s3:winbind: Add wb_alias_members_{send/recv}

wb_alias_members.c is very similar to wb_lookupusergroups.c

Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

diff --git a/source3/winbindd/wb_alias_members.c b/source3/winbindd/wb_alias_members.c
new file mode 100644 (file)
index 0000000..06c2292
--- /dev/null
+++ b/source3/winbindd/wb_alias_members.c
@@ -0,0 +1,137 @@
+/*
+   Unix SMB/CIFS implementation.
+   async alias_members
+   Copyright (C) Pavel Filipenský 2023
+
+   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/ndr_winbind_c.h"
+#include "../libcli/security/security.h"
+
+struct wb_alias_members_state {
+       struct tevent_context *ev;
+       struct dom_sid sid;
+       struct wbint_SidArray sids;
+};
+
+static void wb_alias_members_done(struct tevent_req *subreq);
+
+struct tevent_req *wb_alias_members_send(TALLOC_CTX *mem_ctx,
+                                        struct tevent_context *ev,
+                                        const struct dom_sid *sid,
+                                        enum lsa_SidType type,
+                                        int max_nesting)
+{
+       struct tevent_req *req, *subreq;
+       struct wb_alias_members_state *state;
+       struct winbindd_domain *domain;
+       NTSTATUS status;
+       struct dom_sid_buf buf;
+
+       req = tevent_req_create(mem_ctx, &state, struct wb_alias_members_state);
+       if (req == NULL) {
+               return NULL;
+       }
+       D_INFO("WB command alias_members start.\nLooking up SID %s.\n",
+              dom_sid_str_buf(sid, &buf));
+
+       if (max_nesting <= 0) {
+               D_DEBUG("Finished. The depth based on 'winbind expand groups' is %d.\n", max_nesting);
+               state->sids.num_sids = 0;
+               state->sids.sids = NULL;
+               tevent_req_done(req);
+               return tevent_req_post(req, ev);
+       }
+
+       sid_copy(&state->sid, sid);
+
+       status = lookup_usergroups_cached(state,
+                                         &state->sid,
+                                         &state->sids.num_sids,
+                                         &state->sids.sids);
+       if (NT_STATUS_IS_OK(status)) {
+               tevent_req_done(req);
+               return tevent_req_post(req, ev);
+       }
+
+       domain = find_domain_from_sid_noinit(&state->sid);
+       if (domain == NULL) {
+               DBG_WARNING("could not find domain entry for sid %s\n",
+                           dom_sid_str_buf(&state->sid, &buf));
+               tevent_req_nterror(req, NT_STATUS_NO_SUCH_ALIAS);
+               return tevent_req_post(req, ev);
+       }
+
+       subreq = dcerpc_wbint_LookupAliasMembers_send(state,
+                                                     ev,
+                                                     dom_child_handle(domain),
+                                                     &state->sid,
+                                                     type,
+                                                     &state->sids);
+       if (tevent_req_nomem(subreq, req)) {
+               return tevent_req_post(req, ev);
+       }
+       tevent_req_set_callback(subreq, wb_alias_members_done, req);
+       return req;
+}
+
+static void wb_alias_members_done(struct tevent_req *subreq)
+{
+       struct tevent_req *req =
+               tevent_req_callback_data(subreq, struct tevent_req);
+       struct wb_alias_members_state *state =
+               tevent_req_data(req, struct wb_alias_members_state);
+       NTSTATUS status, result;
+
+       status = dcerpc_wbint_LookupAliasMembers_recv(subreq, state, &result);
+       TALLOC_FREE(subreq);
+       if (any_nt_status_not_ok(status, result, &status)) {
+               D_WARNING("Failed with %s.\n", nt_errstr(status));
+               tevent_req_nterror(req, status);
+               return;
+       }
+       tevent_req_done(req);
+}
+
+NTSTATUS wb_alias_members_recv(struct tevent_req *req,
+                              TALLOC_CTX *mem_ctx,
+                              uint32_t *num_sids,
+                              struct dom_sid **sids)
+{
+       struct wb_alias_members_state *state =
+               tevent_req_data(req, struct wb_alias_members_state);
+       NTSTATUS status;
+       uint32_t i;
+
+       if (tevent_req_is_nterror(req, &status)) {
+               return status;
+       }
+       *num_sids = state->sids.num_sids;
+       *sids = talloc_move(mem_ctx, &state->sids.sids);
+
+       D_INFO("WB command alias_members end.\nReceived %" PRIu32 " SID(s).\n",
+              *num_sids);
+       if (CHECK_DEBUGLVL(DBGLVL_INFO)) {
+               for (i = 0; i < *num_sids; i++) {
+                       struct dom_sid_buf buf;
+                       D_INFO("%" PRIu32 ": %s\n",
+                              i,
+                              dom_sid_str_buf(&(*sids)[i], &buf));
+               }
+       }
+       return NT_STATUS_OK;
+}

diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index ba54558e7ff4bc1a80bf7ab4ba3e46d20b2c60a2..8ebe19f0f9ee37e1faf2d796eb75a9a03986cc8c 100644 (file)
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -718,6 +718,17 @@ struct tevent_req *wb_group_members_send(TALLOC_CTX *mem_ctx,
                                         int max_depth);
 NTSTATUS wb_group_members_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
                               struct db_context **members);
+
+struct tevent_req *wb_alias_members_send(TALLOC_CTX *mem_ctx,
+                                        struct tevent_context *ev,
+                                        const struct dom_sid *sid,
+                                        enum lsa_SidType type,
+                                        int max_nesting);
+NTSTATUS wb_alias_members_recv(struct tevent_req *req,
+                              TALLOC_CTX *mem_ctx,
+                              uint32_t *num_sids,
+                              struct dom_sid **sids);
+
 NTSTATUS add_member_to_db(struct db_context *db, struct dom_sid *sid,
                          const char *name);
 

diff --git a/source3/winbindd/wscript_build b/source3/winbindd/wscript_build
index 904072bd3706016ad5ef325492d815026b5e80b1..4c85876b5adf88b5155021ba315fe41a13f85b04 100644 (file)
--- a/source3/winbindd/wscript_build
+++ b/source3/winbindd/wscript_build
@@ -211,6 +211,7 @@ bld.SAMBA3_SUBSYSTEM('winbindd-lib',
                     wb_seqnum.c
                     wb_seqnums.c
                     wb_group_members.c
+                    wb_alias_members.c
                     wb_getgrsid.c
                     wb_query_user_list.c
                     wb_query_group_list.c