_error(req, ret);
+ return;
+ } else if (ret == ENOENT || deref_result == NULL) {
+ /* Nothing could be dereferenced. Done. */
+ tevent_req_done(req);
+ return;
+ }
+
+ for (i=0; i < num_results; i++) {
+ state->groups[i] = talloc_steal(state->groups,
+ deref_result[i]->attrs);
+ }
+
+ state->groups_cur = num_results;
+ sdap_initgr_nested_store(req);
}
static void sdap_initgr_nested_search(struct tevent_req *subreq)
@@ -773,10 +882,10 @@ static void sdap_initgr_nested_search(struct tevent_req *subreq)
}
state->cur++;
- /* note that state->count is the count of original memberOf which might not
- * be only groups, but permissions, etc. Use state->groups_cur for
- * group index cap */
- if (state->cur < state->count) {
+ /* note that state->memberof->num_values is the count of original
+ * memberOf which might not be only groups, but permissions, etc.
+ * Use state->groups_cur for group index cap */
+ if (state->cur < state->memberof->num_values) {
subreq = sdap_get_generic_send(state, state->ev,
state->opts, state->sh,
state->group_dns[state->cur],