s3: Convert WINBINDD_PAM_AUTH_CRAP to the new async API

4 files changed, 132 insertions, 73 deletions

diff --git a/source3/winbindd/winbindd.c b/source3/winbindd/winbindd.c
index d9335d08d5..8b1dee2a0e 100644
--- a/source3/winbindd/winbindd.c
+++ b/source3/winbindd/winbindd.c
@@ -444,7 +444,6 @@ static struct winbindd_dispatch_table {
 
 	/* PAM auth functions */
 
-	{ WINBINDD_PAM_AUTH_CRAP, winbindd_pam_auth_crap, "AUTH_CRAP" },
 	{ WINBINDD_PAM_CHAUTHTOK, winbindd_pam_chauthtok, "CHAUTHTOK" },
 	{ WINBINDD_PAM_LOGOFF, winbindd_pam_logoff, "PAM_LOGOFF" },
 	{ WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, winbindd_pam_chng_pswd_auth_crap, "CHNG_PSWD_AUTH_CRAP" },
@@ -570,6 +569,8 @@ static struct winbindd_async_dispatch_table async_priv_table[] = {
 	  winbindd_set_hwm_send, winbindd_set_hwm_recv },
 	{ WINBINDD_CHANGE_MACHACC, "CHANGE_MACHACC",
 	  winbindd_change_machine_acct_send, winbindd_change_machine_acct_recv },
+	{ WINBINDD_PAM_AUTH_CRAP, "PAM_AUTH_CRAP",
+	  winbindd_pam_auth_crap_send, winbindd_pam_auth_crap_recv },
 
 	{ 0, NULL, NULL, NULL }
 };
diff --git a/source3/winbindd/winbindd_pam.c b/source3/winbindd/winbindd_pam.c
index 2e1bc204e6..140fa3c506 100644
--- a/source3/winbindd/winbindd_pam.c
+++ b/source3/winbindd/winbindd_pam.c
@@ -1694,77 +1694,6 @@ done:
 	return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 }
 
-
-/**********************************************************************
- Challenge Response Authentication Protocol
-**********************************************************************/
-
-void winbindd_pam_auth_crap(struct winbindd_cli_state *state)
-{
-	struct winbindd_domain *domain = NULL;
-	const char *domain_name = NULL;
-	NTSTATUS result;
-
-	if (!check_request_flags(state->request->flags)) {
-		result = NT_STATUS_INVALID_PARAMETER_MIX;
-		goto done;
-	}
-
-	if (!state->privileged) {
-		DEBUG(2, ("winbindd_pam_auth_crap: non-privileged access "
-			  "denied.  !\n"));
-		DEBUGADD(2, ("winbindd_pam_auth_crap: Ensure permissions "
-			     "on %s are set correctly.\n",
-			     get_winbind_priv_pipe_dir()));
-		/* send a better message than ACCESS_DENIED */
-		fstr_sprintf(state->response->data.auth.error_string,
-			     "winbind client not authorized to use "
-			     "winbindd_pam_auth_crap. Ensure permissions on "
-			     "%s are set correctly.",
-			     get_winbind_priv_pipe_dir());
-		result = NT_STATUS_ACCESS_DENIED;
-		goto done;
-	}
-
-	/* Ensure null termination */
-	state->request->data.auth_crap.user
-		[sizeof(state->request->data.auth_crap.user)-1]=0;
-	state->request->data.auth_crap.domain
-		[sizeof(state->request->data.auth_crap.domain)-1]=0;
-
-	DEBUG(3, ("[%5lu]: pam auth crap domain: [%s] user: %s\n",
-		  (unsigned long)state->pid,
-		  state->request->data.auth_crap.domain,
-		  state->request->data.auth_crap.user));
-
-	if (*state->request->data.auth_crap.domain != '\0') {
-		domain_name = state->request->data.auth_crap.domain;
-	} else if (lp_winbind_use_default_domain()) {
-		domain_name = lp_workgroup();
-	}
-
-	if (domain_name != NULL)
-		domain = find_auth_domain(state->request->flags, domain_name);
-
-	if (domain != NULL) {
-		sendto_domain(state, domain);
-		return;
-	}
-
-	result = NT_STATUS_NO_SUCH_USER;
-
- done:
-	set_auth_errors(state->response, result);
-	DEBUG(5, ("CRAP authentication for %s\\%s returned %s (PAM: %d)\n",
-		  state->request->data.auth_crap.domain,
-		  state->request->data.auth_crap.user,
-		  state->response->data.auth.nt_status_string,
-		  state->response->data.auth.pam_error));
-	request_error(state);
-	return;
-}
-
-
 enum winbindd_result winbindd_dual_pam_auth_crap(struct winbindd_domain *domain,
 						 struct winbindd_cli_state *state)
 {
diff --git a/source3/winbindd/winbindd_pam_auth_crap.c b/source3/winbindd/winbindd_pam_auth_crap.c
new file mode 100644
index 0000000000..dc2dc3e265
--- /dev/null
+++ b/source3/winbindd/winbindd_pam_auth_crap.c
@@ -0,0 +1,122 @@
+/*
+   Unix SMB/CIFS implementation.
+   async implementation of WINBINDD_PAM_AUTH_CRAP
+   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_crap_state {
+	struct winbindd_response *response;
+};
+
+static void winbindd_pam_auth_crap_done(struct tevent_req *subreq);
+
+struct tevent_req *winbindd_pam_auth_crap_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_crap_state *state;
+	struct winbindd_domain *domain;
+	const char *domain_name;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct winbindd_pam_auth_crap_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	/* Ensure null termination */
+	request->data.auth_crap.user[
+		sizeof(request->data.auth_crap.user)-1] = '\0';
+	request->data.auth_crap.domain[
+		sizeof(request->data.auth_crap.domain)-1] = '\0';
+
+	DEBUG(3, ("[%5lu]: pam auth crap domain: [%s] user: %s\n",
+		  (unsigned long)cli->pid,
+		  request->data.auth_crap.domain,
+		  request->data.auth_crap.user));
+
+	if (!check_request_flags(request->flags)) {
+		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
+		return tevent_req_post(req, ev);
+	}
+
+	domain_name = NULL;
+
+	if (request->data.auth_crap.domain[0] != '\0') {
+		domain_name = request->data.auth_crap.domain;
+	} else if (lp_winbind_use_default_domain()) {
+		domain_name = lp_workgroup();
+	}
+
+	domain = NULL;
+
+	if (domain_name != NULL) {
+		domain = find_auth_domain(request->flags, domain_name);
+	}
+
+	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_crap_done, req);
+	return req;
+}
+
+static void winbindd_pam_auth_crap_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct winbindd_pam_auth_crap_state *state = tevent_req_data(
+		req, struct winbindd_pam_auth_crap_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_crap_recv(struct tevent_req *req,
+				     struct winbindd_response *response)
+{
+	struct winbindd_pam_auth_crap_state *state = tevent_req_data(
+		req, struct winbindd_pam_auth_crap_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);
+}
diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index 4daf0857f2..4e88d88404 100644
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -384,7 +384,6 @@ struct winbindd_domain *find_auth_domain(uint8_t flags,
 					 const char *domain_name);
 enum winbindd_result winbindd_dual_pam_auth(struct winbindd_domain *domain,
 					    struct winbindd_cli_state *state) ;
-void winbindd_pam_auth_crap(struct winbindd_cli_state *state);
 enum winbindd_result winbindd_dual_pam_auth_crap(struct winbindd_domain *domain,
 						 struct winbindd_cli_state *state) ;
 void winbindd_pam_chauthtok(struct winbindd_cli_state *state);
@@ -858,4 +857,12 @@ struct tevent_req *winbindd_pam_auth_send(TALLOC_CTX *mem_ctx,
 NTSTATUS winbindd_pam_auth_recv(struct tevent_req *req,
 				struct winbindd_response *response);
 
+struct tevent_req *winbindd_pam_auth_crap_send(
+	TALLOC_CTX *mem_ctx,
+	struct tevent_context *ev,
+	struct winbindd_cli_state *cli,
+	struct winbindd_request *request);
+NTSTATUS winbindd_pam_auth_crap_recv(struct tevent_req *req,
+				     struct winbindd_response *response);
+
 #endif /*  _WINBINDD_PROTO_H_  */