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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:20:00 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:20:00 +0000
commit8daa83a594a2e98f39d764422bfbdbc62c9efd44 (patch)
tree4099e8021376c7d8c05bdf8503093d80e9c7bad0 /source3/winbindd/winbindd_pam_auth_crap.c
parentInitial commit. (diff)
downloadsamba-8daa83a594a2e98f39d764422bfbdbc62c9efd44.tar.xz
samba-8daa83a594a2e98f39d764422bfbdbc62c9efd44.zip
Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'source3/winbindd/winbindd_pam_auth_crap.c')
-rw-r--r--source3/winbindd/winbindd_pam_auth_crap.c285
1 files changed, 285 insertions, 0 deletions
diff --git a/source3/winbindd/winbindd_pam_auth_crap.c b/source3/winbindd/winbindd_pam_auth_crap.c
new file mode 100644
index 0000000..e6a32c7
--- /dev/null
+++ b/source3/winbindd/winbindd_pam_auth_crap.c
@@ -0,0 +1,285 @@
+/*
+ Unix SMB/CIFS implementation.
+ async implementation of WINBINDD_PAM_AUTH_CRAP
+ Copyright (C) Volker Lendecke 2010
+
+ 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 "rpc_client/util_netlogon.h"
+#include "libcli/security/dom_sid.h"
+#include "lib/util/string_wrappers.h"
+#include "lib/global_contexts.h"
+#include "librpc/gen_ndr/ndr_winbind_c.h"
+
+struct winbindd_pam_auth_crap_state {
+ uint8_t authoritative;
+ uint32_t flags;
+ bool pac_is_trusted;
+ char *domain;
+ char *user;
+ struct wbint_PamAuthCrapValidation validation;
+ NTSTATUS result;
+};
+
+static void winbindd_pam_auth_crap_done(struct tevent_req *subreq);
+
+struct tevent_req *winbindd_pam_auth_crap_send(
+ TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct winbindd_cli_state *cli,
+ struct winbindd_request *request)
+{
+ struct tevent_req *req, *subreq;
+ struct winbindd_pam_auth_crap_state *state;
+ struct winbindd_domain *domain;
+ const char *auth_domain = NULL;
+ DATA_BLOB lm_resp = data_blob_null;
+ DATA_BLOB nt_resp = data_blob_null;
+ DATA_BLOB chal = data_blob_null;
+ struct wbint_SidArray *require_membership_of_sid = NULL;
+ NTSTATUS status;
+ bool lmlength_ok = false;
+ bool ntlength_ok = false;
+ bool pwlength_ok = false;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct winbindd_pam_auth_crap_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->authoritative = 1;
+ state->flags = request->flags;
+
+ if (state->flags & WBFLAG_PAM_AUTH_PAC) {
+ state->result = winbindd_pam_auth_pac_verify(cli,
+ state,
+ &state->pac_is_trusted,
+ &state->validation.level,
+ &state->validation.validation);
+ if (tevent_req_nterror(req, state->result)) {
+ return tevent_req_post(req, ev);
+ }
+
+ tevent_req_done(req);
+ return tevent_req_post(req, ev);
+ }
+
+ /* Ensure null termination */
+ request->data.auth_crap.user[
+ sizeof(request->data.auth_crap.user)-1] = '\0';
+ request->data.auth_crap.domain[
+ sizeof(request->data.auth_crap.domain)-1] = '\0';
+ request->data.auth_crap.workstation[
+ sizeof(request->data.auth_crap.workstation)-1] = '\0';
+
+ DBG_NOTICE("[%5lu]: pam auth crap domain: [%s] user: [%s] "
+ "workstation: [%s]\n",
+ (unsigned long)cli->pid,
+ request->data.auth_crap.domain,
+ request->data.auth_crap.user,
+ request->data.auth_crap.workstation);
+
+ if (!check_request_flags(request->flags)) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
+ return tevent_req_post(req, ev);
+ }
+
+ auth_domain = request->data.auth_crap.domain;
+ if (auth_domain[0] == '\0') {
+ auth_domain = lp_workgroup();
+ }
+
+ domain = find_auth_domain(request->flags, auth_domain);
+ if (domain == NULL) {
+ /*
+ * We don't know the domain so
+ * we're not authoritative
+ */
+ state->authoritative = 0;
+ tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
+ return tevent_req_post(req, ev);
+ }
+
+ if (request->data.auth_crap.workstation[0] == '\0') {
+ fstrcpy(request->data.auth_crap.workstation, lp_netbios_name());
+ }
+
+ lmlength_ok = (request->data.auth_crap.lm_resp_len <=
+ sizeof(request->data.auth_crap.lm_resp));
+
+ ntlength_ok = (request->data.auth_crap.nt_resp_len <=
+ sizeof(request->data.auth_crap.nt_resp));
+
+ ntlength_ok |=
+ ((request->flags & WBFLAG_BIG_NTLMV2_BLOB) &&
+ (request->extra_len == request->data.auth_crap.nt_resp_len));
+
+ pwlength_ok = lmlength_ok && ntlength_ok;
+
+ if (!pwlength_ok) {
+ DBG_ERR("Invalid password length %u/%u\n",
+ request->data.auth_crap.lm_resp_len,
+ request->data.auth_crap.nt_resp_len);
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+
+ state->domain = talloc_strdup(state, request->data.auth_crap.domain);
+ if (tevent_req_nomem(state->domain, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ state->user = talloc_strdup(state, request->data.auth_crap.user);
+ if (tevent_req_nomem(state->user, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ status = extra_data_to_sid_array(
+ request->data.auth_crap.require_membership_of_sid,
+ state,
+ &require_membership_of_sid);
+ if (tevent_req_nterror(req, status)) {
+ return tevent_req_post(req, ev);
+ }
+
+ lm_resp = data_blob_talloc(state,
+ request->data.auth_crap.lm_resp,
+ request->data.auth_crap.lm_resp_len);
+ if (tevent_req_nomem(lm_resp.data, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ if (request->flags & WBFLAG_BIG_NTLMV2_BLOB) {
+ nt_resp = data_blob_talloc(state,
+ request->extra_data.data,
+ request->data.auth_crap.nt_resp_len);
+ } else {
+ nt_resp = data_blob_talloc(state,
+ request->data.auth_crap.nt_resp,
+ request->data.auth_crap.nt_resp_len);
+ }
+ if (tevent_req_nomem(nt_resp.data, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ chal = data_blob_talloc(state,
+ request->data.auth_crap.chal,
+ 8);
+ if (tevent_req_nomem(chal.data, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ subreq = dcerpc_wbint_PamAuthCrap_send(state,
+ global_event_context(),
+ dom_child_handle(domain),
+ request->client_name,
+ request->pid,
+ request->flags,
+ request->data.auth_crap.user,
+ request->data.auth_crap.domain,
+ request->data.auth_crap.workstation,
+ lm_resp,
+ nt_resp,
+ chal,
+ request->data.auth_crap.logon_parameters,
+ require_membership_of_sid,
+ &state->authoritative,
+ &state->validation);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, winbindd_pam_auth_crap_done, req);
+ return req;
+}
+
+static void winbindd_pam_auth_crap_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct winbindd_pam_auth_crap_state *state = tevent_req_data(
+ req, struct winbindd_pam_auth_crap_state);
+ NTSTATUS status;
+
+ status = dcerpc_wbint_PamAuthCrap_recv(subreq, state, &state->result);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ return;
+ }
+
+ tevent_req_done(req);
+}
+
+NTSTATUS winbindd_pam_auth_crap_recv(struct tevent_req *req,
+ struct winbindd_response *response)
+{
+ struct winbindd_pam_auth_crap_state *state = tevent_req_data(
+ req, struct winbindd_pam_auth_crap_state);
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ goto out;
+ }
+
+ if (NT_STATUS_IS_ERR(state->result)) {
+ status = state->result;
+ goto out;
+ }
+
+ status = append_auth_data(response,
+ response,
+ state->flags,
+ state->validation.level,
+ state->validation.validation,
+ state->domain,
+ state->user);
+ if (NT_STATUS_IS_ERR(status)) {
+ goto out;
+ }
+
+ if (state->flags & WBFLAG_PAM_AUTH_PAC && !state->pac_is_trusted) {
+ /*
+ * Clear the flag just in state to do no add the domain
+ * from auth below.
+ */
+ state->flags &= ~WBFLAG_PAM_INFO3_TEXT;
+ }
+
+ if (state->flags & WBFLAG_PAM_INFO3_TEXT) {
+ bool ok;
+
+ ok = add_trusted_domain_from_auth(
+ response->data.auth.validation_level,
+ &response->data.auth.info3,
+ &response->data.auth.info6);
+ if (!ok) {
+ status = NT_STATUS_LOGON_FAILURE;
+ DBG_ERR("add_trusted_domain_from_auth failed\n");
+ set_auth_errors(response, status);
+ response->data.auth.authoritative =
+ state->authoritative;
+ return status;
+ }
+ }
+
+ status = NT_STATUS_OK;
+
+out:
+ set_auth_errors(response, status);
+ response->data.auth.authoritative = state->authoritative;
+ response->result = WINBINDD_PENDING;
+ return NT_STATUS(response->data.auth.nt_status);
+}