1 files changed, 290 insertions, 0 deletions
diff --git a/source3/winbindd/wb_gettoken.c b/source3/winbindd/wb_gettoken.c
new file mode 100644
index 0000000..3930f71
--- /dev/null
+++ b/source3/winbindd/wb_gettoken.c
@@ -0,0 +1,290 @@
+/*
+   Unix SMB/CIFS implementation.
+   async gettoken
+   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 "util/debug.h"
+#include "winbindd.h"
+#include "librpc/gen_ndr/ndr_winbind_c.h"
+#include "../libcli/security/security.h"
+#include "passdb/machine_sid.h"
+
+struct wb_gettoken_state {
+	struct tevent_context *ev;
+	struct dom_sid usersid;
+	bool expand_local_aliases;
+	uint32_t num_sids;
+	struct dom_sid *sids;
+};
+
+static NTSTATUS wb_add_rids_to_sids(TALLOC_CTX *mem_ctx,
+				    uint32_t *pnum_sids,
+				    struct dom_sid **psids,
+				    const struct dom_sid *domain_sid,
+				    uint32_t num_rids, uint32_t *rids);
+
+static void wb_gettoken_gotuser(struct tevent_req *subreq);
+static void wb_gettoken_gotgroups(struct tevent_req *subreq);
+static void wb_gettoken_gotlocalgroups(struct tevent_req *subreq);
+static void wb_gettoken_gotbuiltins(struct tevent_req *subreq);
+
+struct tevent_req *wb_gettoken_send(TALLOC_CTX *mem_ctx,
+				    struct tevent_context *ev,
+				    const struct dom_sid *sid,
+				    bool expand_local_aliases)
+{
+	struct tevent_req *req, *subreq;
+	struct wb_gettoken_state *state;
+	struct dom_sid_buf buf;
+
+	req = tevent_req_create(mem_ctx, &state, struct wb_gettoken_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	sid_copy(&state->usersid, sid);
+	state->ev = ev;
+	state->expand_local_aliases = expand_local_aliases;
+
+	D_INFO("WB command gettoken start.\n"
+	       "Query user SID %s (expand local aliases is %d).\n",
+	       dom_sid_str_buf(sid, &buf),
+	       expand_local_aliases);
+	subreq = wb_queryuser_send(state, ev, &state->usersid);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, wb_gettoken_gotuser, req);
+	return req;
+}
+
+static void wb_gettoken_gotuser(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_gettoken_state *state = tevent_req_data(
+		req, struct wb_gettoken_state);
+	struct wbint_userinfo *info;
+	NTSTATUS status;
+	struct dom_sid_buf buf0, buf1;
+
+	status = wb_queryuser_recv(subreq, state, &info);
+	TALLOC_FREE(subreq);
+	if (tevent_req_nterror(req, status)) {
+		return;
+	}
+
+	state->sids = talloc_array(state, struct dom_sid, 2);
+	if (tevent_req_nomem(state->sids, req)) {
+		return;
+	}
+	state->num_sids = 2;
+
+	D_DEBUG("Got user SID %s and group SID %s\n",
+		  dom_sid_str_buf(&info->user_sid, &buf0),
+		  dom_sid_str_buf(&info->group_sid, &buf1));
+	sid_copy(&state->sids[0], &info->user_sid);
+	sid_copy(&state->sids[1], &info->group_sid);
+
+	D_DEBUG("Looking up user groups for the user SID.\n");
+	subreq = wb_lookupusergroups_send(state, state->ev, &info->user_sid);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, wb_gettoken_gotgroups, req);
+}
+
+static void wb_gettoken_gotgroups(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_gettoken_state *state = tevent_req_data(
+		req, struct wb_gettoken_state);
+	uint32_t i, num_groups;
+	struct dom_sid *groups;
+	struct winbindd_domain *domain;
+	NTSTATUS status;
+	struct dom_sid_buf buf;
+
+	status = wb_lookupusergroups_recv(subreq, state, &num_groups, &groups);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_done(req);
+		return;
+	}
+
+	D_DEBUG("Received %"PRIu32" group(s).\n", num_groups);
+	for (i = 0; i < num_groups; i++) {
+		D_DEBUG("Adding SID %s.\n", dom_sid_str_buf(&groups[i], &buf));
+		status = add_sid_to_array_unique(
+			state, &groups[i], &state->sids, &state->num_sids);
+
+		if (tevent_req_nterror(req, status)) {
+			return;
+		}
+	}
+
+	if (!state->expand_local_aliases) {
+		D_DEBUG("Done. Not asked to expand local aliases.\n");
+		tevent_req_done(req);
+		return;
+	}
+
+	/*
+	 * Expand our domain's aliases
+	 */
+	domain = find_domain_from_sid_noinit(get_global_sam_sid());
+	if (domain == NULL) {
+		tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
+		return;
+	}
+
+	D_DEBUG("Expand domain's aliases for %"PRIu32" SID(s).\n",
+		state->num_sids);
+	subreq = wb_lookupuseraliases_send(state, state->ev, domain,
+					   state->num_sids, state->sids);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, wb_gettoken_gotlocalgroups, req);
+}
+
+static void wb_gettoken_gotlocalgroups(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_gettoken_state *state = tevent_req_data(
+		req, struct wb_gettoken_state);
+	uint32_t num_rids;
+	uint32_t *rids;
+	struct winbindd_domain *domain;
+	NTSTATUS status;
+
+	status = wb_lookupuseraliases_recv(subreq, state, &num_rids, &rids);
+	TALLOC_FREE(subreq);
+	if (tevent_req_nterror(req, status)) {
+		return;
+	}
+
+	D_DEBUG("Got %"PRIu32" RID(s).\n", num_rids);
+	status = wb_add_rids_to_sids(state, &state->num_sids, &state->sids,
+				     get_global_sam_sid(), num_rids, rids);
+	if (tevent_req_nterror(req, status)) {
+		return;
+	}
+	TALLOC_FREE(rids);
+
+	/*
+	 * Now expand the builtin groups
+	 */
+
+	D_DEBUG("Expand the builtin groups for %"PRIu32" SID(s).\n",
+		state->num_sids);
+	domain = find_domain_from_sid(&global_sid_Builtin);
+	if (domain == NULL) {
+		tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
+		return;
+	}
+
+	subreq = wb_lookupuseraliases_send(state, state->ev, domain,
+					   state->num_sids, state->sids);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, wb_gettoken_gotbuiltins, req);
+}
+
+static void wb_gettoken_gotbuiltins(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct wb_gettoken_state *state = tevent_req_data(
+		req, struct wb_gettoken_state);
+	uint32_t num_rids;
+        uint32_t *rids;
+	NTSTATUS status;
+
+	status = wb_lookupuseraliases_recv(subreq, state, &num_rids, &rids);
+	TALLOC_FREE(subreq);
+	if (tevent_req_nterror(req, status)) {
+		return;
+	}
+	D_DEBUG("Got %"PRIu32" RID(s).\n", num_rids);
+	status = wb_add_rids_to_sids(state, &state->num_sids, &state->sids,
+				     &global_sid_Builtin, num_rids, rids);
+	if (tevent_req_nterror(req, status)) {
+		return;
+	}
+	tevent_req_done(req);
+}
+
+NTSTATUS wb_gettoken_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+			  uint32_t *num_sids, struct dom_sid **sids)
+{
+	struct wb_gettoken_state *state = tevent_req_data(
+		req, struct wb_gettoken_state);
+	NTSTATUS status;
+	uint32_t i;
+
+	if (tevent_req_is_nterror(req, &status)) {
+		return status;
+	}
+	*num_sids = state->num_sids;
+	D_INFO("WB command gettoken end.\nReceived %"PRIu32" SID(s).\n",
+	       state->num_sids);
+
+	if (CHECK_DEBUGLVL(DBGLVL_INFO)) {
+		for (i = 0; i < state->num_sids; i++) {
+			struct dom_sid_buf sidbuf;
+			D_INFO("%"PRIu32": %s\n",
+			       i,
+			       dom_sid_str_buf(&state->sids[i],
+			       &sidbuf));
+		}
+	}
+
+	*sids = talloc_move(mem_ctx, &state->sids);
+	return NT_STATUS_OK;
+}
+
+static NTSTATUS wb_add_rids_to_sids(TALLOC_CTX *mem_ctx,
+				    uint32_t *pnum_sids,
+				    struct dom_sid **psids,
+				    const struct dom_sid *domain_sid,
+				    uint32_t num_rids, uint32_t *rids)
+{
+	uint32_t i;
+
+	D_DEBUG("%"PRIu32" SID(s) will be uniquely added to the SID array.\n"
+		"Before the addition the array has %"PRIu32" SID(s).\n",
+		num_rids, *pnum_sids);
+
+	for (i = 0; i < num_rids; i++) {
+		NTSTATUS status;
+		struct dom_sid sid;
+
+		sid_compose(&sid, domain_sid, rids[i]);
+		status = add_sid_to_array_unique(
+			mem_ctx, &sid, psids, pnum_sids);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+	}
+	D_DEBUG("After the addition the array has %"PRIu32" SID(s).\n",
+		*pnum_sids);
+	return NT_STATUS_OK;
+}