s3:winbind: Add async wb_getpwsid

1 files changed, 223 insertions, 0 deletions

diff --git a/source3/winbindd/wb_getpwsid.c b/source3/winbindd/wb_getpwsid.c
new file mode 100644
index 0000000000..a823ba3953
--- /dev/null
+++ b/source3/winbindd/wb_getpwsid.c
@@ -0,0 +1,223 @@
+/*
+   Unix SMB/CIFS implementation.
+   async getpwsid
+   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/cli_wbint.h"
+
+struct wb_getpwsid_state {
+	struct winbindd_domain *user_domain;
+	struct tevent_context *ev;
+	struct dom_sid sid;
+	struct winbind_userinfo *userinfo;
+	struct winbindd_pw *pw;
+};
+
+static void wb_getpwsid_queryuser_done(struct tevent_req *subreq);
+static void wb_getpwsid_lookupsid_done(struct tevent_req *subreq);
+static void wb_getpwsid_sid2uid_done(struct tevent_req *subreq);
+static void wb_getpwsid_sid2gid_done(struct tevent_req *subreq);
+
+struct tevent_req *wb_getpwsid_send(TALLOC_CTX *mem_ctx,
+				    struct tevent_context *ev,
+				    const struct dom_sid *user_sid,
+				    struct winbindd_pw *pw)
+{
+	struct tevent_req *req, *subreq;
+	struct wb_getpwsid_state *state;
+
+	req = tevent_req_create(mem_ctx, &state, struct wb_getpwsid_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	sid_copy(&state->sid, user_sid);
+	state->ev = ev;
+	state->pw = pw;
+
+	state->user_domain = find_domain_from_sid_noinit(user_sid);
+	if (state->user_domain == NULL) {
+		tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
+		return tevent_req_post(req, ev);
+	}
+
+	subreq = wb_queryuser_send(state, ev, &state->sid);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, wb_getpwsid_queryuser_done, req);
+	return req;
+}
+
+static void wb_getpwsid_queryuser_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_getpwsid_state *state = tevent_req_data(
+		req, struct wb_getpwsid_state);
+	NTSTATUS status;
+
+	status = wb_queryuser_recv(subreq, state, &state->userinfo);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+
+	if ((state->userinfo->acct_name != NULL)
+	    && (state->userinfo->acct_name[0] != '\0')) {
+		/*
+		 * QueryUser got us a name, let's got directly to the
+		 * sid2uid step
+		 */
+		subreq = wb_sid2uid_send(state, state->ev,
+					 &state->userinfo->user_sid);
+		if (tevent_req_nomem(subreq, req)) {
+			return;
+		}
+		tevent_req_set_callback(subreq, wb_getpwsid_sid2uid_done, req);
+		return;
+	}
+
+	/*
+	 * QueryUser didn't get us a name, do it via LSA.
+	 */
+	subreq = wb_lookupsid_send(state, state->ev,
+				   &state->userinfo->user_sid);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, wb_getpwsid_lookupsid_done, req);
+}
+
+static void wb_getpwsid_lookupsid_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_getpwsid_state *state = tevent_req_data(
+		req, struct wb_getpwsid_state);
+	NTSTATUS status;
+	enum lsa_SidType type;
+	const char *domain;
+
+	status = wb_lookupsid_recv(subreq, state->userinfo, &type, &domain,
+				   &state->userinfo->acct_name);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+	subreq = wb_sid2uid_send(state, state->ev, &state->userinfo->user_sid);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, wb_getpwsid_sid2uid_done, req);
+}
+
+static void wb_getpwsid_sid2uid_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_getpwsid_state *state = tevent_req_data(
+		req, struct wb_getpwsid_state);
+	NTSTATUS status;
+
+	status = wb_sid2uid_recv(subreq, &state->pw->pw_uid);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+	subreq = wb_sid2gid_send(state, state->ev,
+				 &state->userinfo->group_sid);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, wb_getpwsid_sid2gid_done, req);
+}
+
+static void wb_getpwsid_sid2gid_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_getpwsid_state *state = tevent_req_data(
+		req, struct wb_getpwsid_state);
+	NTSTATUS status;
+	char *username;
+	char *mapped_name;
+
+	status = wb_sid2gid_recv(subreq, &state->pw->pw_gid);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+
+	username = talloc_strdup_lower(state, state->userinfo->acct_name);
+	if (tevent_req_nomem(username, req)) {
+		return;
+	}
+
+	status = normalize_name_map(state, state->user_domain, username,
+				    &mapped_name);
+
+	if (NT_STATUS_IS_OK(status)
+	    || NT_STATUS_EQUAL(status, NT_STATUS_FILE_RENAMED)) {
+		/*
+		 * normalize_name_map did something
+		 */
+		fstrcpy(state->pw->pw_name, mapped_name);
+		TALLOC_FREE(mapped_name);
+	} else {
+		fill_domain_username(state->pw->pw_name,
+				     state->user_domain->name,
+				     username, True);
+	}
+	fstrcpy(state->pw->pw_passwd, "*");
+	fstrcpy(state->pw->pw_gecos, state->userinfo->full_name);
+
+	if (!fillup_pw_field(lp_template_homedir(), state->pw->pw_name,
+			     state->user_domain->name, state->pw->pw_uid,
+			     state->pw->pw_gid, state->userinfo->homedir,
+			     state->pw->pw_dir)) {
+		DEBUG(5, ("Could not compose homedir\n"));
+		tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
+		return;
+	}
+
+	if (!fillup_pw_field(lp_template_homedir(), state->pw->pw_name,
+			     state->user_domain->name, state->pw->pw_uid,
+			     state->pw->pw_gid, state->userinfo->homedir,
+			     state->pw->pw_shell)) {
+		DEBUG(5, ("Could not compose shell\n"));
+		tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
+		return;
+	}
+
+	tevent_req_done(req);
+}
+
+NTSTATUS wb_getpwsid_recv(struct tevent_req *req)
+{
+	NTSTATUS status;
+
+	if (tevent_req_is_nterror(req, &status)) {
+		return status;
+	}
+	return NT_STATUS_OK;
+}