mirror of
https://github.com/samba-team/samba.git
synced 2024-12-23 17:34:34 +03:00
270d721d36
Reviewed-by: Jelmer Vernooij <jelmer@samba.org>
669 lines
17 KiB
C
669 lines
17 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* Helper routines for net
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* Copyright (C) Volker Lendecke 2006
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* Copyright (C) Kai Blin 2008
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*
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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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*
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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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*
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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 "utils/net.h"
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#include "rpc_client/cli_pipe.h"
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#include "../librpc/gen_ndr/ndr_lsa_c.h"
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#include "rpc_client/cli_lsarpc.h"
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#include "../librpc/gen_ndr/ndr_dssetup_c.h"
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#include "secrets.h"
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#include "../libcli/security/security.h"
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#include "libsmb/libsmb.h"
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NTSTATUS net_rpc_lookup_name(struct net_context *c,
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TALLOC_CTX *mem_ctx, struct cli_state *cli,
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const char *name, const char **ret_domain,
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const char **ret_name, struct dom_sid *ret_sid,
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enum lsa_SidType *ret_type)
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{
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struct rpc_pipe_client *lsa_pipe = NULL;
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struct policy_handle pol;
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NTSTATUS status, result;
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const char **dom_names;
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struct dom_sid *sids;
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enum lsa_SidType *types;
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struct dcerpc_binding_handle *b;
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ZERO_STRUCT(pol);
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status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
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&lsa_pipe);
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if (!NT_STATUS_IS_OK(status)) {
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d_fprintf(stderr, _("Could not initialise lsa pipe\n"));
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return status;
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}
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b = lsa_pipe->binding_handle;
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status = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, false,
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SEC_FLAG_MAXIMUM_ALLOWED,
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&pol);
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if (!NT_STATUS_IS_OK(status)) {
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d_fprintf(stderr, "open_policy %s: %s\n", _("failed"),
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nt_errstr(status));
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return status;
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}
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status = rpccli_lsa_lookup_names(lsa_pipe, mem_ctx, &pol, 1,
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&name, &dom_names, 1, &sids, &types);
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if (!NT_STATUS_IS_OK(status)) {
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/* This can happen easily, don't log an error */
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goto done;
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}
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if (ret_domain != NULL) {
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*ret_domain = dom_names[0];
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}
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if (ret_name != NULL) {
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*ret_name = talloc_strdup(mem_ctx, name);
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}
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if (ret_sid != NULL) {
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sid_copy(ret_sid, &sids[0]);
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}
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if (ret_type != NULL) {
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*ret_type = types[0];
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}
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done:
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if (is_valid_policy_hnd(&pol)) {
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dcerpc_lsa_Close(b, mem_ctx, &pol, &result);
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}
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TALLOC_FREE(lsa_pipe);
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return status;
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}
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/****************************************************************************
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Connect to \\server\service.
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****************************************************************************/
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NTSTATUS connect_to_service(struct net_context *c,
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struct cli_state **cli_ctx,
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const struct sockaddr_storage *server_ss,
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const char *server_name,
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const char *service_name,
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const char *service_type)
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{
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NTSTATUS nt_status;
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int flags = 0;
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c->opt_password = net_prompt_pass(c, c->opt_user_name);
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if (c->opt_kerberos) {
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flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
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}
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if (c->opt_kerberos && c->opt_password) {
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flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
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}
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if (c->opt_ccache) {
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flags |= CLI_FULL_CONNECTION_USE_CCACHE;
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}
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nt_status = cli_full_connection(cli_ctx, NULL, server_name,
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server_ss, c->opt_port,
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service_name, service_type,
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c->opt_user_name, c->opt_workgroup,
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c->opt_password, flags,
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SMB_SIGNING_DEFAULT);
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if (!NT_STATUS_IS_OK(nt_status)) {
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d_fprintf(stderr, _("Could not connect to server %s\n"),
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server_name);
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/* Display a nicer message depending on the result */
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if (NT_STATUS_V(nt_status) ==
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NT_STATUS_V(NT_STATUS_LOGON_FAILURE))
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d_fprintf(stderr,
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_("The username or password was not "
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"correct.\n"));
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if (NT_STATUS_V(nt_status) ==
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NT_STATUS_V(NT_STATUS_ACCOUNT_LOCKED_OUT))
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d_fprintf(stderr, _("The account was locked out.\n"));
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if (NT_STATUS_V(nt_status) ==
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NT_STATUS_V(NT_STATUS_ACCOUNT_DISABLED))
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d_fprintf(stderr, _("The account was disabled.\n"));
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return nt_status;
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}
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if (c->smb_encrypt) {
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nt_status = cli_force_encryption(*cli_ctx,
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c->opt_user_name,
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c->opt_password,
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c->opt_workgroup);
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if (NT_STATUS_EQUAL(nt_status,NT_STATUS_NOT_SUPPORTED)) {
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d_printf(_("Encryption required and "
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"server that doesn't support "
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"UNIX extensions - failing connect\n"));
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} else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNKNOWN_REVISION)) {
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d_printf(_("Encryption required and "
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"can't get UNIX CIFS extensions "
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"version from server.\n"));
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} else if (NT_STATUS_EQUAL(nt_status,NT_STATUS_UNSUPPORTED_COMPRESSION)) {
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d_printf(_("Encryption required and "
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"share %s doesn't support "
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"encryption.\n"), service_name);
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} else if (!NT_STATUS_IS_OK(nt_status)) {
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d_printf(_("Encryption required and "
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"setup failed with error %s.\n"),
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nt_errstr(nt_status));
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}
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if (!NT_STATUS_IS_OK(nt_status)) {
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cli_shutdown(*cli_ctx);
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*cli_ctx = NULL;
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}
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}
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return nt_status;
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}
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/****************************************************************************
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Connect to \\server\ipc$.
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****************************************************************************/
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NTSTATUS connect_to_ipc(struct net_context *c,
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struct cli_state **cli_ctx,
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const struct sockaddr_storage *server_ss,
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const char *server_name)
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{
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return connect_to_service(c, cli_ctx, server_ss, server_name, "IPC$",
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"IPC");
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}
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/****************************************************************************
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Connect to \\server\ipc$ anonymously.
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****************************************************************************/
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NTSTATUS connect_to_ipc_anonymous(struct net_context *c,
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struct cli_state **cli_ctx,
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const struct sockaddr_storage *server_ss,
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const char *server_name)
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{
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NTSTATUS nt_status;
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nt_status = cli_full_connection(cli_ctx, c->opt_requester_name,
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server_name, server_ss, c->opt_port,
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"IPC$", "IPC",
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"", "",
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"", 0, SMB_SIGNING_DEFAULT);
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if (NT_STATUS_IS_OK(nt_status)) {
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return nt_status;
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} else {
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DEBUG(1,("Cannot connect to server (anonymously). Error was %s\n", nt_errstr(nt_status)));
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return nt_status;
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}
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}
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/**
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* Connect a server and open a given pipe
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*
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* @param cli_dst A cli_state
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* @param pipe The pipe to open
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* @param got_pipe boolean that stores if we got a pipe
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*
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* @return Normal NTSTATUS return.
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**/
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NTSTATUS connect_dst_pipe(struct net_context *c, struct cli_state **cli_dst,
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struct rpc_pipe_client **pp_pipe_hnd,
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const struct ndr_syntax_id *interface)
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{
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NTSTATUS nt_status;
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char *server_name = SMB_STRDUP("127.0.0.1");
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struct cli_state *cli_tmp = NULL;
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struct rpc_pipe_client *pipe_hnd = NULL;
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if (server_name == NULL) {
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return NT_STATUS_NO_MEMORY;
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}
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if (c->opt_destination) {
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SAFE_FREE(server_name);
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if ((server_name = SMB_STRDUP(c->opt_destination)) == NULL) {
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return NT_STATUS_NO_MEMORY;
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}
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}
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/* make a connection to a named pipe */
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nt_status = connect_to_ipc(c, &cli_tmp, NULL, server_name);
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if (!NT_STATUS_IS_OK(nt_status)) {
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SAFE_FREE(server_name);
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return nt_status;
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}
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nt_status = cli_rpc_pipe_open_noauth(cli_tmp, interface,
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&pipe_hnd);
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if (!NT_STATUS_IS_OK(nt_status)) {
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DEBUG(0, ("couldn't not initialize pipe\n"));
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cli_shutdown(cli_tmp);
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SAFE_FREE(server_name);
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return nt_status;
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}
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*cli_dst = cli_tmp;
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*pp_pipe_hnd = pipe_hnd;
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SAFE_FREE(server_name);
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return nt_status;
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}
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/****************************************************************************
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Use the local machine account (krb) and password for this session.
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****************************************************************************/
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int net_use_krb_machine_account(struct net_context *c)
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{
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char *user_name = NULL;
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if (!secrets_init()) {
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d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
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exit(1);
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}
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c->opt_password = secrets_fetch_machine_password(
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c->opt_target_workgroup, NULL, NULL);
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if (asprintf(&user_name, "%s$@%s", lp_netbios_name(), lp_realm()) == -1) {
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return -1;
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}
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c->opt_user_name = user_name;
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return 0;
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}
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/****************************************************************************
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Use the machine account name and password for this session.
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****************************************************************************/
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int net_use_machine_account(struct net_context *c)
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{
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char *user_name = NULL;
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if (!secrets_init()) {
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d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
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exit(1);
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}
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c->opt_password = secrets_fetch_machine_password(
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c->opt_target_workgroup, NULL, NULL);
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if (asprintf(&user_name, "%s$", lp_netbios_name()) == -1) {
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return -1;
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}
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c->opt_user_name = user_name;
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return 0;
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}
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bool net_find_server(struct net_context *c,
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const char *domain,
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unsigned flags,
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struct sockaddr_storage *server_ss,
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char **server_name)
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{
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const char *d = domain ? domain : c->opt_target_workgroup;
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if (c->opt_host) {
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*server_name = SMB_STRDUP(c->opt_host);
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}
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if (c->opt_have_ip) {
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*server_ss = c->opt_dest_ip;
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if (!*server_name) {
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char addr[INET6_ADDRSTRLEN];
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print_sockaddr(addr, sizeof(addr), &c->opt_dest_ip);
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*server_name = SMB_STRDUP(addr);
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}
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} else if (*server_name) {
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/* resolve the IP address */
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if (!resolve_name(*server_name, server_ss, 0x20, false)) {
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DEBUG(1,("Unable to resolve server name\n"));
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return false;
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}
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} else if (flags & NET_FLAGS_PDC) {
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fstring dc_name;
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struct sockaddr_storage pdc_ss;
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if (!get_pdc_ip(d, &pdc_ss)) {
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DEBUG(1,("Unable to resolve PDC server address\n"));
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return false;
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}
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if (is_zero_addr(&pdc_ss)) {
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return false;
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}
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if (!name_status_find(d, 0x1b, 0x20, &pdc_ss, dc_name)) {
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return false;
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}
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*server_name = SMB_STRDUP(dc_name);
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*server_ss = pdc_ss;
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} else if (flags & NET_FLAGS_DMB) {
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struct sockaddr_storage msbrow_ss;
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char addr[INET6_ADDRSTRLEN];
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/* if (!resolve_name(MSBROWSE, &msbrow_ip, 1, false)) */
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if (!resolve_name(d, &msbrow_ss, 0x1B, false)) {
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DEBUG(1,("Unable to resolve domain browser via name lookup\n"));
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return false;
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}
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*server_ss = msbrow_ss;
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print_sockaddr(addr, sizeof(addr), server_ss);
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*server_name = SMB_STRDUP(addr);
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} else if (flags & NET_FLAGS_MASTER) {
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struct sockaddr_storage brow_ss;
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char addr[INET6_ADDRSTRLEN];
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if (!resolve_name(d, &brow_ss, 0x1D, false)) {
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/* go looking for workgroups */
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DEBUG(1,("Unable to resolve master browser via name lookup\n"));
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return false;
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}
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*server_ss = brow_ss;
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print_sockaddr(addr, sizeof(addr), server_ss);
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*server_name = SMB_STRDUP(addr);
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} else if (!(flags & NET_FLAGS_LOCALHOST_DEFAULT_INSANE)) {
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if (!interpret_string_addr(server_ss,
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"127.0.0.1", AI_NUMERICHOST)) {
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DEBUG(1,("Unable to resolve 127.0.0.1\n"));
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return false;
|
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}
|
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*server_name = SMB_STRDUP("127.0.0.1");
|
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}
|
|
|
|
if (!*server_name) {
|
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DEBUG(1,("no server to connect to\n"));
|
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return false;
|
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}
|
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|
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return true;
|
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}
|
|
|
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bool net_find_pdc(struct sockaddr_storage *server_ss,
|
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fstring server_name,
|
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const char *domain_name)
|
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{
|
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if (!get_pdc_ip(domain_name, server_ss)) {
|
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return false;
|
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}
|
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if (is_zero_addr(server_ss)) {
|
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return false;
|
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}
|
|
|
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if (!name_status_find(domain_name, 0x1b, 0x20, server_ss, server_name)) {
|
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return false;
|
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}
|
|
|
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return true;
|
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}
|
|
|
|
NTSTATUS net_make_ipc_connection(struct net_context *c, unsigned flags,
|
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struct cli_state **pcli)
|
|
{
|
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return net_make_ipc_connection_ex(c, c->opt_workgroup, NULL, NULL, flags, pcli);
|
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}
|
|
|
|
NTSTATUS net_make_ipc_connection_ex(struct net_context *c ,const char *domain,
|
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const char *server,
|
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const struct sockaddr_storage *pss,
|
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unsigned flags, struct cli_state **pcli)
|
|
{
|
|
char *server_name = NULL;
|
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struct sockaddr_storage server_ss;
|
|
struct cli_state *cli = NULL;
|
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NTSTATUS nt_status;
|
|
|
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if ( !server || !pss ) {
|
|
if (!net_find_server(c, domain, flags, &server_ss,
|
|
&server_name)) {
|
|
d_fprintf(stderr, _("Unable to find a suitable server "
|
|
"for domain %s\n"), domain);
|
|
nt_status = NT_STATUS_UNSUCCESSFUL;
|
|
goto done;
|
|
}
|
|
} else {
|
|
server_name = SMB_STRDUP( server );
|
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server_ss = *pss;
|
|
}
|
|
|
|
if (flags & NET_FLAGS_ANONYMOUS) {
|
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nt_status = connect_to_ipc_anonymous(c, &cli, &server_ss,
|
|
server_name);
|
|
} else {
|
|
nt_status = connect_to_ipc(c, &cli, &server_ss,
|
|
server_name);
|
|
}
|
|
|
|
/* store the server in the affinity cache if it was a PDC */
|
|
|
|
if ( (flags & NET_FLAGS_PDC) && NT_STATUS_IS_OK(nt_status) )
|
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saf_store(cli->server_domain, server_name);
|
|
|
|
SAFE_FREE(server_name);
|
|
if (!NT_STATUS_IS_OK(nt_status)) {
|
|
d_fprintf(stderr, _("Connection failed: %s\n"),
|
|
nt_errstr(nt_status));
|
|
cli = NULL;
|
|
} else if (c->opt_request_timeout) {
|
|
cli_set_timeout(cli, c->opt_request_timeout * 1000);
|
|
}
|
|
|
|
done:
|
|
if (pcli != NULL) {
|
|
*pcli = cli;
|
|
}
|
|
return nt_status;
|
|
}
|
|
|
|
/****************************************************************************
|
|
****************************************************************************/
|
|
|
|
const char *net_prompt_pass(struct net_context *c, const char *user)
|
|
{
|
|
char *prompt = NULL;
|
|
char pwd[256] = {0};
|
|
int rc;
|
|
|
|
if (c->opt_password) {
|
|
return c->opt_password;
|
|
}
|
|
|
|
if (c->opt_machine_pass) {
|
|
return NULL;
|
|
}
|
|
|
|
if (c->opt_kerberos && !c->opt_user_specified) {
|
|
return NULL;
|
|
}
|
|
|
|
if (asprintf(&prompt, _("Enter %s's password:"), user) == -1) {
|
|
return NULL;
|
|
}
|
|
|
|
rc = samba_getpass(prompt, pwd, sizeof(pwd), false, false);
|
|
SAFE_FREE(prompt);
|
|
if (rc < 0) {
|
|
return NULL;
|
|
}
|
|
|
|
return SMB_STRDUP(pwd);
|
|
}
|
|
|
|
int net_run_function(struct net_context *c, int argc, const char **argv,
|
|
const char *whoami, struct functable *table)
|
|
{
|
|
int i;
|
|
|
|
if (argc != 0) {
|
|
for (i=0; table[i].funcname != NULL; i++) {
|
|
if (strcasecmp_m(argv[0], table[i].funcname) == 0)
|
|
return table[i].fn(c, argc-1, argv+1);
|
|
}
|
|
}
|
|
|
|
if (c->display_usage == false) {
|
|
d_fprintf(stderr, _("Invalid command: %s %s\n"), whoami,
|
|
(argc > 0)?argv[0]:"");
|
|
}
|
|
d_printf(_("Usage:\n"));
|
|
for (i=0; table[i].funcname != NULL; i++) {
|
|
if(c->display_usage == false)
|
|
d_printf("%s %-15s %s\n", whoami, table[i].funcname,
|
|
_(table[i].description));
|
|
else
|
|
d_printf("%s\n", _(table[i].usage));
|
|
}
|
|
|
|
return c->display_usage?0:-1;
|
|
}
|
|
|
|
void net_display_usage_from_functable(struct functable *table)
|
|
{
|
|
int i;
|
|
for (i=0; table[i].funcname != NULL; i++) {
|
|
d_printf("%s\n", _(table[i].usage));
|
|
}
|
|
}
|
|
|
|
const char *net_share_type_str(int num_type)
|
|
{
|
|
switch(num_type) {
|
|
case 0: return _("Disk");
|
|
case 1: return _("Print");
|
|
case 2: return _("Dev");
|
|
case 3: return _("IPC");
|
|
default: return _("Unknown");
|
|
}
|
|
}
|
|
|
|
static NTSTATUS net_scan_dc_noad(struct net_context *c,
|
|
struct cli_state *cli,
|
|
struct net_dc_info *dc_info)
|
|
{
|
|
TALLOC_CTX *mem_ctx = talloc_tos();
|
|
struct rpc_pipe_client *pipe_hnd = NULL;
|
|
struct dcerpc_binding_handle *b;
|
|
NTSTATUS status, result;
|
|
struct policy_handle pol;
|
|
union lsa_PolicyInformation *info;
|
|
|
|
ZERO_STRUCTP(dc_info);
|
|
ZERO_STRUCT(pol);
|
|
|
|
status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
|
|
&pipe_hnd);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
return status;
|
|
}
|
|
|
|
b = pipe_hnd->binding_handle;
|
|
|
|
status = dcerpc_lsa_open_policy(b, mem_ctx,
|
|
false,
|
|
SEC_FLAG_MAXIMUM_ALLOWED,
|
|
&pol,
|
|
&result);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
goto done;
|
|
}
|
|
if (!NT_STATUS_IS_OK(result)) {
|
|
status = result;
|
|
goto done;
|
|
}
|
|
|
|
status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
|
|
&pol,
|
|
LSA_POLICY_INFO_ACCOUNT_DOMAIN,
|
|
&info,
|
|
&result);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
goto done;
|
|
}
|
|
if (!NT_STATUS_IS_OK(result)) {
|
|
status = result;
|
|
goto done;
|
|
}
|
|
|
|
dc_info->netbios_domain_name = talloc_strdup(mem_ctx, info->account_domain.name.string);
|
|
if (dc_info->netbios_domain_name == NULL) {
|
|
status = NT_STATUS_NO_MEMORY;
|
|
goto done;
|
|
}
|
|
|
|
done:
|
|
if (is_valid_policy_hnd(&pol)) {
|
|
dcerpc_lsa_Close(b, mem_ctx, &pol, &result);
|
|
}
|
|
|
|
TALLOC_FREE(pipe_hnd);
|
|
|
|
return status;
|
|
}
|
|
|
|
NTSTATUS net_scan_dc(struct net_context *c,
|
|
struct cli_state *cli,
|
|
struct net_dc_info *dc_info)
|
|
{
|
|
TALLOC_CTX *mem_ctx = talloc_tos();
|
|
struct rpc_pipe_client *dssetup_pipe = NULL;
|
|
struct dcerpc_binding_handle *dssetup_handle = NULL;
|
|
union dssetup_DsRoleInfo info;
|
|
NTSTATUS status;
|
|
WERROR werr;
|
|
|
|
ZERO_STRUCTP(dc_info);
|
|
|
|
status = cli_rpc_pipe_open_noauth(cli, &ndr_table_dssetup.syntax_id,
|
|
&dssetup_pipe);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(10,("net_scan_dc: failed to open dssetup pipe with %s, "
|
|
"retrying with lsa pipe\n", nt_errstr(status)));
|
|
return net_scan_dc_noad(c, cli, dc_info);
|
|
}
|
|
dssetup_handle = dssetup_pipe->binding_handle;
|
|
|
|
status = dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(dssetup_handle, mem_ctx,
|
|
DS_ROLE_BASIC_INFORMATION,
|
|
&info,
|
|
&werr);
|
|
TALLOC_FREE(dssetup_pipe);
|
|
|
|
if (NT_STATUS_IS_OK(status)) {
|
|
status = werror_to_ntstatus(werr);
|
|
}
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
return status;
|
|
}
|
|
|
|
dc_info->is_dc = (info.basic.role & (DS_ROLE_PRIMARY_DC|DS_ROLE_BACKUP_DC));
|
|
dc_info->is_pdc = (info.basic.role & DS_ROLE_PRIMARY_DC);
|
|
dc_info->is_ad = (info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING);
|
|
dc_info->is_mixed_mode = (info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE);
|
|
dc_info->netbios_domain_name = talloc_strdup(mem_ctx, info.basic.domain);
|
|
dc_info->dns_domain_name = talloc_strdup(mem_ctx, info.basic.dns_domain);
|
|
dc_info->forest_name = talloc_strdup(mem_ctx, info.basic.forest);
|
|
|
|
return NT_STATUS_OK;
|
|
}
|