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https://github.com/samba-team/samba.git
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b722167b2c
Guenther Signed-off-by: Günther Deschner <gd@samba.org> Pair-Programmed-With: Andreas Schneider <asn@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
498 lines
13 KiB
C
498 lines
13 KiB
C
/*
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Unix SMB/CIFS implementation.
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NT Domain Authentication SMB / MSRPC client
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Copyright (C) Andrew Tridgell 1992-2000
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Copyright (C) Jeremy Allison 1998.
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Largely re-written by Jeremy Allison (C) 2005.
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Copyright (C) Guenther Deschner 2008.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "system/filesys.h"
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#include "libsmb/libsmb.h"
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#include "rpc_client/rpc_client.h"
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#include "rpc_client/cli_pipe.h"
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#include "../libcli/auth/libcli_auth.h"
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#include "../libcli/auth/netlogon_creds_cli.h"
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#include "../librpc/gen_ndr/ndr_netlogon_c.h"
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#include "../librpc/gen_ndr/schannel.h"
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#include "rpc_client/cli_netlogon.h"
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#include "rpc_client/init_netlogon.h"
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#include "rpc_client/util_netlogon.h"
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#include "../libcli/security/security.h"
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#include "lib/param/param.h"
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#include "libcli/smb/smbXcli_base.h"
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#include "dbwrap/dbwrap.h"
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#include "dbwrap/dbwrap_open.h"
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#include "util_tdb.h"
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NTSTATUS rpccli_pre_open_netlogon_creds(void)
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{
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static bool already_open = false;
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TALLOC_CTX *frame;
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struct loadparm_context *lp_ctx;
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char *fname;
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struct db_context *global_db;
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NTSTATUS status;
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if (already_open) {
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return NT_STATUS_OK;
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}
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frame = talloc_stackframe();
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lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
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if (lp_ctx == NULL) {
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TALLOC_FREE(frame);
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return NT_STATUS_NO_MEMORY;
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}
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fname = lpcfg_private_db_path(frame, lp_ctx, "netlogon_creds_cli");
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if (fname == NULL) {
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TALLOC_FREE(frame);
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return NT_STATUS_NO_MEMORY;
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}
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global_db = db_open(talloc_autofree_context(), fname,
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0, TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH,
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O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2,
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DBWRAP_FLAG_OPTIMIZE_READONLY_ACCESS);
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if (global_db == NULL) {
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TALLOC_FREE(frame);
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return NT_STATUS_NO_MEMORY;
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}
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status = netlogon_creds_cli_set_global_db(&global_db);
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TALLOC_FREE(frame);
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if (!NT_STATUS_IS_OK(status)) {
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return status;
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}
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already_open = true;
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return NT_STATUS_OK;
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}
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NTSTATUS rpccli_create_netlogon_creds(const char *server_computer,
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const char *server_netbios_domain,
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const char *client_account,
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enum netr_SchannelType sec_chan_type,
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struct messaging_context *msg_ctx,
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TALLOC_CTX *mem_ctx,
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struct netlogon_creds_cli_context **netlogon_creds)
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{
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TALLOC_CTX *frame = talloc_stackframe();
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struct loadparm_context *lp_ctx;
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NTSTATUS status;
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status = rpccli_pre_open_netlogon_creds();
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if (!NT_STATUS_IS_OK(status)) {
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TALLOC_FREE(frame);
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return status;
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}
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lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
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if (lp_ctx == NULL) {
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TALLOC_FREE(frame);
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return NT_STATUS_NO_MEMORY;
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}
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status = netlogon_creds_cli_context_global(lp_ctx,
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msg_ctx,
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client_account,
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sec_chan_type,
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server_computer,
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server_netbios_domain,
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mem_ctx, netlogon_creds);
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TALLOC_FREE(frame);
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if (!NT_STATUS_IS_OK(status)) {
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return status;
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}
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return NT_STATUS_OK;
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}
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NTSTATUS rpccli_setup_netlogon_creds(struct cli_state *cli,
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struct netlogon_creds_cli_context *netlogon_creds,
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bool force_reauth,
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struct samr_Password current_nt_hash,
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const struct samr_Password *previous_nt_hash)
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{
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TALLOC_CTX *frame = talloc_stackframe();
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struct rpc_pipe_client *netlogon_pipe = NULL;
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struct netlogon_creds_CredentialState *creds = NULL;
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NTSTATUS status;
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status = netlogon_creds_cli_get(netlogon_creds,
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frame, &creds);
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if (NT_STATUS_IS_OK(status)) {
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const char *action = "using";
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if (force_reauth) {
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action = "overwrite";
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}
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DEBUG(5,("%s: %s cached netlogon_creds cli[%s/%s] to %s\n",
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__FUNCTION__, action,
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creds->account_name, creds->computer_name,
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smbXcli_conn_remote_name(cli->conn)));
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if (!force_reauth) {
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TALLOC_FREE(frame);
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return NT_STATUS_OK;
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}
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TALLOC_FREE(creds);
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}
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status = cli_rpc_pipe_open_noauth(cli,
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&ndr_table_netlogon,
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&netlogon_pipe);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(5,("%s: failed to open noauth netlogon connection to %s - %s\n",
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__FUNCTION__,
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smbXcli_conn_remote_name(cli->conn),
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nt_errstr(status)));
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TALLOC_FREE(frame);
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return status;
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}
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talloc_steal(frame, netlogon_pipe);
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status = netlogon_creds_cli_auth(netlogon_creds,
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netlogon_pipe->binding_handle,
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current_nt_hash,
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previous_nt_hash);
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if (!NT_STATUS_IS_OK(status)) {
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TALLOC_FREE(frame);
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return status;
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}
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status = netlogon_creds_cli_get(netlogon_creds,
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frame, &creds);
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if (!NT_STATUS_IS_OK(status)) {
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TALLOC_FREE(frame);
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return NT_STATUS_INTERNAL_ERROR;
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}
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DEBUG(5,("%s: using new netlogon_creds cli[%s/%s] to %s\n",
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__FUNCTION__,
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creds->account_name, creds->computer_name,
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smbXcli_conn_remote_name(cli->conn)));
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TALLOC_FREE(frame);
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return NT_STATUS_OK;
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}
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static NTSTATUS map_validation_to_info3(TALLOC_CTX *mem_ctx,
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uint16_t validation_level,
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union netr_Validation *validation,
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struct netr_SamInfo3 **info3_p)
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{
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struct netr_SamInfo3 *info3;
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NTSTATUS status;
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if (validation == NULL) {
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return NT_STATUS_INVALID_PARAMETER;
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}
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switch (validation_level) {
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case 3:
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if (validation->sam3 == NULL) {
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return NT_STATUS_INVALID_PARAMETER;
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}
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info3 = talloc_move(mem_ctx, &validation->sam3);
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break;
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case 6:
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if (validation->sam6 == NULL) {
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return NT_STATUS_INVALID_PARAMETER;
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}
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info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
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if (info3 == NULL) {
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return NT_STATUS_NO_MEMORY;
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}
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status = copy_netr_SamBaseInfo(info3, &validation->sam6->base, &info3->base);
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if (!NT_STATUS_IS_OK(status)) {
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TALLOC_FREE(info3);
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return status;
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}
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info3->sidcount = validation->sam6->sidcount;
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info3->sids = talloc_move(info3, &validation->sam6->sids);
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break;
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default:
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return NT_STATUS_BAD_VALIDATION_CLASS;
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}
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*info3_p = info3;
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return NT_STATUS_OK;
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}
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/* Logon domain user */
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NTSTATUS rpccli_netlogon_password_logon(struct netlogon_creds_cli_context *creds,
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struct dcerpc_binding_handle *binding_handle,
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TALLOC_CTX *mem_ctx,
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uint32_t logon_parameters,
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const char *domain,
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const char *username,
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const char *password,
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const char *workstation,
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enum netr_LogonInfoClass logon_type,
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struct netr_SamInfo3 **info3)
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{
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TALLOC_CTX *frame = talloc_stackframe();
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NTSTATUS status;
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union netr_LogonLevel *logon;
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uint16_t validation_level = 0;
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union netr_Validation *validation = NULL;
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uint8_t authoritative = 0;
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uint32_t flags = 0;
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char *workstation_slash = NULL;
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logon = talloc_zero(frame, union netr_LogonLevel);
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if (logon == NULL) {
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TALLOC_FREE(frame);
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return NT_STATUS_NO_MEMORY;
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}
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if (workstation == NULL) {
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workstation = lp_netbios_name();
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}
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workstation_slash = talloc_asprintf(frame, "\\\\%s", workstation);
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if (workstation_slash == NULL) {
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TALLOC_FREE(frame);
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return NT_STATUS_NO_MEMORY;
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}
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/* Initialise input parameters */
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switch (logon_type) {
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case NetlogonInteractiveInformation: {
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struct netr_PasswordInfo *password_info;
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struct samr_Password lmpassword;
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struct samr_Password ntpassword;
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password_info = talloc_zero(frame, struct netr_PasswordInfo);
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if (password_info == NULL) {
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TALLOC_FREE(frame);
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return NT_STATUS_NO_MEMORY;
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}
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nt_lm_owf_gen(password, ntpassword.hash, lmpassword.hash);
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password_info->identity_info.domain_name.string = domain;
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password_info->identity_info.parameter_control = logon_parameters;
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password_info->identity_info.logon_id_low = 0xdead;
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password_info->identity_info.logon_id_high = 0xbeef;
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password_info->identity_info.account_name.string = username;
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password_info->identity_info.workstation.string = workstation_slash;
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password_info->lmpassword = lmpassword;
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password_info->ntpassword = ntpassword;
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logon->password = password_info;
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break;
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}
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case NetlogonNetworkInformation: {
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struct netr_NetworkInfo *network_info;
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uint8 chal[8];
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unsigned char local_lm_response[24];
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unsigned char local_nt_response[24];
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struct netr_ChallengeResponse lm;
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struct netr_ChallengeResponse nt;
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ZERO_STRUCT(lm);
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ZERO_STRUCT(nt);
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network_info = talloc_zero(frame, struct netr_NetworkInfo);
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if (network_info == NULL) {
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TALLOC_FREE(frame);
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return NT_STATUS_NO_MEMORY;
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}
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generate_random_buffer(chal, 8);
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SMBencrypt(password, chal, local_lm_response);
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SMBNTencrypt(password, chal, local_nt_response);
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lm.length = 24;
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lm.data = local_lm_response;
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nt.length = 24;
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nt.data = local_nt_response;
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network_info->identity_info.domain_name.string = domain;
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network_info->identity_info.parameter_control = logon_parameters;
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network_info->identity_info.logon_id_low = 0xdead;
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network_info->identity_info.logon_id_high = 0xbeef;
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network_info->identity_info.account_name.string = username;
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network_info->identity_info.workstation.string = workstation_slash;
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memcpy(network_info->challenge, chal, 8);
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network_info->nt = nt;
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network_info->lm = lm;
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logon->network = network_info;
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break;
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}
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default:
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DEBUG(0, ("switch value %d not supported\n",
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logon_type));
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TALLOC_FREE(frame);
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return NT_STATUS_INVALID_INFO_CLASS;
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}
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status = netlogon_creds_cli_LogonSamLogon(creds,
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binding_handle,
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logon_type,
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logon,
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frame,
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&validation_level,
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&validation,
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&authoritative,
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&flags);
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if (!NT_STATUS_IS_OK(status)) {
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TALLOC_FREE(frame);
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return status;
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}
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status = map_validation_to_info3(mem_ctx,
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validation_level, validation,
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info3);
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TALLOC_FREE(frame);
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if (!NT_STATUS_IS_OK(status)) {
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return status;
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}
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return NT_STATUS_OK;
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}
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/**
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* Logon domain user with an 'network' SAM logon
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*
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* @param info3 Pointer to a NET_USER_INFO_3 already allocated by the caller.
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**/
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NTSTATUS rpccli_netlogon_network_logon(struct netlogon_creds_cli_context *creds,
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struct dcerpc_binding_handle *binding_handle,
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TALLOC_CTX *mem_ctx,
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uint32_t logon_parameters,
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const char *username,
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const char *domain,
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const char *workstation,
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const uint8 chal[8],
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DATA_BLOB lm_response,
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DATA_BLOB nt_response,
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uint8_t *authoritative,
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uint32_t *flags,
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struct netr_SamInfo3 **info3)
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{
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NTSTATUS status;
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const char *workstation_name_slash;
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union netr_LogonLevel *logon = NULL;
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struct netr_NetworkInfo *network_info;
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uint16_t validation_level = 0;
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union netr_Validation *validation = NULL;
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uint8_t _authoritative = 0;
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uint32_t _flags = 0;
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struct netr_ChallengeResponse lm;
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struct netr_ChallengeResponse nt;
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*info3 = NULL;
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if (authoritative == NULL) {
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authoritative = &_authoritative;
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}
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if (flags == NULL) {
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flags = &_flags;
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}
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ZERO_STRUCT(lm);
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ZERO_STRUCT(nt);
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logon = talloc_zero(mem_ctx, union netr_LogonLevel);
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if (!logon) {
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return NT_STATUS_NO_MEMORY;
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}
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network_info = talloc_zero(mem_ctx, struct netr_NetworkInfo);
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if (!network_info) {
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return NT_STATUS_NO_MEMORY;
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}
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if (workstation[0] != '\\' && workstation[1] != '\\') {
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workstation_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", workstation);
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} else {
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workstation_name_slash = workstation;
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}
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if (!workstation_name_slash) {
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DEBUG(0, ("talloc_asprintf failed!\n"));
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return NT_STATUS_NO_MEMORY;
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}
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/* Initialise input parameters */
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lm.data = lm_response.data;
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lm.length = lm_response.length;
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nt.data = nt_response.data;
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nt.length = nt_response.length;
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network_info->identity_info.domain_name.string = domain;
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network_info->identity_info.parameter_control = logon_parameters;
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network_info->identity_info.logon_id_low = 0xdead;
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network_info->identity_info.logon_id_high = 0xbeef;
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network_info->identity_info.account_name.string = username;
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network_info->identity_info.workstation.string = workstation_name_slash;
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memcpy(network_info->challenge, chal, 8);
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network_info->nt = nt;
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network_info->lm = lm;
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logon->network = network_info;
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/* Marshall data and send request */
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status = netlogon_creds_cli_LogonSamLogon(creds,
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binding_handle,
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NetlogonNetworkInformation,
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logon,
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mem_ctx,
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&validation_level,
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&validation,
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authoritative,
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flags);
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if (!NT_STATUS_IS_OK(status)) {
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return status;
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}
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status = map_validation_to_info3(mem_ctx,
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validation_level, validation,
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info3);
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if (!NT_STATUS_IS_OK(status)) {
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return status;
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}
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return NT_STATUS_OK;
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}
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