s3: Convert WINBINDD_PAM_AUTH to the new async API

1 files changed, 125 insertions, 0 deletions

diff --git a/source3/winbindd/winbindd_pam_auth.c b/source3/winbindd/winbindd_pam_auth.c
new file mode 100644
index 0000000000..b32d882827
--- /dev/null
+++ b/source3/winbindd/winbindd_pam_auth.c
@@ -0,0 +1,125 @@
+/*
+   Unix SMB/CIFS implementation.
+   async implementation of WINBINDD_PAM_AUTH
+   Copyright (C) Volker Lendecke 2010
+
+   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"
+
+struct winbindd_pam_auth_state {
+	struct winbindd_response *response;
+};
+
+static void winbindd_pam_auth_done(struct tevent_req *subreq);
+
+struct tevent_req *winbindd_pam_auth_send(TALLOC_CTX *mem_ctx,
+					  struct tevent_context *ev,
+					  struct winbindd_cli_state *cli,
+					  struct winbindd_request *request)
+{
+	struct tevent_req *req, *subreq;
+	struct winbindd_pam_auth_state *state;
+	struct winbindd_domain *domain;
+	fstring name_domain, name_user, mapped_user;
+	char *mapped = NULL;
+	NTSTATUS status;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct winbindd_pam_auth_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	/* Ensure null termination */
+	request->data.auth.user[sizeof(request->data.auth.user)-1] = '\0';
+	request->data.auth.pass[sizeof(request->data.auth.pass)-1] = '\0';
+
+	DEBUG(3, ("[%5lu]: pam auth %s\n", (unsigned long)cli->pid,
+		  request->data.auth.user));
+
+	if (!check_request_flags(request->flags)) {
+		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
+		return tevent_req_post(req, ev);
+	}
+
+	/* Parse domain and username */
+
+	status = normalize_name_unmap(state, request->data.auth.user, &mapped);
+
+	/* If the name normalization didnt' actually do anything,
+	   just use the original name */
+
+	if (NT_STATUS_IS_OK(status)
+	    || NT_STATUS_EQUAL(status, NT_STATUS_FILE_RENAMED)) {
+		fstrcpy(mapped_user, mapped);
+	} else {
+		fstrcpy(mapped_user, request->data.auth.user);
+	}
+
+	if (!canonicalize_username(mapped_user, name_domain, name_user)) {
+		tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
+		return tevent_req_post(req, ev);
+	}
+
+	domain = find_auth_domain(request->flags, name_domain);
+	if (domain == NULL) {
+		tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
+		return tevent_req_post(req, ev);
+	}
+
+	subreq = wb_domain_request_send(state, winbind_event_context(), domain,
+					request);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, winbindd_pam_auth_done, req);
+	return req;
+}
+
+static void winbindd_pam_auth_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct winbindd_pam_auth_state *state = tevent_req_data(
+		req, struct winbindd_pam_auth_state);
+	int res, err;
+
+	res = wb_domain_request_recv(subreq, state, &state->response, &err);
+	TALLOC_FREE(subreq);
+	if (res == -1) {
+		tevent_req_nterror(req, map_nt_error_from_unix(err));
+		return;
+	}
+	tevent_req_done(req);
+}
+
+NTSTATUS winbindd_pam_auth_recv(struct tevent_req *req,
+				struct winbindd_response *response)
+{
+	struct winbindd_pam_auth_state *state = tevent_req_data(
+		req, struct winbindd_pam_auth_state);
+	NTSTATUS status;
+
+	if (tevent_req_is_nterror(req, &status)) {
+		set_auth_errors(response, status);
+		return status;
+	}
+	*response = *state->response;
+	response->result = WINBINDD_PENDING;
+	state->response = talloc_move(response, &state->response);
+	return NT_STATUS(response->data.auth.nt_status);
+}