Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 182 insertions, 0 deletions

diff --git a/source3/winbindd/idmap_rid.c b/source3/winbindd/idmap_rid.c
new file mode 100644
index 0000000..4fecf22
--- /dev/null
+++ b/source3/winbindd/idmap_rid.c
@@ -0,0 +1,182 @@
+/*
+ *  idmap_rid: static map between Active Directory/NT RIDs and RFC 2307 accounts
+ *  Copyright (C) Guenther Deschner, 2004
+ *  Copyright (C) Sumit Bose, 2004
+ *
+ *  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 "idmap.h"
+#include "../libcli/security/dom_sid.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_IDMAP
+
+struct idmap_rid_context {
+	uint32_t base_rid;
+};
+
+/******************************************************************************
+  compat params can't be used because of the completely different way
+  we support multiple domains in the new idmap
+ *****************************************************************************/
+
+static NTSTATUS idmap_rid_initialize(struct idmap_domain *dom)
+{
+	struct idmap_rid_context *ctx;
+
+	ctx = talloc_zero(dom, struct idmap_rid_context);
+	if (ctx == NULL) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	ctx->base_rid = idmap_config_int(dom->name, "base_rid", 0);
+
+	dom->private_data = ctx;
+
+	return NT_STATUS_OK;
+}
+
+static NTSTATUS idmap_rid_id_to_sid(struct idmap_domain *dom, struct id_map *map)
+{
+	struct idmap_rid_context *ctx;
+
+	ctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
+
+	/* apply filters before checking */
+	if (!idmap_unix_id_is_in_range(map->xid.id, dom)) {
+		DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
+				map->xid.id, dom->low_id, dom->high_id));
+		return NT_STATUS_NONE_MAPPED;
+	}
+
+	if (is_null_sid(&dom->dom_sid)) {
+		DBG_INFO("idmap domain '%s' without SID\n", dom->name);
+		return NT_STATUS_NONE_MAPPED;
+	}
+
+	sid_compose(map->sid, &dom->dom_sid,
+		    map->xid.id - dom->low_id + ctx->base_rid);
+
+	map->status = ID_MAPPED;
+	map->xid.type = ID_TYPE_BOTH;
+
+	return NT_STATUS_OK;
+}
+
+/**********************************
+ Single sid to id lookup function.
+**********************************/
+
+static NTSTATUS idmap_rid_sid_to_id(struct idmap_domain *dom, struct id_map *map)
+{
+	uint32_t rid;
+	struct idmap_rid_context *ctx;
+
+	ctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
+
+	sid_peek_rid(map->sid, &rid);
+	map->xid.id = rid - ctx->base_rid + dom->low_id;
+	map->xid.type = ID_TYPE_BOTH;
+
+	/* apply filters before returning result */
+
+	if (!idmap_unix_id_is_in_range(map->xid.id, dom)) {
+		DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
+				map->xid.id, dom->low_id, dom->high_id));
+		map->status = ID_UNMAPPED;
+		return NT_STATUS_NONE_MAPPED;
+	}
+
+	map->status = ID_MAPPED;
+
+	return NT_STATUS_OK;
+}
+
+/**********************************
+ lookup a set of unix ids.
+**********************************/
+
+static NTSTATUS idmap_rid_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
+{
+	NTSTATUS ret;
+	int i;
+
+	/* initialize the status to avoid surprise */
+	for (i = 0; ids[i]; i++) {
+		ids[i]->status = ID_UNKNOWN;
+	}
+
+	for (i = 0; ids[i]; i++) {
+
+		ret = idmap_rid_id_to_sid(dom, ids[i]);
+
+		if (( ! NT_STATUS_IS_OK(ret)) &&
+		    ( ! NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED))) {
+			/* some fatal error occurred, log it */
+			DBG_NOTICE("Unexpected error resolving an ID "
+				   "(%d): %s\n", ids[i]->xid.id,
+				   nt_errstr(ret));
+		}
+	}
+
+	return NT_STATUS_OK;
+}
+
+/**********************************
+ lookup a set of sids.
+**********************************/
+
+static NTSTATUS idmap_rid_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
+{
+	NTSTATUS ret;
+	int i;
+
+	/* initialize the status to avoid surprise */
+	for (i = 0; ids[i]; i++) {
+		ids[i]->status = ID_UNKNOWN;
+	}
+
+	for (i = 0; ids[i]; i++) {
+
+		ret = idmap_rid_sid_to_id(dom, ids[i]);
+
+		if (( ! NT_STATUS_IS_OK(ret)) &&
+		    ( ! NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED))) {
+			struct dom_sid_buf buf;
+			/* some fatal error occurred, log it */
+			DEBUG(3, ("Unexpected error resolving a SID (%s)\n",
+				  dom_sid_str_buf(ids[i]->sid, &buf)));
+		}
+	}
+
+	return NT_STATUS_OK;
+}
+
+static const struct idmap_methods rid_methods = {
+	.init = idmap_rid_initialize,
+	.unixids_to_sids = idmap_rid_unixids_to_sids,
+	.sids_to_unixids = idmap_rid_sids_to_unixids,
+};
+
+static_decl_idmap;
+NTSTATUS idmap_rid_init(TALLOC_CTX *ctx)
+{
+	return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "rid", &rid_methods);
+}
+