s3: Add wbint_LookupSids

This will be called from wb_lookupsids to query remote DCs via lsa

Signed-off-by: Jeremy Allison <jra@samba.org>

4 files changed, 127 insertions, 0 deletions

diff --git a/source3/librpc/idl/wbint.idl b/source3/librpc/idl/wbint.idl
index 470fb8b7eb..ec37b381ff 100644
--- a/source3/librpc/idl/wbint.idl
+++ b/source3/librpc/idl/wbint.idl
@@ -23,6 +23,12 @@ interface wbint
 	[out,string,charset(UTF8)] char **name
 	);
 
+    NTSTATUS wbint_LookupSids(
+	[in] lsa_SidArray *sids,
+	[out,ref] lsa_RefDomainList *domains,
+	[out,ref] lsa_TransNameArray *names
+	);
+
     NTSTATUS wbint_LookupName(
 	[in,string,charset(UTF8)] char *domain,
 	[in,string,charset(UTF8)] char *name,
diff --git a/source3/winbindd/winbindd_dual_srv.c b/source3/winbindd/winbindd_dual_srv.c
index f5a5739fe8..e95dac234b 100644
--- a/source3/winbindd/winbindd_dual_srv.c
+++ b/source3/winbindd/winbindd_dual_srv.c
@@ -59,6 +59,24 @@ NTSTATUS _wbint_LookupSid(struct pipes_struct *p, struct wbint_LookupSid *r)
 	return NT_STATUS_OK;
 }
 
+NTSTATUS _wbint_LookupSids(struct pipes_struct *p, struct wbint_LookupSids *r)
+{
+	struct winbindd_domain *domain = wb_child_domain();
+
+	if (domain == NULL) {
+		return NT_STATUS_REQUEST_NOT_ACCEPTED;
+	}
+
+	/*
+	 * This breaks the winbindd_domain->methods abstraction: This
+	 * is only called for remote domains, and both winbindd_msrpc
+	 * and winbindd_ad call into lsa_lookupsids anyway. Caching is
+	 * done at the wbint RPC layer.
+	 */
+	return rpc_lookup_sids(p->mem_ctx, domain, r->in.sids,
+			       &r->out.domains, &r->out.names);
+}
+
 NTSTATUS _wbint_LookupName(struct pipes_struct *p, struct wbint_LookupName *r)
 {
 	struct winbindd_domain *domain = wb_child_domain();
diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index a5b4a64643..d1007f420b 100644
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -54,6 +54,11 @@ NTSTATUS winbindd_lookup_names(TALLOC_CTX *mem_ctx,
 			       const char ***domains,
 			       struct dom_sid **sids,
 			       enum lsa_SidType **types);
+NTSTATUS rpc_lookup_sids(TALLOC_CTX *mem_ctx,
+			 struct winbindd_domain *domain,
+			 struct lsa_SidArray *sids,
+			 struct lsa_RefDomainList **pdomains,
+			 struct lsa_TransNameArray **pnames);
 
 /* The following definitions come from winbindd/winbindd_cache.c  */
 
diff --git a/source3/winbindd/winbindd_rpc.c b/source3/winbindd/winbindd_rpc.c
index ed7d994ca9..82599e7878 100644
--- a/source3/winbindd/winbindd_rpc.c
+++ b/source3/winbindd/winbindd_rpc.c
@@ -1033,3 +1033,101 @@ NTSTATUS rpc_trusted_domains(TALLOC_CTX *mem_ctx,
 
 	return NT_STATUS_OK;
 }
+
+static NTSTATUS rpc_try_lookup_sids3(TALLOC_CTX *mem_ctx,
+				     struct winbindd_domain *domain,
+				     struct lsa_SidArray *sids,
+				     struct lsa_RefDomainList **pdomains,
+				     struct lsa_TransNameArray **pnames)
+{
+	struct lsa_TransNameArray2 lsa_names2;
+	struct lsa_TransNameArray *names;
+	uint32_t i, count;
+	struct rpc_pipe_client *cli;
+	NTSTATUS status, result;
+
+	status = cm_connect_lsa_tcp(domain, talloc_tos(), &cli);
+	if (!NT_STATUS_IS_OK(status)) {
+		domain->can_do_ncacn_ip_tcp = false;
+		return status;
+	}
+
+	ZERO_STRUCT(lsa_names2);
+	status = dcerpc_lsa_LookupSids3(cli->binding_handle,
+					mem_ctx,
+					sids,
+					pdomains,
+					&lsa_names2,
+					LSA_LOOKUP_NAMES_ALL,
+					&count,
+					LSA_LOOKUP_OPTION_SEARCH_ISOLATED_NAMES,
+					LSA_CLIENT_REVISION_2,
+					&result);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	if (NT_STATUS_IS_ERR(result)) {
+		return result;
+	}
+	names = TALLOC_ZERO_P(mem_ctx, struct lsa_TransNameArray);
+	if (names == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	names->count = lsa_names2.count;
+	names->names = talloc_array(names, struct lsa_TranslatedName,
+				    names->count);
+	if (names->names == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	for (i=0; i<names->count; i++) {
+		names->names[i].sid_type = lsa_names2.names[i].sid_type;
+		names->names[i].name.string = talloc_move(
+			names->names, &lsa_names2.names[i].name.string);
+		names->names[i].sid_index = lsa_names2.names[i].sid_index;
+	}
+	*pnames = names;
+	return result;
+}
+
+NTSTATUS rpc_lookup_sids(TALLOC_CTX *mem_ctx,
+			 struct winbindd_domain *domain,
+			 struct lsa_SidArray *sids,
+			 struct lsa_RefDomainList **pdomains,
+			 struct lsa_TransNameArray **pnames)
+{
+	struct lsa_TransNameArray *names;
+	struct rpc_pipe_client *cli = NULL;
+	struct policy_handle lsa_policy;
+	uint32_t count;
+	NTSTATUS status, result;
+
+	if (domain->can_do_ncacn_ip_tcp) {
+		status = rpc_try_lookup_sids3(mem_ctx, domain, sids,
+					      pdomains, pnames);
+		if (!NT_STATUS_IS_ERR(status)) {
+			return status;
+		}
+	}
+
+	status = cm_connect_lsa(domain, mem_ctx, &cli, &lsa_policy);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	names = TALLOC_ZERO_P(mem_ctx, struct lsa_TransNameArray);
+	if (names == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	status = dcerpc_lsa_LookupSids(cli->binding_handle, mem_ctx,
+				       &lsa_policy, sids, pdomains,
+				       names, LSA_LOOKUP_NAMES_ALL,
+				       &count, &result);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	if (NT_STATUS_IS_ERR(result)) {
+		return result;
+	}
+	*pnames = names;
+	return result;
+}