summaryrefslogtreecommitdiffstats
path: root/source3/winbindd/wb_queryuser.c
diff options
context:
space:
mode:
Diffstat (limited to 'source3/winbindd/wb_queryuser.c')
-rw-r--r--source3/winbindd/wb_queryuser.c480
1 files changed, 480 insertions, 0 deletions
diff --git a/source3/winbindd/wb_queryuser.c b/source3/winbindd/wb_queryuser.c
new file mode 100644
index 0000000..c2758f1
--- /dev/null
+++ b/source3/winbindd/wb_queryuser.c
@@ -0,0 +1,480 @@
+/*
+ Unix SMB/CIFS implementation.
+ async queryuser
+ 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 "libsmb/samlogon_cache.h"
+#include "librpc/gen_ndr/ndr_winbind.h"
+
+struct wb_queryuser_state {
+ struct tevent_context *ev;
+ struct wbint_userinfo *info;
+ const struct wb_parent_idmap_config *idmap_cfg;
+ bool tried_dclookup;
+};
+
+static void wb_queryuser_idmap_setup_done(struct tevent_req *subreq);
+static void wb_queryuser_got_uid(struct tevent_req *subreq);
+static void wb_queryuser_got_domain(struct tevent_req *subreq);
+static void wb_queryuser_got_dc(struct tevent_req *subreq);
+static void wb_queryuser_got_gid(struct tevent_req *subreq);
+static void wb_queryuser_got_group_name(struct tevent_req *subreq);
+static void wb_queryuser_done(struct tevent_req *subreq);
+
+struct tevent_req *wb_queryuser_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ const struct dom_sid *user_sid)
+{
+ struct tevent_req *req, *subreq;
+ struct wb_queryuser_state *state;
+ struct wbint_userinfo *info;
+ struct dom_sid_buf buf;
+
+ req = tevent_req_create(mem_ctx, &state, struct wb_queryuser_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ D_INFO("WB command queryuser start.\nQuery user sid %s\n",
+ dom_sid_str_buf(user_sid, &buf));
+ state->ev = ev;
+
+ state->info = talloc_zero(state, struct wbint_userinfo);
+ if (tevent_req_nomem(state->info, req)) {
+ return tevent_req_post(req, ev);
+ }
+ info = state->info;
+
+ info->primary_gid = (gid_t)-1;
+
+ sid_copy(&info->user_sid, user_sid);
+
+ subreq = wb_parent_idmap_setup_send(state, state->ev);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, wb_queryuser_idmap_setup_done, req);
+ return req;
+}
+
+static void wb_queryuser_idmap_setup_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct wb_queryuser_state *state = tevent_req_data(
+ req, struct wb_queryuser_state);
+ NTSTATUS status;
+ struct dom_sid_buf buf;
+
+ status = wb_parent_idmap_setup_recv(subreq, &state->idmap_cfg);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ D_WARNING("wb_parent_idmap_setup_recv() failed with %s.\n",
+ nt_errstr(status));
+ return;
+ }
+
+ D_DEBUG("Convert the user SID %s to XID.\n",
+ dom_sid_str_buf(&state->info->user_sid, &buf));
+ subreq = wb_sids2xids_send(
+ state, state->ev, &state->info->user_sid, 1);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wb_queryuser_got_uid, req);
+ return;
+}
+
+static void wb_queryuser_got_uid(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct wb_queryuser_state *state = tevent_req_data(
+ req, struct wb_queryuser_state);
+ struct wbint_userinfo *info = state->info;
+ struct netr_SamInfo3 *info3;
+ struct dcerpc_binding_handle *child_binding_handle = NULL;
+ struct unixid xid;
+ uint32_t user_rid = 0;
+ NTSTATUS status;
+ struct dom_sid_buf buf, buf1;
+
+ status = wb_sids2xids_recv(subreq, &xid, 1);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ D_WARNING("wb_sids2xids_recv() failed with %s.\n",
+ nt_errstr(status));
+ return;
+ }
+
+ if ((xid.type != ID_TYPE_UID) && (xid.type != ID_TYPE_BOTH)) {
+ D_WARNING("XID type is %d, should be ID_TYPE_UID or ID_TYPE_BOTH.\n",
+ xid.type);
+ tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
+ return;
+ }
+
+ D_DEBUG("Received XID %"PRIu32" for SID %s.\n",
+ xid.id,
+ dom_sid_str_buf(&info->user_sid, &buf1));
+ info->uid = xid.id;
+
+ /*
+ * Default the group sid to "Domain Users" in the user's
+ * domain. The samlogon cache or the query_user call later on
+ * can override this.
+ * TODO: There is still missing functionality to set the correct group
+ * sid using samlogon cache (needs to use S4USelf).
+ * Once this is done, remove the workaround in test_membership_user() in
+ * source4/torture/local/nss_tests.c
+ */
+ sid_copy(&info->group_sid, &info->user_sid);
+ sid_split_rid(&info->group_sid, &user_rid);
+ sid_append_rid(&info->group_sid,
+ user_rid == DOMAIN_RID_GUEST ? DOMAIN_RID_GUESTS
+ : DOMAIN_RID_USERS);
+
+ D_DEBUG("Preconfigured 'Domain Users' RID %u was used to create group SID %s from user SID %s.\n",
+ DOMAIN_RID_USERS,
+ dom_sid_str_buf(&info->group_sid, &buf),
+ dom_sid_str_buf(&info->user_sid, &buf1));
+
+ info->homedir = talloc_strdup(info, lp_template_homedir());
+ D_DEBUG("Setting 'homedir' to the template '%s'.\n", info->homedir);
+ if (tevent_req_nomem(info->homedir, req)) {
+ return;
+ }
+
+ info->shell = talloc_strdup(info, lp_template_shell());
+ D_DEBUG("Setting 'shell' to the template '%s'.\n", info->shell);
+ if (tevent_req_nomem(info->shell, req)) {
+ return;
+ }
+
+ info3 = netsamlogon_cache_get(state, &info->user_sid);
+ if (info3 != NULL) {
+ D_DEBUG("Filling data received from netsamlogon_cache\n");
+ sid_compose(&info->group_sid, info3->base.domain_sid,
+ info3->base.primary_gid);
+ info->acct_name = talloc_move(
+ info, &info3->base.account_name.string);
+ info->full_name = talloc_move(
+ info, &info3->base.full_name.string);
+
+ info->domain_name = talloc_move(
+ state, &info3->base.logon_domain.string);
+
+ TALLOC_FREE(info3);
+ }
+
+ NDR_PRINT_DEBUG_LEVEL(DBGLVL_DEBUG, wbint_userinfo, state->info);
+ if (info->domain_name == NULL) {
+ D_DEBUG("Domain name is empty, calling wb_lookupsid_send() to get it.\n");
+ subreq = wb_lookupsid_send(state, state->ev, &info->user_sid);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wb_queryuser_got_domain, req);
+ return;
+ }
+
+ /*
+ * Note wb_sids2xids_send/recv was called before,
+ * so we're sure that wb_parent_idmap_setup_send/recv
+ * was already called.
+ */
+ child_binding_handle = idmap_child_handle();
+ D_DEBUG("Domain name is set, calling dcerpc_wbint_GetNssInfo_send()\n");
+ subreq = dcerpc_wbint_GetNssInfo_send(
+ state, state->ev, child_binding_handle, info);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wb_queryuser_done, req);
+}
+
+static void wb_queryuser_got_domain(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct wb_queryuser_state *state = tevent_req_data(
+ req, struct wb_queryuser_state);
+ struct wbint_userinfo *info = state->info;
+ enum lsa_SidType type;
+ struct dcerpc_binding_handle *child_binding_handle = NULL;
+ NTSTATUS status;
+
+ status = wb_lookupsid_recv(subreq, state, &type,
+ &info->domain_name, &info->acct_name);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ D_WARNING("wb_lookupsid_recv failed with %s.\n",
+ nt_errstr(status));
+ return;
+ }
+
+ NDR_PRINT_DEBUG_LEVEL(DBGLVL_DEBUG, wbint_userinfo, state->info);
+ switch (type) {
+ case SID_NAME_USER:
+ case SID_NAME_COMPUTER:
+ /*
+ * user case: we only need the account name from lookup_sids
+ */
+ break;
+ case SID_NAME_DOM_GRP:
+ case SID_NAME_ALIAS:
+ case SID_NAME_WKN_GRP:
+ /*
+ * also treat group-type SIDs (they might map to ID_TYPE_BOTH)
+ */
+ sid_copy(&info->group_sid, &info->user_sid);
+ break;
+ default:
+ D_WARNING("Unknown type:%d, return NT_STATUS_NO_SUCH_USER.\n",
+ type);
+ tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
+ return;
+ }
+
+ /*
+ * Note wb_sids2xids_send/recv was called before,
+ * so we're sure that wb_parent_idmap_setup_send/recv
+ * was already called.
+ */
+ child_binding_handle = idmap_child_handle();
+ D_DEBUG("About to call dcerpc_wbint_GetNssInfo_send()\n");
+ subreq = dcerpc_wbint_GetNssInfo_send(
+ state, state->ev, child_binding_handle, info);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wb_queryuser_done, req);
+}
+
+static void wb_queryuser_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct wb_queryuser_state *state = tevent_req_data(
+ req, struct wb_queryuser_state);
+ struct wbint_userinfo *info = state->info;
+ NTSTATUS status, result;
+ bool need_group_name = false;
+ const char *tmpl = NULL;
+
+ status = dcerpc_wbint_GetNssInfo_recv(subreq, info, &result);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ D_WARNING("GetNssInfo failed with %s.\n", nt_errstr(status));
+ return;
+ }
+
+ if (NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND) &&
+ !state->tried_dclookup) {
+ D_DEBUG("GetNssInfo got DOMAIN_CONTROLLER_NOT_FOUND, calling wb_dsgetdcname_send()\n");
+ subreq = wb_dsgetdcname_send(
+ state, state->ev, state->info->domain_name, NULL, NULL,
+ DS_RETURN_DNS_NAME);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wb_queryuser_got_dc, req);
+ return;
+ }
+
+ /*
+ * Ignore failure in "result" here. We'll try to fill in stuff
+ * that misses further down.
+ */
+
+ if (state->info->primary_gid == (gid_t)-1) {
+ D_DEBUG("Calling wb_sids2xids_send() to resolve primary gid.\n");
+ subreq = wb_sids2xids_send(
+ state, state->ev, &info->group_sid, 1);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wb_queryuser_got_gid, req);
+ return;
+ }
+
+ tmpl = lp_template_homedir();
+ if(strstr_m(tmpl, "%g") || strstr_m(tmpl, "%G")) {
+ need_group_name = true;
+ }
+ tmpl = lp_template_shell();
+ if(strstr_m(tmpl, "%g") || strstr_m(tmpl, "%G")) {
+ need_group_name = true;
+ }
+
+ if (need_group_name && state->info->primary_group_name == NULL) {
+ D_DEBUG("Calling wb_lookupsid_send() to resolve primary group name.\n");
+ subreq = wb_lookupsid_send(state, state->ev, &info->group_sid);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wb_queryuser_got_group_name,
+ req);
+ return;
+ }
+
+ NDR_PRINT_DEBUG_LEVEL(DBGLVL_DEBUG, wbint_userinfo, state->info);
+ tevent_req_done(req);
+}
+
+static void wb_queryuser_got_dc(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct wb_queryuser_state *state = tevent_req_data(
+ req, struct wb_queryuser_state);
+ struct wbint_userinfo *info = state->info;
+ struct netr_DsRGetDCNameInfo *dcinfo;
+ struct dcerpc_binding_handle *child_binding_handle = NULL;
+ NTSTATUS status;
+
+ status = wb_dsgetdcname_recv(subreq, state, &dcinfo);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ D_WARNING("wb_dsgetdcname_recv() failed with %s.\n",
+ nt_errstr(status));
+ return;
+ }
+
+ state->tried_dclookup = true;
+
+ D_DEBUG("Got DC name, calling wb_dsgetdcname_gencache_set().\n");
+ status = wb_dsgetdcname_gencache_set(info->domain_name, dcinfo);
+ if (tevent_req_nterror(req, status)) {
+ D_WARNING("wb_dsgetdcname_gencache_set() failed with %s.\n",
+ nt_errstr(status));
+ return;
+ }
+ NDR_PRINT_DEBUG_LEVEL(DBGLVL_DEBUG, wbint_userinfo, state->info);
+
+ /*
+ * Note wb_sids2xids_send/recv was called before,
+ * so we're sure that wb_parent_idmap_setup_send/recv
+ * was already called.
+ */
+ child_binding_handle = idmap_child_handle();
+ subreq = dcerpc_wbint_GetNssInfo_send(
+ state, state->ev, child_binding_handle, info);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wb_queryuser_done, req);
+}
+
+static void wb_queryuser_got_gid(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct wb_queryuser_state *state = tevent_req_data(
+ req, struct wb_queryuser_state);
+ struct unixid xid;
+ NTSTATUS status;
+ bool need_group_name = false;
+ const char *tmpl = NULL;
+ struct dom_sid_buf buf;
+
+ status = wb_sids2xids_recv(subreq, &xid, 1);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ D_WARNING("wb_sids2xids_recv() failed with %s.\n",
+ nt_errstr(status));
+ return;
+ }
+
+ D_DEBUG("Got XID %"PRIu32" with type %d.\n", xid.id, xid.type);
+ if ((xid.type != ID_TYPE_GID) && (xid.type != ID_TYPE_BOTH)) {
+ D_WARNING("Returning NT_STATUS_NO_SUCH_USER\n"
+ "xid.type must be ID_TYPE_UID or ID_TYPE_BOTH.\n");
+ tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
+ return;
+ }
+
+ state->info->primary_gid = xid.id;
+
+ tmpl = lp_template_homedir();
+ if(strstr_m(tmpl, "%g") || strstr_m(tmpl, "%G")) {
+ need_group_name = true;
+ }
+ tmpl = lp_template_shell();
+ if(strstr_m(tmpl, "%g") || strstr_m(tmpl, "%G")) {
+ need_group_name = true;
+ }
+
+ NDR_PRINT_DEBUG_LEVEL(DBGLVL_DEBUG, wbint_userinfo, state->info);
+
+ if (need_group_name && state->info->primary_group_name == NULL) {
+ D_DEBUG("Calling wb_lookupsid_send for group SID %s.\n",
+ dom_sid_str_buf(&state->info->group_sid, &buf));
+ subreq = wb_lookupsid_send(state, state->ev,
+ &state->info->group_sid);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, wb_queryuser_got_group_name,
+ req);
+ return;
+ }
+
+ D_DEBUG("No need to lookup primary group name. Request is done!\n");
+ tevent_req_done(req);
+}
+
+static void wb_queryuser_got_group_name(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct wb_queryuser_state *state = tevent_req_data(
+ req, struct wb_queryuser_state);
+ enum lsa_SidType type;
+ NTSTATUS status;
+ const char *domain_name;
+
+ status = wb_lookupsid_recv(subreq, state->info, &type, &domain_name,
+ &state->info->primary_group_name);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ D_WARNING("wb_lookupsid_recv() failed with %s.\n",
+ nt_errstr(status));
+ return;
+ }
+ tevent_req_done(req);
+}
+
+NTSTATUS wb_queryuser_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+ struct wbint_userinfo **pinfo)
+{
+ struct wb_queryuser_state *state = tevent_req_data(
+ req, struct wb_queryuser_state);
+ NTSTATUS status;
+
+ D_INFO("WB command queryuser end.\n");
+ NDR_PRINT_DEBUG_LEVEL(DBGLVL_INFO, wbint_userinfo, state->info);
+ if (tevent_req_is_nterror(req, &status)) {
+ return status;
+ }
+ *pinfo = talloc_move(mem_ctx, &state->info);
+ return NT_STATUS_OK;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-13 01:29:36 +0000