s3: Convert WINBINDD_PAM_AUTH to the new async API

4 files changed, 134 insertions, 66 deletions

diff --git a/source3/winbindd/winbindd.c b/source3/winbindd/winbindd.c
index a7f3a600ca..d9335d08d5 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, winbindd_pam_auth, "PAM_AUTH" },
 	{ 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" },
@@ -552,6 +551,8 @@ static struct winbindd_async_dispatch_table async_nonpriv_table[] = {
 	  winbindd_check_machine_acct_send, winbindd_check_machine_acct_recv },
 	{ WINBINDD_PING_DC, "PING_DC",
 	  winbindd_ping_dc_send, winbindd_ping_dc_recv },
+	{ WINBINDD_PAM_AUTH, "PAM_AUTH",
+	  winbindd_pam_auth_send, winbindd_pam_auth_recv },
 
 	{ 0, NULL, NULL, NULL }
 };
diff --git a/source3/winbindd/winbindd_pam.c b/source3/winbindd/winbindd_pam.c
index 796bc3eaed..2e1bc204e6 100644
--- a/source3/winbindd/winbindd_pam.c
+++ b/source3/winbindd/winbindd_pam.c
@@ -795,70 +795,6 @@ static NTSTATUS append_auth_data(struct winbindd_cli_state *state,
 	return NT_STATUS_OK;
 }
 
-void winbindd_pam_auth(struct winbindd_cli_state *state)
-{
-	struct winbindd_domain *domain;
-	fstring name_domain, name_user, mapped_user;
-	char *mapped = NULL;
-	NTSTATUS result;
-	NTSTATUS name_map_status = NT_STATUS_UNSUCCESSFUL;
-
-	/* Ensure null termination */
-	state->request->data.auth.user
-		[sizeof(state->request->data.auth.user)-1]='\0';
-
-	/* Ensure null termination */
-	state->request->data.auth.pass
-		[sizeof(state->request->data.auth.pass)-1]='\0';
-
-	DEBUG(3, ("[%5lu]: pam auth %s\n", (unsigned long)state->pid,
-		  state->request->data.auth.user));
-
-	if (!check_request_flags(state->request->flags)) {
-		result = NT_STATUS_INVALID_PARAMETER_MIX;
-		goto done;
-	}
-
-	/* Parse domain and username */
-
-	name_map_status = normalize_name_unmap(state->mem_ctx,
-					       state->request->data.auth.user,
-					       &mapped);
-
-	/* If the name normalization didnt' actually do anything,
-	   just use the original name */
-
-	if (NT_STATUS_IS_OK(name_map_status)
-	    ||NT_STATUS_EQUAL(name_map_status, NT_STATUS_FILE_RENAMED)) {
-		fstrcpy(mapped_user, mapped);
-	} else {
-		fstrcpy(mapped_user, state->request->data.auth.user);
-	}
-
-	if (!canonicalize_username(mapped_user, name_domain, name_user)) {
-		result = NT_STATUS_NO_SUCH_USER;
-		goto done;
-	}
-
-	domain = find_auth_domain(state->request->flags, name_domain);
-
-	if (domain == NULL) {
-		result = NT_STATUS_NO_SUCH_USER;
-		goto done;
-	}
-
-	sendto_domain(state, domain);
-	return;
- done:
-	set_auth_errors(state->response, result);
-	DEBUG(5, ("Plain text authentication for %s returned %s "
-		  "(PAM: %d)\n",
-		  state->request->data.auth.user,
-		  state->response->data.auth.nt_status_string,
-		  state->response->data.auth.pam_error));
-	request_error(state);
-}
-
 static NTSTATUS winbindd_dual_pam_auth_cached(struct winbindd_domain *domain,
 					      struct winbindd_cli_state *state,
 					      struct netr_SamInfo3 **info3)
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);
+}
diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index d481380bb5..4daf0857f2 100644
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -382,7 +382,6 @@ void ndr_print_winbindd_domain(struct ndr_print *ndr,
 bool check_request_flags(uint32_t flags);
 struct winbindd_domain *find_auth_domain(uint8_t flags,
 					 const char *domain_name);
-void winbindd_pam_auth(struct winbindd_cli_state *state);
 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);
@@ -852,4 +851,11 @@ struct tevent_req *winbindd_set_hwm_send(TALLOC_CTX *mem_ctx,
 NTSTATUS winbindd_set_hwm_recv(struct tevent_req *req,
 			       struct winbindd_response *response);
 
+struct tevent_req *winbindd_pam_auth_send(TALLOC_CTX *mem_ctx,
+					  struct tevent_context *ev,
+					  struct winbindd_cli_state *cli,
+					  struct winbindd_request *request);
+NTSTATUS winbindd_pam_auth_recv(struct tevent_req *req,
+				struct winbindd_response *response);
+
 #endif /*  _WINBINDD_PROTO_H_  */