1 files changed, 442 insertions, 0 deletions
diff --git a/source4/winbind/wb_async_helpers.c b/source4/winbind/wb_async_helpers.c
new file mode 100644
index 0000000000..25d52a16b5
--- /dev/null
+++ b/source4/winbind/wb_async_helpers.c
@@ -0,0 +1,442 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   Copyright (C) Volker Lendecke 2005
+   
+   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/>.
+*/
+/*
+  a composite API for finding a DC and its name
+*/
+
+#include "includes.h"
+#include "libcli/composite/composite.h"
+#include "winbind/wb_async_helpers.h"
+
+#include "lib/messaging/irpc.h"
+#include "librpc/gen_ndr/irpc.h"
+#include "auth/credentials/credentials.h"
+#include "libcli/security/security.h"
+#include "libcli/auth/libcli_auth.h"
+#include "librpc/gen_ndr/ndr_netlogon_c.h"
+#include "librpc/gen_ndr/ndr_lsa_c.h"
+#include "librpc/gen_ndr/ndr_samr_c.h"
+
+#include "winbind/wb_helper.h"
+
+struct lsa_lookupsids_state {
+	struct composite_context *ctx;
+	int num_sids;
+	struct lsa_LookupSids r;
+	struct lsa_SidArray sids;
+	struct lsa_TransNameArray names;
+	uint32_t count;
+	struct wb_sid_object **result;
+};
+
+static void lsa_lookupsids_recv_names(struct rpc_request *req);
+
+struct composite_context *wb_lsa_lookupsids_send(TALLOC_CTX *mem_ctx,
+						 struct dcerpc_pipe *lsa_pipe,
+						 struct policy_handle *handle,
+						 int num_sids,
+						 const struct dom_sid **sids)
+{
+	struct composite_context *result;
+	struct rpc_request *req;
+	struct lsa_lookupsids_state *state;
+	int i;
+
+	result = composite_create(mem_ctx, lsa_pipe->conn->event_ctx);
+	if (result == NULL) goto failed;
+
+	state = talloc(result, struct lsa_lookupsids_state);
+	if (state == NULL) goto failed;
+	result->private_data = state;
+	state->ctx = result;
+
+	state->sids.num_sids = num_sids;
+	state->sids.sids = talloc_array(state, struct lsa_SidPtr, num_sids);
+	if (state->sids.sids == NULL) goto failed;
+
+	for (i=0; i<num_sids; i++) {
+		state->sids.sids[i].sid = dom_sid_dup(state->sids.sids,
+						      sids[i]);
+		if (state->sids.sids[i].sid == NULL) goto failed;
+	}
+
+	state->count = 0;
+	state->num_sids = num_sids;
+	state->names.count = 0;
+	state->names.names = NULL;
+
+	state->r.in.handle = handle;
+	state->r.in.sids = &state->sids;
+	state->r.in.names = &state->names;
+	state->r.in.level = 1;
+	state->r.in.count = &state->count;
+	state->r.out.names = &state->names;
+	state->r.out.count = &state->count;
+
+	req = dcerpc_lsa_LookupSids_send(lsa_pipe, state, &state->r);
+	if (req == NULL) goto failed;
+
+	req->async.callback = lsa_lookupsids_recv_names;
+	req->async.private_data = state;
+	return result;
+
+ failed:
+	talloc_free(result);
+	return NULL;
+}
+
+static void lsa_lookupsids_recv_names(struct rpc_request *req)
+{
+	struct lsa_lookupsids_state *state =
+		talloc_get_type(req->async.private_data,
+				struct lsa_lookupsids_state);
+	int i;
+
+	state->ctx->status = dcerpc_ndr_request_recv(req);
+	if (!composite_is_ok(state->ctx)) return;
+	state->ctx->status = state->r.out.result;
+	if (!NT_STATUS_IS_OK(state->ctx->status) &&
+	    !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
+		composite_error(state->ctx, state->ctx->status);
+		return;
+	}
+
+	state->result = talloc_array(state, struct wb_sid_object *,
+				     state->num_sids);
+	if (composite_nomem(state->result, state->ctx)) return;
+
+	for (i=0; i<state->num_sids; i++) {
+		struct lsa_TranslatedName *name =
+			&state->r.out.names->names[i];
+		struct lsa_DomainInfo *dom;
+
+		state->result[i] = talloc_zero(state->result,
+					       struct wb_sid_object);
+		if (composite_nomem(state->result[i], state->ctx)) return;
+
+		state->result[i]->type = name->sid_type;
+		if (state->result[i]->type == SID_NAME_UNKNOWN) {
+			continue;
+		}
+
+		if (name->sid_index >= state->r.out.domains->count) {
+			composite_error(state->ctx,
+					NT_STATUS_INVALID_PARAMETER);
+			return;
+		}
+
+		dom = &state->r.out.domains->domains[name->sid_index];
+		state->result[i]->domain = talloc_reference(state->result[i],
+							    dom->name.string);
+		if ((name->sid_type == SID_NAME_DOMAIN) ||
+		    (name->name.string == NULL)) {
+			state->result[i]->name =
+				talloc_strdup(state->result[i], "");
+		} else {
+			state->result[i]->name =
+				talloc_steal(state->result[i],
+					     name->name.string);
+		}
+
+		if (composite_nomem(state->result[i]->name, state->ctx)) {
+			return;
+		}
+	}
+
+	composite_done(state->ctx);
+}
+
+NTSTATUS wb_lsa_lookupsids_recv(struct composite_context *c,
+				TALLOC_CTX *mem_ctx,
+				struct wb_sid_object ***names)
+{
+	NTSTATUS status = composite_wait(c);
+	if (NT_STATUS_IS_OK(status)) {
+		struct lsa_lookupsids_state *state =
+			talloc_get_type(c->private_data,
+					struct lsa_lookupsids_state);
+		*names = talloc_steal(mem_ctx, state->result);
+	}
+	talloc_free(c);
+	return status;
+}
+
+
+struct lsa_lookupnames_state {
+	struct composite_context *ctx;
+	uint32_t num_names;
+	struct lsa_LookupNames r;
+	struct lsa_TransSidArray sids;
+	uint32_t count;
+	struct wb_sid_object **result;
+};
+
+static void lsa_lookupnames_recv_sids(struct rpc_request *req);
+
+struct composite_context *wb_lsa_lookupnames_send(TALLOC_CTX *mem_ctx,
+						  struct dcerpc_pipe *lsa_pipe,
+						  struct policy_handle *handle,
+						  int num_names,
+						  const char **names)
+{
+	struct composite_context *result;
+	struct rpc_request *req;
+	struct lsa_lookupnames_state *state;
+
+	struct lsa_String *lsa_names;
+	int i;
+
+	result = composite_create(mem_ctx, lsa_pipe->conn->event_ctx);
+	if (result == NULL) goto failed;
+
+	state = talloc(result, struct lsa_lookupnames_state);
+	if (state == NULL) goto failed;
+	result->private_data = state;
+	state->ctx = result;
+
+	state->sids.count = 0;
+	state->sids.sids = NULL;
+	state->num_names = num_names;
+	state->count = 0;
+
+	lsa_names = talloc_array(state, struct lsa_String, num_names);
+	if (lsa_names == NULL) goto failed;
+
+	for (i=0; i<num_names; i++) {
+		lsa_names[i].string = names[i];
+	}
+
+	state->r.in.handle = handle;
+	state->r.in.num_names = num_names;
+	state->r.in.names = lsa_names;
+	state->r.in.sids = &state->sids;
+	state->r.in.level = 1;
+	state->r.in.count = &state->count;
+	state->r.out.count = &state->count;
+	state->r.out.sids = &state->sids;
+
+	req = dcerpc_lsa_LookupNames_send(lsa_pipe, state, &state->r);
+	if (req == NULL) goto failed;
+
+	req->async.callback = lsa_lookupnames_recv_sids;
+	req->async.private_data = state;
+	return result;
+
+ failed:
+	talloc_free(result);
+	return NULL;
+}
+
+static void lsa_lookupnames_recv_sids(struct rpc_request *req)
+{
+	struct lsa_lookupnames_state *state =
+		talloc_get_type(req->async.private_data,
+				struct lsa_lookupnames_state);
+	int i;
+
+	state->ctx->status = dcerpc_ndr_request_recv(req);
+	if (!composite_is_ok(state->ctx)) return;
+	state->ctx->status = state->r.out.result;
+	if (!NT_STATUS_IS_OK(state->ctx->status) &&
+	    !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
+		composite_error(state->ctx, state->ctx->status);
+		return;
+	}
+
+	state->result = talloc_array(state, struct wb_sid_object *,
+				     state->num_names);
+	if (composite_nomem(state->result, state->ctx)) return;
+
+	for (i=0; i<state->num_names; i++) {
+		struct lsa_TranslatedSid *sid = &state->r.out.sids->sids[i];
+		struct lsa_DomainInfo *dom;
+
+		state->result[i] = talloc_zero(state->result,
+					       struct wb_sid_object);
+		if (composite_nomem(state->result[i], state->ctx)) return;
+
+		state->result[i]->type = sid->sid_type;
+		if (state->result[i]->type == SID_NAME_UNKNOWN) {
+			continue;
+		}
+
+		if (sid->sid_index >= state->r.out.domains->count) {
+			composite_error(state->ctx,
+					NT_STATUS_INVALID_PARAMETER);
+			return;
+		}
+
+		dom = &state->r.out.domains->domains[sid->sid_index];
+
+		state->result[i]->sid = dom_sid_add_rid(state->result[i],
+							dom->sid, sid->rid);
+	}
+
+	composite_done(state->ctx);
+}
+
+NTSTATUS wb_lsa_lookupnames_recv(struct composite_context *c,
+				 TALLOC_CTX *mem_ctx,
+				 struct wb_sid_object ***sids)
+{
+	NTSTATUS status = composite_wait(c);
+	if (NT_STATUS_IS_OK(status)) {
+		struct lsa_lookupnames_state *state =
+			talloc_get_type(c->private_data,
+					struct lsa_lookupnames_state);
+		*sids = talloc_steal(mem_ctx, state->result);
+	}
+	talloc_free(c);
+	return status;
+}
+struct samr_getuserdomgroups_state {
+	struct composite_context *ctx;
+	struct dcerpc_pipe *samr_pipe;
+
+	int num_rids;
+	uint32_t *rids;
+
+	struct policy_handle *user_handle;
+	struct samr_OpenUser o;
+	struct samr_GetGroupsForUser g;
+	struct samr_Close c;
+};
+
+static void samr_usergroups_recv_open(struct rpc_request *req);
+static void samr_usergroups_recv_groups(struct rpc_request *req);
+static void samr_usergroups_recv_close(struct rpc_request *req);
+
+struct composite_context *wb_samr_userdomgroups_send(TALLOC_CTX *mem_ctx,
+						     struct dcerpc_pipe *samr_pipe,
+						     struct policy_handle *domain_handle,
+						     uint32_t rid)
+{
+	struct composite_context *result;
+	struct rpc_request *req;
+	struct samr_getuserdomgroups_state *state;
+
+	result = composite_create(mem_ctx, samr_pipe->conn->event_ctx);
+	if (result == NULL) goto failed;
+
+	state = talloc(result, struct samr_getuserdomgroups_state);
+	if (state == NULL) goto failed;
+	result->private_data = state;
+	state->ctx = result;
+
+	state->samr_pipe = samr_pipe;
+
+	state->user_handle = talloc(state, struct policy_handle);
+	if (state->user_handle == NULL) goto failed;
+
+	state->o.in.domain_handle = domain_handle;
+	state->o.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
+	state->o.in.rid = rid;
+	state->o.out.user_handle = state->user_handle;
+
+	req = dcerpc_samr_OpenUser_send(state->samr_pipe, state, &state->o);
+	if (req == NULL) goto failed;
+
+	req->async.callback = samr_usergroups_recv_open;
+	req->async.private_data = state;
+	return result;
+
+ failed:
+	talloc_free(result);
+	return NULL;
+}
+					      
+static void samr_usergroups_recv_open(struct rpc_request *req)
+{
+	struct samr_getuserdomgroups_state *state =
+		talloc_get_type(req->async.private_data,
+				struct samr_getuserdomgroups_state);
+
+	state->ctx->status = dcerpc_ndr_request_recv(req);
+	if (!composite_is_ok(state->ctx)) return;
+	state->ctx->status = state->o.out.result;
+	if (!composite_is_ok(state->ctx)) return;
+
+	state->g.in.user_handle = state->user_handle;
+
+	req = dcerpc_samr_GetGroupsForUser_send(state->samr_pipe, state,
+						&state->g);
+	composite_continue_rpc(state->ctx, req, samr_usergroups_recv_groups,
+			       state);
+}
+
+static void samr_usergroups_recv_groups(struct rpc_request *req)
+{
+	struct samr_getuserdomgroups_state *state =
+		talloc_get_type(req->async.private_data,
+				struct samr_getuserdomgroups_state);
+
+	state->ctx->status = dcerpc_ndr_request_recv(req);
+	if (!composite_is_ok(state->ctx)) return;
+	state->ctx->status = state->g.out.result;
+	if (!composite_is_ok(state->ctx)) return;
+
+	state->c.in.handle = state->user_handle;
+	state->c.out.handle = state->user_handle;
+
+	req = dcerpc_samr_Close_send(state->samr_pipe, state, &state->c);
+	composite_continue_rpc(state->ctx, req, samr_usergroups_recv_close,
+			       state);
+}
+
+static void samr_usergroups_recv_close(struct rpc_request *req)
+{
+        struct samr_getuserdomgroups_state *state =
+                talloc_get_type(req->async.private_data,
+                                struct samr_getuserdomgroups_state);
+
+        state->ctx->status = dcerpc_ndr_request_recv(req);
+        if (!composite_is_ok(state->ctx)) return;
+        state->ctx->status = state->c.out.result;
+        if (!composite_is_ok(state->ctx)) return;
+
+	composite_done(state->ctx);
+}
+
+NTSTATUS wb_samr_userdomgroups_recv(struct composite_context *ctx,
+				    TALLOC_CTX *mem_ctx,
+				    int *num_rids, uint32_t **rids)
+{
+        struct samr_getuserdomgroups_state *state =
+                talloc_get_type(ctx->private_data,
+                                struct samr_getuserdomgroups_state);
+
+	int i;
+	NTSTATUS status = composite_wait(ctx);
+	if (!NT_STATUS_IS_OK(status)) goto done;
+
+	*num_rids = state->g.out.rids->count;
+	*rids = talloc_array(mem_ctx, uint32_t, *num_rids);
+	if (*rids == NULL) {
+		status = NT_STATUS_NO_MEMORY;
+		goto done;
+	}
+
+	for (i=0; i<*num_rids; i++) {
+		(*rids)[i] = state->g.out.rids->rids[i].rid;
+	}
+
+ done:
+	talloc_free(ctx);
+	return status;
+}