libwbclient: Separate out the async functions

1 files changed, 284 insertions, 0 deletions

diff --git a/nsswitch/libwbclient/wbc_sid_async.c b/nsswitch/libwbclient/wbc_sid_async.c
new file mode 100644
index 0000000000..7e3bd75d82
--- /dev/null
+++ b/nsswitch/libwbclient/wbc_sid_async.c
@@ -0,0 +1,284 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Winbind client API
+
+   Copyright (C) 2009,2010 Kai Blin  <kai@samba.org>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* Required Headers */
+
+#include "replace.h"
+#include "libwbclient.h"
+#include "../winbind_client.h"
+
+struct wbc_lookup_name_state {
+	struct winbindd_request req;
+	struct wb_context *wb_ctx;
+	struct wbcDomainSid *sid;
+	enum wbcSidType name_type;
+};
+
+static void wbcLookupName_done(struct tevent_req *subreq);
+
+/**
+ * @brief Request a conversion of a domaind and name to a domain sid
+ *
+ * @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 *domain	Pointer to the domain to be resolved
+ * @param *name		Pointer to the name to be resolved
+ *
+ * @return tevent_req on success, NULL on error
+ **/
+
+struct tevent_req *wbcLookupName_send(TALLOC_CTX *mem_ctx,
+				      struct tevent_context *ev,
+				      struct wb_context *wb_ctx,
+				      const char *domain,
+				      const char *name)
+{
+	struct tevent_req *req, *subreq;
+	struct wbc_lookup_name_state *state;
+
+	req = tevent_req_create(mem_ctx, &state, struct wbc_lookup_name_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	ZERO_STRUCT(state->req);
+
+	state->req.cmd = WINBINDD_LOOKUPNAME;
+	strncpy(state->req.data.name.dom_name, domain,
+		sizeof(state->req.data.name.dom_name)-1);
+	strncpy(state->req.data.name.name, name,
+		sizeof(state->req.data.name.name)-1);
+	state->wb_ctx = wb_ctx;
+
+
+	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, wbcLookupName_done, req);
+	return req;
+}
+
+static void wbcLookupName_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+			subreq, struct tevent_req);
+	struct wbc_lookup_name_state *state = tevent_req_data(
+			req, struct wbc_lookup_name_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->sid = talloc(state, struct wbcDomainSid);
+	if (tevent_req_nomem(state->sid, req)) {
+		return;
+	}
+
+	wbc_status = wbcStringToSid(resp->data.sid.sid, state->sid);
+	if (!WBC_ERROR_IS_OK(wbc_status)) {
+		wbcDebug(state->wb_ctx, WBC_DEBUG_ERROR,
+			 "wbcStringToSid returned %s!\n",
+			 wbcErrorString(wbc_status));
+		tevent_req_error(req, wbc_status);
+		return;
+	}
+
+	state->name_type = (enum wbcSidType)resp->data.sid.type;
+
+	TALLOC_FREE(resp);
+
+	tevent_req_done(req);
+}
+
+/**
+ * @brief Receive a conversion a SID to a domain and name
+ *
+ * @param *
+ * @param *pname	Resolved User or group name
+ * @param *pname_type	Pointer to the resolved SID type
+ *
+ * @return #wbcErr
+ */
+
+wbcErr wbcLookupName_recv(struct tevent_req *req,
+			  struct wbcDomainSid *sid,
+			  enum wbcSidType *name_type)
+{
+	struct wbc_lookup_name_state *state = tevent_req_data(
+			req, struct wbc_lookup_name_state);
+	wbcErr wbc_status = WBC_ERR_SUCCESS;
+
+	if (!sid || !name_type) {
+		wbcDebug(state->wb_ctx, WBC_DEBUG_TRACE,
+		"Sid is %p, name_type is %p\n", sid, name_type);
+		wbc_status = WBC_ERR_INVALID_PARAM;
+		goto failed;
+	}
+
+	if (tevent_req_is_wbcerr(req, &wbc_status)) {
+		goto failed;
+	}
+
+	memcpy(sid, state->sid, sizeof(struct wbcDomainSid));
+	*name_type = state->name_type;
+
+failed:
+	tevent_req_received(req);
+	return wbc_status;
+}
+
+
+struct wbc_lookup_sid_state {
+	struct winbindd_request req;
+	char *domain;
+	char *name;
+	enum wbcSidType name_type;
+};
+
+static void wbcLookupSid_done(struct tevent_req *subreq);
+
+/**
+ * @brief Request a conversion of a SID to a domain and name
+ *
+ * @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 *wbcLookupSid_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_lookup_sid_state *state;
+	char *sid_string;
+	wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
+
+	req = tevent_req_create(mem_ctx, &state, struct wbc_lookup_sid_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	ZERO_STRUCT(state->req);
+
+	state->req.cmd = WINBINDD_LOOKUPSID;
+	wbc_status = wbcSidToString(sid, &sid_string);
+	if (!WBC_ERROR_IS_OK(wbc_status)) {
+		tevent_req_error(req, 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, wbcLookupSid_done, req);
+	return req;
+}
+
+static void wbcLookupSid_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+			subreq, struct tevent_req);
+	struct wbc_lookup_sid_state *state = tevent_req_data(
+			req, struct wbc_lookup_sid_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->domain = talloc_strdup(state, resp->data.name.dom_name);
+	if (tevent_req_nomem(state->domain, req)) {
+		return;
+	}
+
+	state->name   = talloc_strdup(state, resp->data.name.name);
+	if (tevent_req_nomem(state->name, req)) {
+		return;
+	}
+
+	state->name_type = (enum wbcSidType)resp->data.name.type;
+
+	TALLOC_FREE(resp);
+
+	tevent_req_done(req);
+}
+
+/**
+ * @brief Receive a conversion a SID to a domain and name
+ *
+ * @param *mem_ctx,	talloc context to move results to
+ * @param *pdomain	Resolved Domain name (possibly "")
+ * @param *pname	Resolved User or group name
+ * @param *pname_type	Pointer to the resolved SID type
+ *
+ * @return #wbcErr
+ */
+
+wbcErr wbcLookupSid_recv(struct tevent_req *req,
+			 TALLOC_CTX *mem_ctx,
+			 char **pdomain,
+			 char **pname,
+			 enum wbcSidType *pname_type)
+{
+	struct wbc_lookup_sid_state *state = tevent_req_data(
+			req, struct wbc_lookup_sid_state);
+	wbcErr wbc_status;
+
+	if (tevent_req_is_wbcerr(req, &wbc_status)) {
+		tevent_req_received(req);
+		return wbc_status;
+	}
+
+	if (pdomain != NULL) {
+		*pdomain = talloc_steal(mem_ctx, state->domain);
+	}
+
+	if (pname != NULL) {
+		*pname   = talloc_steal(mem_ctx, state->name);
+	}
+
+	if (pname_type != NULL) {
+		*pname_type = state->name_type;
+	}
+
+	tevent_req_received(req);
+	return WBC_ERR_SUCCESS;
+}