creds_ctx);
}
-NTSTATUS rpccli_setup_netlogon_creds(
+NTSTATUS rpccli_setup_netlogon_creds_locked(
struct cli_state *cli,
enum dcerpc_transport_t transport,
struct netlogon_creds_cli_context *creds_ctx,
bool force_reauth,
- struct cli_credentials *cli_creds)
+ struct cli_credentials *cli_creds,
+ uint32_t *negotiate_flags)
{
TALLOC_CTX *frame = talloc_stackframe();
struct rpc_pipe_client *netlogon_pipe = NULL;
creds->account_name, creds->computer_name,
smbXcli_conn_remote_name(cli->conn)));
if (!force_reauth) {
- TALLOC_FREE(frame);
- return NT_STATUS_OK;
+ goto done;
}
TALLOC_FREE(creds);
}
creds->account_name, creds->computer_name,
smbXcli_conn_remote_name(cli->conn)));
+done:
+ if (negotiate_flags != NULL) {
+ *negotiate_flags = creds->negotiate_flags;
+ }
+
TALLOC_FREE(frame);
return NT_STATUS_OK;
}
-static NTSTATUS map_validation_to_info3(TALLOC_CTX *mem_ctx,
- uint16_t validation_level,
- union netr_Validation *validation,
- struct netr_SamInfo3 **info3_p)
+NTSTATUS rpccli_setup_netlogon_creds(
+ struct cli_state *cli,
+ enum dcerpc_transport_t transport,
+ struct netlogon_creds_cli_context *creds_ctx,
+ bool force_reauth,
+ struct cli_credentials *cli_creds)
+{
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct netlogon_creds_cli_lck *lck;
+ NTSTATUS status;
+
+ status = netlogon_creds_cli_lck(
+ creds_ctx, NETLOGON_CREDS_CLI_LCK_EXCLUSIVE,
+ frame, &lck);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_WARNING("netlogon_creds_cli_lck failed: %s\n",
+ nt_errstr(status));
+ TALLOC_FREE(frame);
+ return status;
+ }
+
+ status = rpccli_setup_netlogon_creds_locked(
+ cli, transport, creds_ctx, force_reauth, cli_creds, NULL);
+
+ TALLOC_FREE(frame);
+
+ return status;
+}
+
+NTSTATUS rpccli_connect_netlogon(
+ struct cli_state *cli,
+ enum dcerpc_transport_t transport,
+ struct netlogon_creds_cli_context *creds_ctx,
+ bool force_reauth,
+ struct cli_credentials *trust_creds,
+ struct rpc_pipe_client **_rpccli)
{
- struct netr_SamInfo3 *info3;
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct netlogon_creds_CredentialState *creds = NULL;
+ enum netlogon_creds_cli_lck_type lck_type;
+ enum netr_SchannelType sec_chan_type;
+ struct netlogon_creds_cli_lck *lck = NULL;
+ uint32_t negotiate_flags;
+ uint8_t found_session_key[16] = {0};
+ bool found_existing_creds = false;
+ bool do_serverauth;
+ struct rpc_pipe_client *rpccli;
NTSTATUS status;
+ bool retry = false;
+
+ sec_chan_type = cli_credentials_get_secure_channel_type(trust_creds);
+ if (sec_chan_type == SEC_CHAN_NULL) {
+ DBG_ERR("secure_channel_type gave SEC_CHAN_NULL\n");
+ status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ goto fail;
+ }
- if (validation == NULL) {
- return NT_STATUS_INVALID_PARAMETER;
+again:
+
+ /*
+ * See whether we can use existing netlogon_creds or
+ * whether we have to serverauthenticate.
+ */
+ status = netlogon_creds_cli_get(creds_ctx, frame, &creds);
+
+ if (NT_STATUS_IS_OK(status)) {
+ int cmp = memcmp(found_session_key,
+ creds->session_key,
+ sizeof(found_session_key));
+ found_existing_creds = (cmp != 0);
+
+ memcpy(found_session_key,
+ creds->session_key,
+ sizeof(found_session_key));
+
+ TALLOC_FREE(creds);
}
- switch (validation_level) {
- case 3:
- if (validation->sam3 == NULL) {
- return NT_STATUS_INVALID_PARAMETER;
+ lck_type = (force_reauth || !found_existing_creds) ?
+ NETLOGON_CREDS_CLI_LCK_EXCLUSIVE :
+ NETLOGON_CREDS_CLI_LCK_SHARED;
+
+ status = netlogon_creds_cli_lck(creds_ctx, lck_type, frame, &lck);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_DEBUG("netlogon_creds_cli_lck failed: %s\n",
+ nt_errstr(status));
+ goto fail;
+ }
+
+ if (!found_existing_creds) {
+ /*
+ * Try to find creds under the lock again. Someone
+ * else might have done it for us.
+ */
+ status = netlogon_creds_cli_get(creds_ctx, frame, &creds);
+
+ if (NT_STATUS_IS_OK(status)) {
+ int cmp = memcmp(found_session_key,
+ creds->session_key,
+ sizeof(found_session_key));
+ found_existing_creds = (cmp != 0);
+
+ memcpy(found_session_key, creds->session_key,
+ sizeof(found_session_key));
+
+ TALLOC_FREE(creds);
}
+ }
- info3 = talloc_move(mem_ctx, &validation->sam3);
- break;
- case 6:
- if (validation->sam6 == NULL) {
- return NT_STATUS_INVALID_PARAMETER;
+ do_serverauth = force_reauth || !found_existing_creds;
+
+ if (!do_serverauth) {
+ /*
+ * Do the quick schannel bind without a reauth
+ */
+ status = cli_rpc_pipe_open_bind_schannel(
+ cli, &ndr_table_netlogon, transport, creds_ctx,
+ &rpccli);
+ if (!retry && NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
+ DBG_DEBUG("Retrying with serverauthenticate\n");
+ TALLOC_FREE(lck);
+ retry = true;
+ goto again;
+ }
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_DEBUG("cli_rpc_pipe_open_bind_schannel "
+ "failed: %s\n", nt_errstr(status));
+ goto fail;
}
+ goto done;
+ }
- info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
- if (info3 == NULL) {
- return NT_STATUS_NO_MEMORY;
+ if (cli_credentials_is_anonymous(trust_creds)) {
+ DBG_WARNING("get_trust_credential for %s only gave anonymous,"
+ "unable to negotiate NETLOGON credentials\n",
+ netlogon_creds_cli_debug_string(
+ creds_ctx, frame));
+ status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ goto fail;
+ }
+
+ status = rpccli_setup_netlogon_creds_locked(
+ cli, transport, creds_ctx, true, trust_creds,
+ &negotiate_flags);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_DEBUG("rpccli_setup_netlogon_creds failed for %s, "
+ "unable to setup NETLOGON credentials: %s\n",
+ netlogon_creds_cli_debug_string(
+ creds_ctx, frame),
+ nt_errstr(status));
+ goto fail;
+ }
+
+ if (!(negotiate_flags & NETLOGON_NEG_AUTHENTICATED_RPC)) {
+ if (lp_winbind_sealed_pipes() || lp_require_strong_key()) {
+ status = NT_STATUS_DOWNGRADE_DETECTED;
+ DBG_WARNING("Unwilling to make connection to %s"
+ "without connection level security, "
+ "must set 'winbind sealed pipes = false'"
+ " and 'require strong key = false' "
+ "to proceed: %s\n",
+ netlogon_creds_cli_debug_string(
+ creds_ctx, frame),
+ nt_errstr(status));
+ goto fail;
}
- status = copy_netr_SamBaseInfo(info3, &validation->sam6->base, &info3->base);
+
+ status = cli_rpc_pipe_open_noauth_transport(
+ cli, transport, &ndr_table_netlogon, &rpccli);
if (!NT_STATUS_IS_OK(status)) {
- TALLOC_FREE(info3);
- return status;
+ DBG_DEBUG("cli_rpc_pipe_open_noauth_transport "
+ "failed: %s\n", nt_errstr(status));
+ goto fail;
}
+ goto done;
+ }
- info3->sidcount = validation->sam6->sidcount;
- info3->sids = talloc_move(info3, &validation->sam6->sids);
- break;
- default:
- return NT_STATUS_BAD_VALIDATION_CLASS;
+ status = cli_rpc_pipe_open_bind_schannel(
+ cli, &ndr_table_netlogon, transport, creds_ctx, &rpccli);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_DEBUG("cli_rpc_pipe_open_bind_schannel "
+ "failed: %s\n", nt_errstr(status));
+ goto fail;
}
- *info3_p = info3;
+ status = netlogon_creds_cli_check(creds_ctx, rpccli->binding_handle,
+ NULL);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_WARNING("netlogon_creds_cli_check failed: %s\n",
+ nt_errstr(status));
+ goto fail;
+ }
- return NT_STATUS_OK;
+done:
+ *_rpccli = rpccli;
+ status = NT_STATUS_OK;
+fail:
+ ZERO_STRUCT(found_session_key);
+ TALLOC_FREE(lck);
+ TALLOC_FREE(frame);
+ return status;
}
/* Logon domain user */
git.samba.org / metze / samba / wip.git / blobdiff