s3:winbind: Add async wb_lookupusergroups

12 files changed, 497 insertions, 2 deletions

diff --git a/source3/Makefile.in b/source3/Makefile.in
index 7879d939f8..974499594a 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -1160,6 +1160,7 @@ WINBINDD_OBJ1 = \
 		winbindd/wb_gid2sid.o \
 		winbindd/wb_queryuser.o \
 		winbindd/wb_lookupuseraliases.o \
+		winbindd/wb_lookupusergroups.o \
 		winbindd/wb_getpwsid.o \
 		winbindd/winbindd_lookupsid.o \
 		winbindd/winbindd_lookupname.o \
diff --git a/source3/librpc/gen_ndr/cli_wbint.c b/source3/librpc/gen_ndr/cli_wbint.c
index 30eb8e53d4..de6b345a0e 100644
--- a/source3/librpc/gen_ndr/cli_wbint.c
+++ b/source3/librpc/gen_ndr/cli_wbint.c
@@ -1484,3 +1484,164 @@ NTSTATUS rpccli_wbint_LookupUserAliases(struct rpc_pipe_client *cli,
 	return r.out.result;
 }
 
+struct rpccli_wbint_LookupUserGroups_state {
+	struct wbint_LookupUserGroups orig;
+	struct wbint_LookupUserGroups tmp;
+	TALLOC_CTX *out_mem_ctx;
+	NTSTATUS (*dispatch_recv)(struct tevent_req *req, TALLOC_CTX *mem_ctx);
+};
+
+static void rpccli_wbint_LookupUserGroups_done(struct tevent_req *subreq);
+
+struct tevent_req *rpccli_wbint_LookupUserGroups_send(TALLOC_CTX *mem_ctx,
+						      struct tevent_context *ev,
+						      struct rpc_pipe_client *cli,
+						      struct dom_sid *_sid /* [in] [ref] */,
+						      struct wbint_SidArray *_sids /* [out] [ref] */)
+{
+	struct tevent_req *req;
+	struct rpccli_wbint_LookupUserGroups_state *state;
+	struct tevent_req *subreq;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct rpccli_wbint_LookupUserGroups_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->out_mem_ctx = NULL;
+	state->dispatch_recv = cli->dispatch_recv;
+
+	/* In parameters */
+	state->orig.in.sid = _sid;
+
+	/* Out parameters */
+	state->orig.out.sids = _sids;
+
+	/* Result */
+	ZERO_STRUCT(state->orig.out.result);
+
+	if (DEBUGLEVEL >= 10) {
+		NDR_PRINT_IN_DEBUG(wbint_LookupUserGroups, &state->orig);
+	}
+
+	state->out_mem_ctx = talloc_named_const(state, 0,
+			     "rpccli_wbint_LookupUserGroups_out_memory");
+	if (tevent_req_nomem(state->out_mem_ctx, req)) {
+		return tevent_req_post(req, ev);
+	}
+
+	/* make a temporary copy, that we pass to the dispatch function */
+	state->tmp = state->orig;
+
+	subreq = cli->dispatch_send(state, ev, cli,
+				    &ndr_table_wbint,
+				    NDR_WBINT_LOOKUPUSERGROUPS,
+				    &state->tmp);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, rpccli_wbint_LookupUserGroups_done, req);
+	return req;
+}
+
+static void rpccli_wbint_LookupUserGroups_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct rpccli_wbint_LookupUserGroups_state *state = tevent_req_data(
+		req, struct rpccli_wbint_LookupUserGroups_state);
+	NTSTATUS status;
+	TALLOC_CTX *mem_ctx;
+
+	if (state->out_mem_ctx) {
+		mem_ctx = state->out_mem_ctx;
+	} else {
+		mem_ctx = state;
+	}
+
+	status = state->dispatch_recv(subreq, mem_ctx);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+
+	/* Copy out parameters */
+	*state->orig.out.sids = *state->tmp.out.sids;
+
+	/* Copy result */
+	state->orig.out.result = state->tmp.out.result;
+
+	/* Reset temporary structure */
+	ZERO_STRUCT(state->tmp);
+
+	if (DEBUGLEVEL >= 10) {
+		NDR_PRINT_OUT_DEBUG(wbint_LookupUserGroups, &state->orig);
+	}
+
+	tevent_req_done(req);
+}
+
+NTSTATUS rpccli_wbint_LookupUserGroups_recv(struct tevent_req *req,
+					    TALLOC_CTX *mem_ctx,
+					    NTSTATUS *result)
+{
+	struct rpccli_wbint_LookupUserGroups_state *state = tevent_req_data(
+		req, struct rpccli_wbint_LookupUserGroups_state);
+	NTSTATUS status;
+
+	if (tevent_req_is_nterror(req, &status)) {
+		tevent_req_received(req);
+		return status;
+	}
+
+	/* Steal possbile out parameters to the callers context */
+	talloc_steal(mem_ctx, state->out_mem_ctx);
+
+	/* Return result */
+	*result = state->orig.out.result;
+
+	tevent_req_received(req);
+	return NT_STATUS_OK;
+}
+
+NTSTATUS rpccli_wbint_LookupUserGroups(struct rpc_pipe_client *cli,
+				       TALLOC_CTX *mem_ctx,
+				       struct dom_sid *sid /* [in] [ref] */,
+				       struct wbint_SidArray *sids /* [out] [ref] */)
+{
+	struct wbint_LookupUserGroups r;
+	NTSTATUS status;
+
+	/* In parameters */
+	r.in.sid = sid;
+
+	if (DEBUGLEVEL >= 10) {
+		NDR_PRINT_IN_DEBUG(wbint_LookupUserGroups, &r);
+	}
+
+	status = cli->dispatch(cli,
+				mem_ctx,
+				&ndr_table_wbint,
+				NDR_WBINT_LOOKUPUSERGROUPS,
+				&r);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (DEBUGLEVEL >= 10) {
+		NDR_PRINT_OUT_DEBUG(wbint_LookupUserGroups, &r);
+	}
+
+	if (NT_STATUS_IS_ERR(status)) {
+		return status;
+	}
+
+	/* Return variables */
+	*sids = *r.out.sids;
+
+	/* Return result */
+	return r.out.result;
+}
+
diff --git a/source3/librpc/gen_ndr/cli_wbint.h b/source3/librpc/gen_ndr/cli_wbint.h
index 80f188f4f9..e9927c1c35 100644
--- a/source3/librpc/gen_ndr/cli_wbint.h
+++ b/source3/librpc/gen_ndr/cli_wbint.h
@@ -126,4 +126,16 @@ NTSTATUS rpccli_wbint_LookupUserAliases(struct rpc_pipe_client *cli,
 					TALLOC_CTX *mem_ctx,
 					struct wbint_SidArray *sids /* [in] [ref] */,
 					struct wbint_RidArray *rids /* [out] [ref] */);
+struct tevent_req *rpccli_wbint_LookupUserGroups_send(TALLOC_CTX *mem_ctx,
+						      struct tevent_context *ev,
+						      struct rpc_pipe_client *cli,
+						      struct dom_sid *_sid /* [in] [ref] */,
+						      struct wbint_SidArray *_sids /* [out] [ref] */);
+NTSTATUS rpccli_wbint_LookupUserGroups_recv(struct tevent_req *req,
+					    TALLOC_CTX *mem_ctx,
+					    NTSTATUS *result);
+NTSTATUS rpccli_wbint_LookupUserGroups(struct rpc_pipe_client *cli,
+				       TALLOC_CTX *mem_ctx,
+				       struct dom_sid *sid /* [in] [ref] */,
+				       struct wbint_SidArray *sids /* [out] [ref] */);
 #endif /* __CLI_WBINT__ */
diff --git a/source3/librpc/gen_ndr/ndr_wbint.c b/source3/librpc/gen_ndr/ndr_wbint.c
index 87e675edaf..5a8c1c33d7 100644
--- a/source3/librpc/gen_ndr/ndr_wbint.c
+++ b/source3/librpc/gen_ndr/ndr_wbint.c
@@ -1210,6 +1210,83 @@ _PUBLIC_ void ndr_print_wbint_LookupUserAliases(struct ndr_print *ndr, const cha
 	ndr->depth--;
 }
 
+static enum ndr_err_code ndr_push_wbint_LookupUserGroups(struct ndr_push *ndr, int flags, const struct wbint_LookupUserGroups *r)
+{
+	if (flags & NDR_IN) {
+		if (r->in.sid == NULL) {
+			return ndr_push_error(ndr, NDR_ERR_INVALID_POINTER, "NULL [ref] pointer");
+		}
+		NDR_CHECK(ndr_push_dom_sid(ndr, NDR_SCALARS, r->in.sid));
+	}
+	if (flags & NDR_OUT) {
+		if (r->out.sids == NULL) {
+			return ndr_push_error(ndr, NDR_ERR_INVALID_POINTER, "NULL [ref] pointer");
+		}
+		NDR_CHECK(ndr_push_wbint_SidArray(ndr, NDR_SCALARS, r->out.sids));
+		NDR_CHECK(ndr_push_NTSTATUS(ndr, NDR_SCALARS, r->out.result));
+	}
+	return NDR_ERR_SUCCESS;
+}
+
+static enum ndr_err_code ndr_pull_wbint_LookupUserGroups(struct ndr_pull *ndr, int flags, struct wbint_LookupUserGroups *r)
+{
+	TALLOC_CTX *_mem_save_sid_0;
+	TALLOC_CTX *_mem_save_sids_0;
+	if (flags & NDR_IN) {
+		ZERO_STRUCT(r->out);
+
+		if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {
+			NDR_PULL_ALLOC(ndr, r->in.sid);
+		}
+		_mem_save_sid_0 = NDR_PULL_GET_MEM_CTX(ndr);
+		NDR_PULL_SET_MEM_CTX(ndr, r->in.sid, LIBNDR_FLAG_REF_ALLOC);
+		NDR_CHECK(ndr_pull_dom_sid(ndr, NDR_SCALARS, r->in.sid));
+		NDR_PULL_SET_MEM_CTX(ndr, _mem_save_sid_0, LIBNDR_FLAG_REF_ALLOC);
+		NDR_PULL_ALLOC(ndr, r->out.sids);
+		ZERO_STRUCTP(r->out.sids);
+	}
+	if (flags & NDR_OUT) {
+		if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {
+			NDR_PULL_ALLOC(ndr, r->out.sids);
+		}
+		_mem_save_sids_0 = NDR_PULL_GET_MEM_CTX(ndr);
+		NDR_PULL_SET_MEM_CTX(ndr, r->out.sids, LIBNDR_FLAG_REF_ALLOC);
+		NDR_CHECK(ndr_pull_wbint_SidArray(ndr, NDR_SCALARS, r->out.sids));
+		NDR_PULL_SET_MEM_CTX(ndr, _mem_save_sids_0, LIBNDR_FLAG_REF_ALLOC);
+		NDR_CHECK(ndr_pull_NTSTATUS(ndr, NDR_SCALARS, &r->out.result));
+	}
+	return NDR_ERR_SUCCESS;
+}
+
+_PUBLIC_ void ndr_print_wbint_LookupUserGroups(struct ndr_print *ndr, const char *name, int flags, const struct wbint_LookupUserGroups *r)
+{
+	ndr_print_struct(ndr, name, "wbint_LookupUserGroups");
+	ndr->depth++;
+	if (flags & NDR_SET_VALUES) {
+		ndr->flags |= LIBNDR_PRINT_SET_VALUES;
+	}
+	if (flags & NDR_IN) {
+		ndr_print_struct(ndr, "in", "wbint_LookupUserGroups");
+		ndr->depth++;
+		ndr_print_ptr(ndr, "sid", r->in.sid);
+		ndr->depth++;
+		ndr_print_dom_sid(ndr, "sid", r->in.sid);
+		ndr->depth--;
+		ndr->depth--;
+	}
+	if (flags & NDR_OUT) {
+		ndr_print_struct(ndr, "out", "wbint_LookupUserGroups");
+		ndr->depth++;
+		ndr_print_ptr(ndr, "sids", r->out.sids);
+		ndr->depth++;
+		ndr_print_wbint_SidArray(ndr, "sids", r->out.sids);
+		ndr->depth--;
+		ndr_print_NTSTATUS(ndr, "result", r->out.result);
+		ndr->depth--;
+	}
+	ndr->depth--;
+}
+
 static const struct ndr_interface_call wbint_calls[] = {
 	{
 		"wbint_Ping",
@@ -1283,6 +1360,14 @@ static const struct ndr_interface_call wbint_calls[] = {
 		(ndr_print_function_t) ndr_print_wbint_LookupUserAliases,
 		false,
 	},
+	{
+		"wbint_LookupUserGroups",
+		sizeof(struct wbint_LookupUserGroups),
+		(ndr_push_flags_fn_t) ndr_push_wbint_LookupUserGroups,
+		(ndr_pull_flags_fn_t) ndr_pull_wbint_LookupUserGroups,
+		(ndr_print_function_t) ndr_print_wbint_LookupUserGroups,
+		false,
+	},
 	{ NULL, 0, NULL, NULL, NULL, false }
 };
 
@@ -1312,7 +1397,7 @@ const struct ndr_interface_table ndr_table_wbint = {
 		NDR_WBINT_VERSION
 	},
 	.helpstring	= NDR_WBINT_HELPSTRING,
-	.num_calls	= 9,
+	.num_calls	= 10,
 	.calls		= wbint_calls,
 	.endpoints	= &wbint_endpoints,
 	.authservices	= &wbint_authservices
diff --git a/source3/librpc/gen_ndr/ndr_wbint.h b/source3/librpc/gen_ndr/ndr_wbint.h
index f862fae651..6fd6b1d74d 100644
--- a/source3/librpc/gen_ndr/ndr_wbint.h
+++ b/source3/librpc/gen_ndr/ndr_wbint.h
@@ -29,7 +29,9 @@ extern const struct ndr_interface_table ndr_table_wbint;
 
 #define NDR_WBINT_LOOKUPUSERALIASES (0x08)
 
-#define NDR_WBINT_CALL_COUNT (9)
+#define NDR_WBINT_LOOKUPUSERGROUPS (0x09)
+
+#define NDR_WBINT_CALL_COUNT (10)
 enum ndr_err_code ndr_push_wbint_userinfo(struct ndr_push *ndr, int ndr_flags, const struct wbint_userinfo *r);
 enum ndr_err_code ndr_pull_wbint_userinfo(struct ndr_pull *ndr, int ndr_flags, struct wbint_userinfo *r);
 void ndr_print_wbint_userinfo(struct ndr_print *ndr, const char *name, const struct wbint_userinfo *r);
@@ -48,4 +50,5 @@ void ndr_print_wbint_Uid2Sid(struct ndr_print *ndr, const char *name, int flags,
 void ndr_print_wbint_Gid2Sid(struct ndr_print *ndr, const char *name, int flags, const struct wbint_Gid2Sid *r);
 void ndr_print_wbint_QueryUser(struct ndr_print *ndr, const char *name, int flags, const struct wbint_QueryUser *r);
 void ndr_print_wbint_LookupUserAliases(struct ndr_print *ndr, const char *name, int flags, const struct wbint_LookupUserAliases *r);
+void ndr_print_wbint_LookupUserGroups(struct ndr_print *ndr, const char *name, int flags, const struct wbint_LookupUserGroups *r);
 #endif /* _HEADER_NDR_wbint */
diff --git a/source3/librpc/gen_ndr/srv_wbint.c b/source3/librpc/gen_ndr/srv_wbint.c
index 19d2d2eabf..95c0619058 100644
--- a/source3/librpc/gen_ndr/srv_wbint.c
+++ b/source3/librpc/gen_ndr/srv_wbint.c
@@ -744,6 +744,86 @@ static bool api_wbint_LookupUserAliases(pipes_struct *p)
 	return true;
 }
 
+static bool api_wbint_LookupUserGroups(pipes_struct *p)
+{
+	const struct ndr_interface_call *call;
+	struct ndr_pull *pull;
+	struct ndr_push *push;
+	enum ndr_err_code ndr_err;
+	DATA_BLOB blob;
+	struct wbint_LookupUserGroups *r;
+
+	call = &ndr_table_wbint.calls[NDR_WBINT_LOOKUPUSERGROUPS];
+
+	r = talloc(talloc_tos(), struct wbint_LookupUserGroups);
+	if (r == NULL) {
+		return false;
+	}
+
+	if (!prs_data_blob(&p->in_data.data, &blob, r)) {
+		talloc_free(r);
+		return false;
+	}
+
+	pull = ndr_pull_init_blob(&blob, r, NULL);
+	if (pull == NULL) {
+		talloc_free(r);
+		return false;
+	}
+
+	pull->flags |= LIBNDR_FLAG_REF_ALLOC;
+	ndr_err = call->ndr_pull(pull, NDR_IN, r);
+	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+		talloc_free(r);
+		return false;
+	}
+
+	if (DEBUGLEVEL >= 10) {
+		NDR_PRINT_IN_DEBUG(wbint_LookupUserGroups, r);
+	}
+
+	ZERO_STRUCT(r->out);
+	r->out.sids = talloc_zero(r, struct wbint_SidArray);
+	if (r->out.sids == NULL) {
+		talloc_free(r);
+		return false;
+	}
+
+	r->out.result = _wbint_LookupUserGroups(p, r);
+
+	if (p->rng_fault_state) {
+		talloc_free(r);
+		/* Return true here, srv_pipe_hnd.c will take care */
+		return true;
+	}
+
+	if (DEBUGLEVEL >= 10) {
+		NDR_PRINT_OUT_DEBUG(wbint_LookupUserGroups, r);
+	}
+
+	push = ndr_push_init_ctx(r, NULL);
+	if (push == NULL) {
+		talloc_free(r);
+		return false;
+	}
+
+	ndr_err = call->ndr_push(push, NDR_OUT, r);
+	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+		talloc_free(r);
+		return false;
+	}
+
+	blob = ndr_push_blob(push);
+	if (!prs_copy_data_in(&p->out_data.rdata, (const char *)blob.data, (uint32_t)blob.length)) {
+		talloc_free(r);
+		return false;
+	}
+
+	talloc_free(r);
+
+	return true;
+}
+
 
 /* Tables */
 static struct api_struct api_wbint_cmds[] =
@@ -757,6 +837,7 @@ static struct api_struct api_wbint_cmds[] =
 	{"WBINT_GID2SID", NDR_WBINT_GID2SID, api_wbint_Gid2Sid},
 	{"WBINT_QUERYUSER", NDR_WBINT_QUERYUSER, api_wbint_QueryUser},
 	{"WBINT_LOOKUPUSERALIASES", NDR_WBINT_LOOKUPUSERALIASES, api_wbint_LookupUserAliases},
+	{"WBINT_LOOKUPUSERGROUPS", NDR_WBINT_LOOKUPUSERGROUPS, api_wbint_LookupUserGroups},
 };
 
 void wbint_get_pipe_fns(struct api_struct **fns, int *n_fns)
@@ -896,6 +977,18 @@ NTSTATUS rpc_wbint_dispatch(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, co
 			return NT_STATUS_OK;
 		}
 
+		case NDR_WBINT_LOOKUPUSERGROUPS: {
+			struct wbint_LookupUserGroups *r = (struct wbint_LookupUserGroups *)_r;
+			ZERO_STRUCT(r->out);
+			r->out.sids = talloc_zero(mem_ctx, struct wbint_SidArray);
+			if (r->out.sids == NULL) {
+			return NT_STATUS_NO_MEMORY;
+			}
+
+			r->out.result = _wbint_LookupUserGroups(cli->pipes_struct, r);
+			return NT_STATUS_OK;
+		}
+
 		default:
 			return NT_STATUS_NOT_IMPLEMENTED;
 	}
diff --git a/source3/librpc/gen_ndr/srv_wbint.h b/source3/librpc/gen_ndr/srv_wbint.h
index af48fa3320..20ca316375 100644
--- a/source3/librpc/gen_ndr/srv_wbint.h
+++ b/source3/librpc/gen_ndr/srv_wbint.h
@@ -10,6 +10,7 @@ NTSTATUS _wbint_Uid2Sid(pipes_struct *p, struct wbint_Uid2Sid *r);
 NTSTATUS _wbint_Gid2Sid(pipes_struct *p, struct wbint_Gid2Sid *r);
 NTSTATUS _wbint_QueryUser(pipes_struct *p, struct wbint_QueryUser *r);
 NTSTATUS _wbint_LookupUserAliases(pipes_struct *p, struct wbint_LookupUserAliases *r);
+NTSTATUS _wbint_LookupUserGroups(pipes_struct *p, struct wbint_LookupUserGroups *r);
 void wbint_get_pipe_fns(struct api_struct **fns, int *n_fns);
 NTSTATUS rpc_wbint_dispatch(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, const struct ndr_interface_table *table, uint32_t opnum, void *r);
 void _wbint_Ping(pipes_struct *p, struct wbint_Ping *r);
@@ -21,5 +22,6 @@ NTSTATUS _wbint_Uid2Sid(pipes_struct *p, struct wbint_Uid2Sid *r);
 NTSTATUS _wbint_Gid2Sid(pipes_struct *p, struct wbint_Gid2Sid *r);
 NTSTATUS _wbint_QueryUser(pipes_struct *p, struct wbint_QueryUser *r);
 NTSTATUS _wbint_LookupUserAliases(pipes_struct *p, struct wbint_LookupUserAliases *r);
+NTSTATUS _wbint_LookupUserGroups(pipes_struct *p, struct wbint_LookupUserGroups *r);
 NTSTATUS rpc_wbint_init(void);
 #endif /* __SRV_WBINT__ */
diff --git a/source3/librpc/gen_ndr/wbint.h b/source3/librpc/gen_ndr/wbint.h
index 6eeef0ebdf..28382ec346 100644
--- a/source3/librpc/gen_ndr/wbint.h
+++ b/source3/librpc/gen_ndr/wbint.h
@@ -153,4 +153,17 @@ struct wbint_LookupUserAliases {
 
 };
 
+
+struct wbint_LookupUserGroups {
+	struct {
+		struct dom_sid *sid;/* [ref] */
+	} in;
+
+	struct {
+		struct wbint_SidArray *sids;/* [ref] */
+		NTSTATUS result;
+	} out;
+
+};
+
 #endif /* _HEADER_wbint */
diff --git a/source3/librpc/idl/wbint.idl b/source3/librpc/idl/wbint.idl
index 571c212ecd..f994126711 100644
--- a/source3/librpc/idl/wbint.idl
+++ b/source3/librpc/idl/wbint.idl
@@ -83,4 +83,9 @@ interface wbint
 	[in] wbint_SidArray *sids,
 	[out] wbint_RidArray *rids
 	);
+
+    NTSTATUS wbint_LookupUserGroups(
+	[in] dom_sid *sid,
+	[out] wbint_SidArray *sids
+	);
 }
\ No newline at end of file
diff --git a/source3/winbindd/wb_lookupusergroups.c b/source3/winbindd/wb_lookupusergroups.c
new file mode 100644
index 0000000000..4e96b45c57
--- /dev/null
+++ b/source3/winbindd/wb_lookupusergroups.c
@@ -0,0 +1,99 @@
+/*
+   Unix SMB/CIFS implementation.
+   async lookupusergroups
+   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_lookupusergroups_state {
+	struct tevent_context *ev;
+	struct dom_sid sid;
+	struct wbint_SidArray sids;
+};
+
+static void wb_lookupusergroups_done(struct tevent_req *subreq);
+
+struct tevent_req *wb_lookupusergroups_send(TALLOC_CTX *mem_ctx,
+					    struct tevent_context *ev,
+					    struct winbindd_domain *domain,
+					    const struct dom_sid *sid)
+{
+	struct tevent_req *req, *subreq;
+	struct wb_lookupusergroups_state *state;
+	NTSTATUS status;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct wb_lookupusergroups_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	sid_copy(&state->sid, sid);
+
+	status = wcache_lookup_usergroups(domain, 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);
+	}
+
+	subreq = rpccli_wbint_LookupUserGroups_send(
+		state, ev, domain->child.rpccli, &state->sid, &state->sids);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, wb_lookupusergroups_done, req);
+	return req;
+}
+
+static void wb_lookupusergroups_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_lookupusergroups_state *state = tevent_req_data(
+		req, struct wb_lookupusergroups_state);
+	NTSTATUS status, result;
+
+	status = rpccli_wbint_LookupUserGroups_recv(subreq, state, &result);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+	if (!NT_STATUS_IS_OK(result)) {
+		tevent_req_nterror(req, result);
+		return;
+	}
+	tevent_req_done(req);
+}
+
+NTSTATUS wb_lookupusergroups_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+				  int *num_sids, struct dom_sid **sids)
+{
+	struct wb_lookupusergroups_state *state = tevent_req_data(
+		req, struct wb_lookupusergroups_state);
+	NTSTATUS status;
+
+	if (tevent_req_is_nterror(req, &status)) {
+		return status;
+	}
+	*num_sids = state->sids.num_sids;
+	*sids = talloc_move(mem_ctx, &state->sids.sids);
+	return NT_STATUS_OK;
+}
diff --git a/source3/winbindd/winbindd_dual_srv.c b/source3/winbindd/winbindd_dual_srv.c
index 1a8cbd9b92..9be295ffdc 100644
--- a/source3/winbindd/winbindd_dual_srv.c
+++ b/source3/winbindd/winbindd_dual_srv.c
@@ -158,3 +158,17 @@ NTSTATUS _wbint_LookupUserAliases(pipes_struct *p,
 		domain, p->mem_ctx, r->in.sids->num_sids, r->in.sids->sids,
 		&r->out.rids->num_rids, &r->out.rids->rids);
 }
+
+NTSTATUS _wbint_LookupUserGroups(pipes_struct *p,
+				 struct wbint_LookupUserGroups *r)
+{
+	struct winbindd_domain *domain = wb_child_domain();
+
+	if (domain == NULL) {
+		return NT_STATUS_REQUEST_NOT_ACCEPTED;
+	}
+
+	return domain->methods->lookup_usergroups(
+		domain, p->mem_ctx, r->in.sid,
+		&r->out.sids->num_sids, &r->out.sids->sids);
+}
diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index fd67abbf6d..42acb9eea6 100644
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -184,6 +184,7 @@ NTSTATUS wcache_lookup_usergroups(struct winbindd_domain *domain,
 				  const struct dom_sid *user_sid,
 				  uint32_t *pnum_sids,
 				  struct dom_sid **psids);
+
 void wcache_flush_cache(void);
 NTSTATUS wcache_count_cached_creds(struct winbindd_domain *domain, int *count);
 NTSTATUS wcache_remove_oldest_cached_creds(struct winbindd_domain *domain, const DOM_SID *sid) ;
@@ -743,6 +744,12 @@ struct tevent_req *winbindd_getsidaliases_send(TALLOC_CTX *mem_ctx,
 					       struct winbindd_request *request);
 NTSTATUS winbindd_getsidaliases_recv(struct tevent_req *req,
 				     struct winbindd_response *response);
+struct tevent_req *wb_lookupusergroups_send(TALLOC_CTX *mem_ctx,
+					    struct tevent_context *ev,
+					    struct winbindd_domain *domain,
+					    const struct dom_sid *sid);
+NTSTATUS wb_lookupusergroups_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+				  int *num_sids, struct dom_sid **sids);
 
 
 #endif /*  _WINBINDD_PROTO_H_  */