s3:winbind: Add async wb_next_grent

3 files changed, 193 insertions, 0 deletions

diff --git a/source3/winbindd/wb_next_grent.c b/source3/winbindd/wb_next_grent.c
new file mode 100644
index 0000000000..5f81bca718
--- /dev/null
+++ b/source3/winbindd/wb_next_grent.c
@@ -0,0 +1,177 @@
+/*
+   Unix SMB/CIFS implementation.
+   async next_grent
+   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_next_grent_state {
+	struct tevent_context *ev;
+	int max_nesting;
+	struct getgrent_state *gstate;
+	struct wbint_Principals next_groups;
+	struct winbindd_gr *gr;
+	struct talloc_dict *members;
+};
+
+static void wb_next_grent_fetch_done(struct tevent_req *subreq);
+static void wb_next_grent_getgrsid_done(struct tevent_req *subreq);
+
+struct tevent_req *wb_next_grent_send(TALLOC_CTX *mem_ctx,
+				      struct tevent_context *ev,
+				      int max_nesting,
+				      struct getgrent_state *gstate,
+				      struct winbindd_gr *gr)
+{
+	struct tevent_req *req, *subreq;
+	struct wb_next_grent_state *state;
+
+	req = tevent_req_create(mem_ctx, &state, struct wb_next_grent_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->ev = ev;
+	state->gstate = gstate;
+	state->gr = gr;
+
+	if (state->gstate->next_group >= state->gstate->num_groups) {
+		TALLOC_FREE(state->gstate->groups);
+
+		if (state->gstate->domain == NULL) {
+			state->gstate->domain = domain_list();
+		} else {
+			state->gstate->domain = state->gstate->domain->next;
+		}
+
+		if (state->gstate->domain == NULL) {
+			tevent_req_nterror(req, NT_STATUS_NO_MORE_ENTRIES);
+			return tevent_req_post(req, ev);
+		}
+		subreq = rpccli_wbint_QueryGroupList_send(
+			state, state->ev, state->gstate->domain->child.rpccli,
+			&state->next_groups);
+		if (tevent_req_nomem(subreq, req)) {
+			return tevent_req_post(req, ev);
+		}
+		tevent_req_set_callback(subreq, wb_next_grent_fetch_done, req);
+		return req;
+	}
+
+	subreq = wb_getgrsid_send(
+		state, state->ev,
+		&state->gstate->groups[state->gstate->next_group].sid,
+		state->max_nesting);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, wb_next_grent_getgrsid_done, req);
+	return req;
+}
+
+static void wb_next_grent_fetch_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_next_grent_state *state = tevent_req_data(
+		req, struct wb_next_grent_state);
+	NTSTATUS status, result;
+
+	status = rpccli_wbint_QueryGroupList_recv(subreq, state, &result);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status) || !NT_STATUS_IS_OK(result)) {
+		/* Ignore errors here, just log it */
+		DEBUG(10, ("query_user_list for domain %s returned %s/%s\n",
+			   state->gstate->domain->name,
+			   nt_errstr(status), nt_errstr(result)));
+		tevent_req_nterror(req, result);
+		return;
+	}
+
+	state->gstate->num_groups = state->next_groups.num_principals;
+	state->gstate->groups = talloc_move(
+		state->gstate, &state->next_groups.principals);
+
+	if (state->gstate->num_groups == 0) {
+		state->gstate->domain = state->gstate->domain->next;
+		if (state->gstate->domain == NULL) {
+			tevent_req_nterror(req, NT_STATUS_NO_MORE_ENTRIES);
+			return;
+		}
+		subreq = rpccli_wbint_QueryGroupList_send(
+			state, state->ev, state->gstate->domain->child.rpccli,
+			&state->next_groups);
+		if (tevent_req_nomem(subreq, req)) {
+			return;
+		}
+		tevent_req_set_callback(subreq, wb_next_grent_fetch_done, req);
+		return;
+	}
+
+	state->gstate->next_group = 0;
+
+	subreq = wb_getgrsid_send(
+		state, state->ev,
+		&state->gstate->groups[state->gstate->next_group].sid,
+		state->max_nesting);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, wb_next_grent_getgrsid_done, req);
+	return;
+}
+
+static void wb_next_grent_getgrsid_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_next_grent_state *state = tevent_req_data(
+		req, struct wb_next_grent_state);
+	const char *domname, *name;
+	NTSTATUS status;
+
+	status = wb_getgrsid_recv(subreq, talloc_tos(), &domname, &name,
+				  &state->gr->gr_gid, &state->members);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+	if (!fill_grent(talloc_tos(), state->gr, domname, name,
+			state->gr->gr_gid)) {
+		DEBUG(5, ("fill_grent failed\n"));
+		tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
+		return;
+	}
+	state->gstate->next_group += 1;
+	tevent_req_done(req);
+}
+
+NTSTATUS wb_next_grent_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+			    struct talloc_dict **members)
+{
+	struct wb_next_grent_state *state = tevent_req_data(
+		req, struct wb_next_grent_state);
+	NTSTATUS status;
+
+	if (tevent_req_is_nterror(req, &status)) {
+		return status;
+	}
+	*members = talloc_move(mem_ctx, &state->members);
+	return NT_STATUS_OK;
+}
diff --git a/source3/winbindd/winbindd.h b/source3/winbindd/winbindd.h
index d199481a22..b61017e513 100644
--- a/source3/winbindd/winbindd.h
+++ b/source3/winbindd/winbindd.h
@@ -68,6 +68,7 @@ struct winbindd_cli_state {
 	struct getent_state *getgrent_state;      /* State for getgrent() */
 
 	struct getpwent_state *pwent_state; /* State for getpwent() */
+	struct getgrent_state *grent_state; /* State for getgrent() */
 };
 
 /* State between get{pw,gr}ent() calls */
@@ -87,6 +88,13 @@ struct getpwent_state {
 	struct wbint_userinfo *users;
 };
 
+struct getgrent_state {
+	struct winbindd_domain *domain;
+	int next_group;
+	int num_groups;
+	struct wbint_Principal *groups;
+};
+
 /* Storage for cached getpwent() user entries */
 
 struct getpwent_user {
diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index bebfc9d9e4..689da8016d 100644
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -916,4 +916,12 @@ struct tevent_req *winbindd_getdcname_send(TALLOC_CTX *mem_ctx,
 NTSTATUS winbindd_getdcname_recv(struct tevent_req *req,
 				 struct winbindd_response *response);
 
+struct tevent_req *wb_next_grent_send(TALLOC_CTX *mem_ctx,
+				      struct tevent_context *ev,
+				      int max_nesting,
+				      struct getgrent_state *gstate,
+				      struct winbindd_gr *gr);
+NTSTATUS wb_next_grent_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+			    struct talloc_dict **members);
+
 #endif /*  _WINBINDD_PROTO_H_  */