Unix SMB/CIFS implementation.
SMB client password change routine
Copyright (C) Andrew Tridgell 1994-1998
-
+
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 "../librpc/gen_ndr/ndr_samr.h"
+#include "rpc_client/cli_pipe.h"
+#include "rpc_client/cli_samr.h"
+#include "libsmb/libsmb.h"
+#include "libsmb/clirap.h"
+#include "libsmb/nmblib.h"
+#include "../libcli/smb/smbXcli_base.h"
/*************************************************************
Change a password on a remote machine using IPC calls.
*************************************************************/
NTSTATUS remote_password_change(const char *remote_machine, const char *user_name,
- const char *old_passwd, const char *new_passwd,
- char *err_str, size_t err_str_len)
+ const char *old_passwd, const char *new_passwd,
+ char **err_str)
{
- struct nmb_name calling, called;
- struct cli_state *cli;
- struct rpc_pipe_client *pipe_hnd;
- struct sockaddr_storage ss;
-
+ struct cli_state *cli = NULL;
+ struct cli_credentials *creds = NULL;
+ struct rpc_pipe_client *pipe_hnd = NULL;
NTSTATUS result;
bool pass_must_change = False;
- *err_str = '\0';
-
- if(!resolve_name( remote_machine, &ss, 0x20)) {
- slprintf(err_str, err_str_len-1, "Unable to find an IP address for machine %s.\n",
- remote_machine );
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- cli = cli_initialise();
- if (!cli) {
- return NT_STATUS_NO_MEMORY;
- }
+ *err_str = NULL;
- result = cli_connect(cli, remote_machine, &ss);
+ result = cli_connect_nb(remote_machine, NULL, 0, 0x20, NULL,
+ SMB_SIGNING_IPC_DEFAULT, 0, &cli);
if (!NT_STATUS_IS_OK(result)) {
- slprintf(err_str, err_str_len-1, "Unable to connect to SMB server on machine %s. Error was : %s.\n",
- remote_machine, nt_errstr(result) );
- cli_shutdown(cli);
- return result;
- }
-
- make_nmb_name(&calling, global_myname() , 0x0);
- make_nmb_name(&called , remote_machine, 0x20);
-
- if (!cli_session_request(cli, &calling, &called)) {
- slprintf(err_str, err_str_len-1, "machine %s rejected the session setup. Error was : %s.\n",
- remote_machine, cli_errstr(cli) );
- result = cli_nt_error(cli);
- cli_shutdown(cli);
+ if (asprintf(err_str, "Unable to connect to SMB server on "
+ "machine %s. Error was : %s.\n",
+ remote_machine, nt_errstr(result))==-1) {
+ *err_str = NULL;
+ }
return result;
}
-
- cli->protocol = PROTOCOL_NT1;
- if (!cli_negprot(cli)) {
- slprintf(err_str, err_str_len-1, "machine %s rejected the negotiate protocol. Error was : %s.\n",
- remote_machine, cli_errstr(cli) );
- result = cli_nt_error(cli);
+ creds = cli_session_creds_init(cli,
+ user_name,
+ NULL, /* domain */
+ NULL, /* realm */
+ old_passwd,
+ false, /* use_kerberos */
+ false, /* fallback_after_kerberos */
+ false, /* use_ccache */
+ false); /* password_is_nt_hash */
+ SMB_ASSERT(creds != NULL);
+
+ result = smbXcli_negprot(cli->conn, cli->timeout,
+ lp_client_ipc_min_protocol(),
+ lp_client_ipc_max_protocol());
+
+ if (!NT_STATUS_IS_OK(result)) {
+ if (asprintf(err_str, "machine %s rejected the negotiate "
+ "protocol. Error was : %s.\n",
+ remote_machine, nt_errstr(result)) == -1) {
+ *err_str = NULL;
+ }
cli_shutdown(cli);
return result;
}
-
+
/* Given things like SMB signing, restrict anonymous and the like,
try an authenticated connection first */
- result = cli_session_setup(cli, user_name,
- old_passwd, strlen(old_passwd)+1,
- old_passwd, strlen(old_passwd)+1, "");
+ result = cli_session_setup_creds(cli, creds);
if (!NT_STATUS_IS_OK(result)) {
if (!NT_STATUS_EQUAL(result, NT_STATUS_PASSWORD_MUST_CHANGE) &&
!NT_STATUS_EQUAL(result, NT_STATUS_PASSWORD_EXPIRED)) {
- slprintf(err_str, err_str_len-1, "Could not "
- "connect to machine %s: %s\n",
- remote_machine, cli_errstr(cli));
+ if (asprintf(err_str, "Could not connect to machine %s: "
+ "%s\n", remote_machine, nt_errstr(result)) == -1) {
+ *err_str = NULL;
+ }
cli_shutdown(cli);
return result;
}
* Thanks to <Nicholas.S.Jenkins@cdc.com> for this fix.
*/
- result = cli_session_setup(cli, "", "", 0, "", 0, "");
+ result = cli_session_setup_anon(cli);
if (!NT_STATUS_IS_OK(result)) {
- slprintf(err_str, err_str_len-1, "machine %s rejected the session setup. Error was : %s.\n",
- remote_machine, cli_errstr(cli) );
+ if (asprintf(err_str, "machine %s rejected the session "
+ "setup. Error was : %s.\n",
+ remote_machine, nt_errstr(result)) == -1) {
+ *err_str = NULL;
+ }
cli_shutdown(cli);
return result;
}
-
- cli_init_creds(cli, "", "", NULL);
- } else {
- cli_init_creds(cli, user_name, "", old_passwd);
}
- if (!cli_send_tconX(cli, "IPC$", "IPC", "", 1)) {
- slprintf(err_str, err_str_len-1, "machine %s rejected the tconX on the IPC$ share. Error was : %s.\n",
- remote_machine, cli_errstr(cli) );
- result = cli_nt_error(cli);
+ result = cli_tree_connect(cli, "IPC$", "IPC", NULL);
+ if (!NT_STATUS_IS_OK(result)) {
+ if (asprintf(err_str, "machine %s rejected the tconX on the "
+ "IPC$ share. Error was : %s.\n",
+ remote_machine, nt_errstr(result))) {
+ *err_str = NULL;
+ }
cli_shutdown(cli);
return result;
}
/* Try not to give the password away too easily */
if (!pass_must_change) {
- pipe_hnd = cli_rpc_pipe_open_ntlmssp(cli,
- PI_SAMR,
- PIPE_AUTH_LEVEL_PRIVACY,
- "", /* what domain... ? */
- user_name,
- old_passwd,
- &result);
+ result = cli_rpc_pipe_open_with_creds(cli,
+ &ndr_table_samr,
+ NCACN_NP,
+ DCERPC_AUTH_TYPE_NTLMSSP,
+ DCERPC_AUTH_LEVEL_PRIVACY,
+ remote_machine,
+ creds,
+ &pipe_hnd);
} else {
/*
* If the user password must be changed the ntlmssp bind will
* will just fail. So we do it anonymously, there's no other
* way.
*/
- pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &result);
+ result = cli_rpc_pipe_open_noauth(
+ cli, &ndr_table_samr, &pipe_hnd);
}
- if (!pipe_hnd) {
+ if (!NT_STATUS_IS_OK(result)) {
if (lp_client_lanman_auth()) {
/* Use the old RAP method. */
if (!cli_oem_change_password(cli, user_name, new_passwd, old_passwd)) {
- slprintf(err_str, err_str_len-1, "machine %s rejected the password change: Error was : %s.\n",
- remote_machine, cli_errstr(cli) );
result = cli_nt_error(cli);
+ if (asprintf(err_str, "machine %s rejected the "
+ "password change: Error was : %s.\n",
+ remote_machine, nt_errstr(result)) == -1) {
+ *err_str = NULL;
+ }
cli_shutdown(cli);
return result;
}
} else {
- slprintf(err_str, err_str_len-1,
- "SAMR connection to machine %s failed. Error was %s, "
- "but LANMAN password changed are disabled\n",
- nt_errstr(result), remote_machine);
- result = cli_nt_error(cli);
+ if (asprintf(err_str, "SAMR connection to machine %s "
+ "failed. Error was %s, but LANMAN password "
+ "changes are disabled\n",
+ remote_machine, nt_errstr(result)) == -1) {
+ *err_str = NULL;
+ }
cli_shutdown(cli);
return result;
}
}
- if (NT_STATUS_IS_OK(result = rpccli_samr_chgpasswd_user(pipe_hnd, cli->mem_ctx, user_name,
- new_passwd, old_passwd))) {
+ result = rpccli_samr_chgpasswd_user2(pipe_hnd, talloc_tos(),
+ user_name, new_passwd, old_passwd);
+ if (NT_STATUS_IS_OK(result)) {
/* Great - it all worked! */
cli_shutdown(cli);
return NT_STATUS_OK;
} else if (!(NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)
|| NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL))) {
/* it failed, but for reasons such as wrong password, too short etc ... */
-
- slprintf(err_str, err_str_len-1, "machine %s rejected the password change: Error was : %s.\n",
- remote_machine, get_friendly_nt_error_msg(result));
+
+ if (asprintf(err_str, "machine %s rejected the password change: "
+ "Error was : %s.\n",
+ remote_machine, get_friendly_nt_error_msg(result)) == -1) {
+ *err_str = NULL;
+ }
cli_shutdown(cli);
return result;
}
/* OK, that failed, so try again... */
- cli_rpc_pipe_close(pipe_hnd);
-
+ TALLOC_FREE(pipe_hnd);
+
/* Try anonymous NTLMSSP... */
- cli_init_creds(cli, "", "", NULL);
-
result = NT_STATUS_UNSUCCESSFUL;
-
+
/* OK, this is ugly, but... try an anonymous pipe. */
- pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SAMR, &result);
-
- if ( pipe_hnd &&
- (NT_STATUS_IS_OK(result = rpccli_samr_chgpasswd_user(pipe_hnd,
- cli->mem_ctx,
- user_name,
- new_passwd,
- old_passwd)))) {
+ result = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr,
+ &pipe_hnd);
+
+ if ( NT_STATUS_IS_OK(result) &&
+ (NT_STATUS_IS_OK(result = rpccli_samr_chgpasswd_user2(
+ pipe_hnd, talloc_tos(), user_name,
+ new_passwd, old_passwd)))) {
/* Great - it all worked! */
cli_shutdown(cli);
return NT_STATUS_OK;
|| NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL))) {
/* it failed, but again it was due to things like new password too short */
- slprintf(err_str, err_str_len-1,
- "machine %s rejected the (anonymous) password change: Error was : %s.\n",
- remote_machine, get_friendly_nt_error_msg(result));
+ if (asprintf(err_str, "machine %s rejected the "
+ "(anonymous) password change: Error was : "
+ "%s.\n", remote_machine,
+ get_friendly_nt_error_msg(result)) == -1) {
+ *err_str = NULL;
+ }
cli_shutdown(cli);
return result;
}
-
+
/* We have failed to change the user's password, and we think the server
just might not support SAMR password changes, so fall back */
-
+
if (lp_client_lanman_auth()) {
/* Use the old RAP method. */
if (cli_oem_change_password(cli, user_name, new_passwd, old_passwd)) {
cli_shutdown(cli);
return NT_STATUS_OK;
}
- slprintf(err_str, err_str_len-1,
- "machine %s rejected the password change: Error was : %s.\n",
- remote_machine, cli_errstr(cli) );
+
result = cli_nt_error(cli);
+ if (asprintf(err_str, "machine %s rejected the password "
+ "change: Error was : %s.\n",
+ remote_machine, nt_errstr(result)) == -1) {
+ *err_str = NULL;
+ }
cli_shutdown(cli);
return result;
} else {
- slprintf(err_str, err_str_len-1,
- "SAMR connection to machine %s failed. Error was %s, "
- "but LANMAN password changed are disabled\n",
- nt_errstr(result), remote_machine);
+ if (asprintf(err_str, "SAMR connection to machine %s "
+ "failed. Error was %s, but LANMAN password "
+ "changes are disabled\n",
+ remote_machine, nt_errstr(result)) == -1) {
+ *err_str = NULL;
+ }
cli_shutdown(cli);
return NT_STATUS_UNSUCCESSFUL;
}
git.samba.org / metze / samba / wip.git / blobdiff