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authorVolker Lendecke <vl@samba.org>2010-04-01 16:44:16 +0200
committerVolker Lendecke <vl@samba.org>2010-04-19 14:27:20 +0200
commit45eeed2893e569483136c3f998eacb776d52e1ce (patch)
tree10c7ceb16cf273c5a329d3e70fd013d70ba9507d /source3/winbindd/winbindd_pam_logoff.c
parent518a4f5423bb360cf886aa1ce951f5323f4b12f9 (diff)
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s3: Convert WINBINDD_PAM_LOGOFF to the new async API
Diffstat (limited to 'source3/winbindd/winbindd_pam_logoff.c')
-rw-r--r--source3/winbindd/winbindd_pam_logoff.c139
1 files changed, 139 insertions, 0 deletions
diff --git a/source3/winbindd/winbindd_pam_logoff.c b/source3/winbindd/winbindd_pam_logoff.c
new file mode 100644
index 0000000000..9cf7f17d13
--- /dev/null
+++ b/source3/winbindd/winbindd_pam_logoff.c
@@ -0,0 +1,139 @@
+/*
+ Unix SMB/CIFS implementation.
+ async implementation of WINBINDD_PAM_LOGOFF
+ 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_logoff_state {
+ struct winbindd_response *response;
+};
+
+static void winbindd_pam_logoff_done(struct tevent_req *subreq);
+
+struct tevent_req *winbindd_pam_logoff_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_logoff_state *state;
+ struct winbindd_domain *domain;
+ fstring name_domain, user;
+ uid_t caller_uid;
+ int res;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct winbindd_pam_logoff_state);
+ if (req == NULL) {
+ return NULL;
+ }
+
+ /* Ensure null termination */
+ /* Ensure null termination */
+ request->data.logoff.user[sizeof(request->data.logoff.user)-1]='\0';
+ request->data.logoff.krb5ccname[
+ sizeof(request->data.logoff.krb5ccname)-1]='\0';
+
+ DEBUG(3, ("[%5lu]: pam auth %s\n", (unsigned long)cli->pid,
+ request->data.auth.user));
+
+ if (request->data.logoff.uid == (uid_t)-1) {
+ goto failed;
+ }
+
+ if (!canonicalize_username(request->data.logoff.user, name_domain,
+ user)) {
+ goto failed;
+ }
+
+ domain = find_auth_domain(request->flags, name_domain);
+ if (domain == NULL) {
+ goto failed;
+ }
+
+ caller_uid = (uid_t)-1;
+
+ res = sys_getpeereid(cli->sock, &caller_uid);
+ if (res != 0) {
+ DEBUG(1,("winbindd_pam_logoff: failed to check peerid: %s\n",
+ strerror(errno)));
+ goto failed;
+ }
+
+ switch (caller_uid) {
+ case -1:
+ goto failed;
+ case 0:
+ /* root must be able to logoff any user - gd */
+ break;
+ default:
+ if (caller_uid != request->data.logoff.uid) {
+ DEBUG(1,("winbindd_pam_logoff: caller requested "
+ "invalid uid\n"));
+ goto failed;
+ }
+ break;
+ }
+
+ 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_logoff_done, req);
+ return req;
+
+failed:
+ tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
+ return tevent_req_post(req, ev);
+}
+
+static void winbindd_pam_logoff_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct winbindd_pam_logoff_state *state = tevent_req_data(
+ req, struct winbindd_pam_logoff_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_logoff_recv(struct tevent_req *req,
+ struct winbindd_response *response)
+{
+ struct winbindd_pam_logoff_state *state = tevent_req_data(
+ req, struct winbindd_pam_logoff_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);
+}