s3:winbind: Convert WINBINDD_GETGRNAM to the new API

1 files changed, 190 insertions, 0 deletions

diff --git a/source3/winbindd/winbindd_getgrnam.c b/source3/winbindd/winbindd_getgrnam.c
new file mode 100644
index 0000000000..85e60a2757
--- /dev/null
+++ b/source3/winbindd/winbindd_getgrnam.c
@@ -0,0 +1,190 @@
+/*
+   Unix SMB/CIFS implementation.
+   async implementation of WINBINDD_GETGRNAM
+   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"
+
+struct winbindd_getgrnam_state {
+	struct tevent_context *ev;
+	fstring name_domain, name_group;
+	struct dom_sid sid;
+	const char *domname;
+	const char *name;
+	gid_t gid;
+	struct talloc_dict *members;
+};
+
+static void winbindd_getgrnam_lookupsid_done(struct tevent_req *subreq);
+static void winbindd_getgrnam_done(struct tevent_req *subreq);
+
+struct tevent_req *winbindd_getgrnam_send(TALLOC_CTX *mem_ctx,
+					  struct tevent_context *ev,
+					  struct winbindd_request *request)
+{
+	struct tevent_req *req, *subreq;
+	struct winbindd_getgrnam_state *state;
+	struct winbindd_domain *domain;
+	char *tmp;
+	NTSTATUS nt_status;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct winbindd_getgrnam_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->ev = ev;
+
+	/* Ensure null termination */
+	request->data.groupname[sizeof(request->data.groupname)-1]='\0';
+
+	DEBUG(3, ("getgrnam %s\n", request->data.groupname));
+
+	nt_status = normalize_name_unmap(state, request->data.groupname, &tmp);
+	/* If we didn't map anything in the above call, just reset the
+	   tmp pointer to the original string */
+	if (!NT_STATUS_IS_OK(nt_status) &&
+	    !NT_STATUS_EQUAL(nt_status, NT_STATUS_FILE_RENAMED))
+	{
+		tmp = request->data.groupname;
+	}
+
+	/* Parse domain and groupname */
+
+	parse_domain_user(tmp, state->name_domain, state->name_group);
+
+	/* if no domain or our local domain and no local tdb group, default to
+	 * our local domain for aliases */
+
+	if ( !*(state->name_domain) || strequal(state->name_domain,
+						get_global_sam_name()) ) {
+		fstrcpy(state->name_domain, get_global_sam_name());
+	}
+
+	/* Get info for the domain */
+
+	domain = find_domain_from_name_noinit(state->name_domain);
+	if (domain == NULL) {
+		DEBUG(3, ("could not get domain sid for domain %s\n",
+			  state->name_domain));
+		tevent_req_nterror(req, NT_STATUS_NO_SUCH_GROUP);
+		return tevent_req_post(req, ev);
+	}
+
+	/* should we deal with users for our domain? */
+
+	if ( lp_winbind_trusted_domains_only() && domain->primary) {
+		DEBUG(7,("winbindd_getgrnam: My domain -- rejecting "
+			 "getgrnam() for %s\\%s.\n", state->name_domain,
+			 state->name_group));
+		tevent_req_nterror(req, NT_STATUS_NO_SUCH_GROUP);
+		return tevent_req_post(req, ev);
+	}
+
+	subreq = wb_lookupname_send(state, ev, domain->name, state->name_group,
+				    0);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, winbindd_getgrnam_lookupsid_done,
+				req);
+	return req;
+}
+
+static void winbindd_getgrnam_lookupsid_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct winbindd_getgrnam_state *state = tevent_req_data(
+		req, struct winbindd_getgrnam_state);
+	enum lsa_SidType type;
+	NTSTATUS status;
+
+	status = wb_lookupname_recv(subreq, &state->sid, &type);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+
+	if ( (type != SID_NAME_DOM_GRP) && (type != SID_NAME_ALIAS) ) {
+		DEBUG(5,("getgrnam_recv: not a group!\n"));
+		tevent_req_nterror(req, NT_STATUS_NO_SUCH_GROUP);
+		return;
+	}
+
+	subreq = wb_getgrsid_send(state, state->ev, &state->sid,
+				  lp_winbind_expand_groups());
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, winbindd_getgrnam_done, req);
+}
+
+static void winbindd_getgrnam_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct winbindd_getgrnam_state *state = tevent_req_data(
+		req, struct winbindd_getgrnam_state);
+	NTSTATUS status;
+
+	status = wb_getgrsid_recv(subreq, state, &state->domname, &state->name,
+				  &state->gid, &state->members);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+	tevent_req_done(req);
+}
+
+NTSTATUS winbindd_getgrnam_recv(struct tevent_req *req,
+				struct winbindd_response *response)
+{
+	struct winbindd_getgrnam_state *state = tevent_req_data(
+		req, struct winbindd_getgrnam_state);
+	NTSTATUS status;
+	int num_members;
+	char *buf;
+
+	if (tevent_req_is_nterror(req, &status)) {
+		DEBUG(5, ("Could not convert sid %s: %s\n",
+			  sid_string_dbg(&state->sid), nt_errstr(status)));
+		return status;
+	}
+
+	if (!fill_grent(talloc_tos(), &response->data.gr, state->domname,
+			state->name, state->gid)) {
+		DEBUG(5, ("fill_grent failed\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = winbindd_print_groupmembers(state->members, response,
+					     &num_members, &buf);
+
+	response->data.gr.num_gr_mem = (uint32)num_members;
+
+	/* Group membership lives at start of extra data */
+
+	response->data.gr.gr_mem_ofs = 0;
+	response->extra_data.data = buf;
+	response->length += talloc_get_size(response->extra_data.data);
+
+	return NT_STATUS_OK;
+}