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-rw-r--r--nsswitch/libwbclient/wbc_async.h6
-rw-r--r--nsswitch/libwbclient/wbc_idmap.c101
2 files changed, 107 insertions, 0 deletions
diff --git a/nsswitch/libwbclient/wbc_async.h b/nsswitch/libwbclient/wbc_async.h
index 043b303632..eb8798ebc6 100644
--- a/nsswitch/libwbclient/wbc_async.h
+++ b/nsswitch/libwbclient/wbc_async.h
@@ -106,6 +106,12 @@ struct tevent_req *wbcUidToSid_send(TALLOC_CTX *mem_ctx,
uid_t uid);
wbcErr wbcUidToSid_recv(struct tevent_req *req, struct wbcDomainSid *psid);
+struct tevent_req *wbcSidToGid_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct wb_context *wb_ctx,
+ const struct wbcDomainSid *sid);
+wbcErr wbcSidToGid_recv(struct tevent_req *req, gid_t *pgid);
+
/* Async functions from wbc_util.c */
struct tevent_req *wbcPing_send(TALLOC_CTX *mem_ctx,
diff --git a/nsswitch/libwbclient/wbc_idmap.c b/nsswitch/libwbclient/wbc_idmap.c
index 353bd83665..03376782df 100644
--- a/nsswitch/libwbclient/wbc_idmap.c
+++ b/nsswitch/libwbclient/wbc_idmap.c
@@ -321,6 +321,106 @@ wbcErr wbcQueryUidToSid(uid_t uid,
return WBC_ERR_NOT_IMPLEMENTED;
}
+struct wbc_sid_to_gid_state {
+ struct winbindd_request req;
+ gid_t gid;
+};
+
+static void wbcSidToGid_done(struct tevent_req *subreq);
+
+/**
+ * @brief Request to convert a Windows SID to a Unix gid,
+ * allocating a gid if needed
+ *
+ * @param mem_ctx talloc context to allocate the request from
+ * @param ev tevent context to use for async operation
+ * @param wb_ctx winbind context to use
+ * @param *sid pointer to the domain SID to be resolved
+ *
+ * @return tevent_req on success, NULL on error
+ */
+
+struct tevent_req *wbcSidToGid_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct wb_context *wb_ctx,
+ const struct wbcDomainSid *sid)
+{
+ struct tevent_req *req, *subreq;
+ struct wbc_sid_to_gid_state *state;
+ char *sid_string;
+ wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
+
+ req = tevent_req_create(mem_ctx, &state, struct wbc_sid_to_gid_state);
+ if (req == NULL) {
+ return NULL;
+ }
+
+ ZERO_STRUCT(state->req);
+
+ state->req.cmd = WINBINDD_SID_TO_GID;
+ wbc_status = wbcSidToString(sid, &sid_string);
+ if (!WBC_ERROR_IS_OK(wbc_status)) {
+ return tevent_req_post(req, ev);
+ }
+ strncpy(state->req.data.sid, sid_string, sizeof(state->req.data.sid)-1);
+ wbcFreeMemory(sid_string);
+
+ subreq = wb_trans_send(state, ev, wb_ctx, false, &state->req);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ tevent_req_set_callback(subreq, wbcSidToGid_done, req);
+ return req;
+}
+
+static void wbcSidToGid_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct wbc_sid_to_gid_state *state = tevent_req_data(
+ req, struct wbc_sid_to_gid_state);
+ struct winbindd_response *resp;
+ wbcErr wbc_status;
+
+ wbc_status = wb_trans_recv(subreq, state, &resp);
+ TALLOC_FREE(subreq);
+ if (!WBC_ERROR_IS_OK(wbc_status)) {
+ tevent_req_error(req, wbc_status);
+ return;
+ }
+ state->gid = resp->data.gid;
+ TALLOC_FREE(resp);
+
+ tevent_req_done(req);
+}
+
+/**
+ * @brief Receive a Unix gid mapped to a Windows SID
+ *
+ * @param req tevent_req containing the request
+ * @param *pgid pointer to hold the resolved gid_t value
+ *
+ * @return #wbcErr
+ */
+
+wbcErr wbcSidToGid_recv(struct tevent_req *req, gid_t *pgid)
+{
+ struct wbc_sid_to_gid_state *state = tevent_req_data(
+ req, struct wbc_sid_to_gid_state);
+ wbcErr wbc_status;
+
+ if (tevent_req_is_wbcerr(req, &wbc_status)) {
+ tevent_req_received(req);
+ return wbc_status;
+ }
+
+ *pgid = state->gid;
+
+ tevent_req_received(req);
+ return WBC_ERR_SUCCESS;
+}
+
/** @brief Convert a Windows SID to a Unix gid, allocating a gid if needed
*
* @param *sid Pointer to the domain SID to be resolved
@@ -368,6 +468,7 @@ wbcErr wbcSidToGid(const struct wbcDomainSid *sid, gid_t *pgid)
return wbc_status;
}
+
/* Convert a Windows SID to a Unix gid if there already is a mapping */
wbcErr wbcQuerySidToGid(const struct wbcDomainSid *sid,