1 files changed, 216 insertions, 0 deletions
diff --git a/source3/winbindd/winbindd_list_users.c b/source3/winbindd/winbindd_list_users.c
new file mode 100644
index 0000000..8630672
--- /dev/null
+++ b/source3/winbindd/winbindd_list_users.c
@@ -0,0 +1,216 @@
+/*
+   Unix SMB/CIFS implementation.
+   async implementation of WINBINDD_LIST_USERS
+   Copyright (C) Volker Lendecke 2009
+
+   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 "includes.h"
+#include "winbindd.h"
+#include "librpc/gen_ndr/ndr_winbind_c.h"
+#include "lib/util/strv.h"
+
+struct winbindd_list_users_domstate {
+	struct tevent_req *subreq;
+	struct winbindd_domain *domain;
+	char *users;
+};
+
+struct winbindd_list_users_state {
+        size_t num_received;
+	/* All domains */
+	size_t num_domains;
+	struct winbindd_list_users_domstate *domains;
+};
+
+static void winbindd_list_users_done(struct tevent_req *subreq);
+
+struct tevent_req *winbindd_list_users_send(TALLOC_CTX *mem_ctx,
+					    struct tevent_context *ev,
+					    struct winbindd_cli_state *cli,
+					    struct winbindd_request *request)
+{
+	struct tevent_req *req;
+	struct winbindd_list_users_state *state;
+	struct winbindd_domain *domain;
+	size_t i;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct winbindd_list_users_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	D_NOTICE("[%s (%u)] Winbind external command LIST_USERS start.\n"
+		 "WBFLAG_FROM_NSS is %s, winbind enum users is %d.\n",
+		 cli->client_name,
+		 (unsigned int)cli->pid,
+		 request->wb_flags & WBFLAG_FROM_NSS ? "Set" : "Unset",
+		 lp_winbind_enum_users());
+
+	if (request->wb_flags & WBFLAG_FROM_NSS && !lp_winbind_enum_users()) {
+		tevent_req_done(req);
+		return tevent_req_post(req, ev);
+	}
+
+	/* Ensure null termination */
+	request->domain_name[sizeof(request->domain_name)-1]='\0';
+
+	D_NOTICE("Listing users for domain %s\n", request->domain_name);
+	if (request->domain_name[0] != '\0') {
+		state->num_domains = 1;
+	} else {
+		state->num_domains = 0;
+		for (domain = domain_list(); domain; domain = domain->next) {
+			state->num_domains += 1;
+		}
+	}
+
+	state->domains = talloc_array(state,
+				      struct winbindd_list_users_domstate,
+				      state->num_domains);
+	if (tevent_req_nomem(state->domains, req)) {
+		return tevent_req_post(req, ev);
+	}
+
+	if (request->domain_name[0] != '\0') {
+		state->domains[0].domain = find_domain_from_name_noinit(
+			request->domain_name);
+		if (state->domains[0].domain == NULL) {
+			tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
+			return tevent_req_post(req, ev);
+		}
+	} else {
+		i = 0;
+		for (domain = domain_list(); domain; domain = domain->next) {
+			state->domains[i++].domain = domain;
+		}
+	}
+
+	for (i=0; i<state->num_domains; i++) {
+		struct winbindd_list_users_domstate *d = &state->domains[i];
+		/*
+		 * Use "state" as a talloc memory context since it has type
+		 * "struct tevent_req". This is needed to make tevent call depth
+		 * tracking working as expected.
+		 * After calling wb_query_user_list_send(), re-parent back to
+		 * "state->domains" to make TALLOC_FREE(state->domains) working.
+		 */
+		d->subreq = wb_query_user_list_send(state, ev, d->domain);
+		d->subreq = talloc_reparent(state, state->domains, d->subreq);
+		if (tevent_req_nomem(d->subreq, req)) {
+			TALLOC_FREE(state->domains);
+			return tevent_req_post(req, ev);
+		}
+		tevent_req_set_callback(d->subreq, winbindd_list_users_done,
+					req);
+	}
+	state->num_received = 0;
+	return req;
+}
+
+static void winbindd_list_users_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct winbindd_list_users_state *state = tevent_req_data(
+		req, struct winbindd_list_users_state);
+	struct winbindd_list_users_domstate *d;
+	NTSTATUS status;
+	size_t i;
+
+	for (i=0; i<state->num_domains; i++) {
+		if (subreq == state->domains[i].subreq) {
+			break;
+		}
+	}
+	if (i == state->num_domains) {
+		tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
+		return;
+	}
+
+	d = &state->domains[i];
+
+	status = wb_query_user_list_recv(subreq, state->domains,
+					 &d->users);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		/*
+		 * Just skip this domain
+		 */
+		d->users = NULL;
+	}
+
+	state->num_received += 1;
+
+	if (state->num_received >= state->num_domains) {
+		tevent_req_done(req);
+	}
+}
+
+NTSTATUS winbindd_list_users_recv(struct tevent_req *req,
+				  struct winbindd_response *response)
+{
+	struct winbindd_list_users_state *state = tevent_req_data(
+		req, struct winbindd_list_users_state);
+	NTSTATUS status;
+	char *result;
+	size_t i, len;
+
+	D_NOTICE("Winbind external command LIST_USERS end.\n");
+	if (tevent_req_is_nterror(req, &status)) {
+		D_WARNING("Failed with %s.\n", nt_errstr(status));
+		return status;
+	}
+
+	result = NULL;
+
+	for (i=0; i<state->num_domains; i++) {
+		struct winbindd_list_users_domstate *d = &state->domains[i];
+		int ret;
+
+		if (d->users == NULL) {
+			continue;
+		}
+
+		ret = strv_append(state, &result, d->users);
+		if (ret != 0) {
+			return map_nt_error_from_unix(ret);
+		}
+	}
+
+	len = talloc_get_size(result);
+
+	response->extra_data.data = talloc_steal(response, result);
+	response->length += len;
+	response->data.num_entries = 0;
+
+	if (result != NULL && len >= 1) {
+		len -= 1;
+		response->data.num_entries = 1;
+
+		for (i=0; i<len; i++) {
+			if (result[i] == '\0') {
+				result[i] = ',';
+				response->data.num_entries += 1;
+			}
+		}
+	}
+
+	D_NOTICE("Got %"PRIu32" user(s):\n%s\n",
+		 response->data.num_entries,
+		 result);
+
+	return NT_STATUS_OK;
+}