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samba-mirror/source3/libnet/libnet_join.c
Andrew Bartlett f768b32e37 libcli/security Provide a common, top level libcli/security/security.h
This will reduce the noise from merges of the rest of the
libcli/security code, without this commit changing what code
is actually used.

This includes (along with other security headers) dom_sid.h and
security_token.h

Andrew Bartlett

Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Tue Oct 12 05:54:10 UTC 2010 on sn-devel-104
2010-10-12 05:54:10 +00:00

2185 lines
53 KiB
C

/*
* Unix SMB/CIFS implementation.
* libnet Join Support
* Copyright (C) Gerald (Jerry) Carter 2006
* Copyright (C) Guenther Deschner 2007-2008
*
* 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 "ads.h"
#include "librpc/gen_ndr/ndr_libnet_join.h"
#include "libnet/libnet_join.h"
#include "libcli/auth/libcli_auth.h"
#include "../librpc/gen_ndr/cli_samr.h"
#include "rpc_client/init_samr.h"
#include "../librpc/gen_ndr/cli_lsa.h"
#include "rpc_client/cli_lsarpc.h"
#include "../librpc/gen_ndr/cli_netlogon.h"
#include "rpc_client/cli_netlogon.h"
#include "lib/smbconf/smbconf.h"
#include "lib/smbconf/smbconf_reg.h"
#include "../libds/common/flags.h"
#include "secrets.h"
#include "rpc_client/init_lsa.h"
#include "krb5_env.h"
#include "../libcli/security/security.h"
/****************************************************************
****************************************************************/
#define LIBNET_JOIN_DUMP_CTX(ctx, r, f) \
do { \
char *str = NULL; \
str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_JoinCtx, f, r); \
DEBUG(1,("libnet_Join:\n%s", str)); \
TALLOC_FREE(str); \
} while (0)
#define LIBNET_JOIN_IN_DUMP_CTX(ctx, r) \
LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
#define LIBNET_JOIN_OUT_DUMP_CTX(ctx, r) \
LIBNET_JOIN_DUMP_CTX(ctx, r, NDR_OUT)
#define LIBNET_UNJOIN_DUMP_CTX(ctx, r, f) \
do { \
char *str = NULL; \
str = NDR_PRINT_FUNCTION_STRING(ctx, libnet_UnjoinCtx, f, r); \
DEBUG(1,("libnet_Unjoin:\n%s", str)); \
TALLOC_FREE(str); \
} while (0)
#define LIBNET_UNJOIN_IN_DUMP_CTX(ctx, r) \
LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_IN | NDR_SET_VALUES)
#define LIBNET_UNJOIN_OUT_DUMP_CTX(ctx, r) \
LIBNET_UNJOIN_DUMP_CTX(ctx, r, NDR_OUT)
/****************************************************************
****************************************************************/
static void libnet_join_set_error_string(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r,
const char *format, ...)
{
va_list args;
if (r->out.error_string) {
return;
}
va_start(args, format);
r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
va_end(args);
}
/****************************************************************
****************************************************************/
static void libnet_unjoin_set_error_string(TALLOC_CTX *mem_ctx,
struct libnet_UnjoinCtx *r,
const char *format, ...)
{
va_list args;
if (r->out.error_string) {
return;
}
va_start(args, format);
r->out.error_string = talloc_vasprintf(mem_ctx, format, args);
va_end(args);
}
#ifdef WITH_ADS
/****************************************************************
****************************************************************/
static ADS_STATUS libnet_connect_ads(const char *dns_domain_name,
const char *netbios_domain_name,
const char *dc_name,
const char *user_name,
const char *password,
ADS_STRUCT **ads)
{
ADS_STATUS status;
ADS_STRUCT *my_ads = NULL;
char *cp;
my_ads = ads_init(dns_domain_name,
netbios_domain_name,
dc_name);
if (!my_ads) {
return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
}
if (user_name) {
SAFE_FREE(my_ads->auth.user_name);
my_ads->auth.user_name = SMB_STRDUP(user_name);
if ((cp = strchr_m(my_ads->auth.user_name, '@'))!=0) {
*cp++ = '\0';
SAFE_FREE(my_ads->auth.realm);
my_ads->auth.realm = smb_xstrdup(cp);
strupper_m(my_ads->auth.realm);
}
}
if (password) {
SAFE_FREE(my_ads->auth.password);
my_ads->auth.password = SMB_STRDUP(password);
}
status = ads_connect_user_creds(my_ads);
if (!ADS_ERR_OK(status)) {
ads_destroy(&my_ads);
return status;
}
*ads = my_ads;
return ADS_SUCCESS;
}
/****************************************************************
****************************************************************/
static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
ADS_STATUS status;
status = libnet_connect_ads(r->out.dns_domain_name,
r->out.netbios_domain_name,
r->in.dc_name,
r->in.admin_account,
r->in.admin_password,
&r->in.ads);
if (!ADS_ERR_OK(status)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to connect to AD: %s",
ads_errstr(status));
return status;
}
if (!r->out.netbios_domain_name) {
r->out.netbios_domain_name = talloc_strdup(mem_ctx,
r->in.ads->server.workgroup);
ADS_ERROR_HAVE_NO_MEMORY(r->out.netbios_domain_name);
}
if (!r->out.dns_domain_name) {
r->out.dns_domain_name = talloc_strdup(mem_ctx,
r->in.ads->config.realm);
ADS_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
}
r->out.domain_is_ad = true;
return ADS_SUCCESS;
}
/****************************************************************
****************************************************************/
static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx,
struct libnet_UnjoinCtx *r)
{
ADS_STATUS status;
status = libnet_connect_ads(r->in.domain_name,
r->in.domain_name,
r->in.dc_name,
r->in.admin_account,
r->in.admin_password,
&r->in.ads);
if (!ADS_ERR_OK(status)) {
libnet_unjoin_set_error_string(mem_ctx, r,
"failed to connect to AD: %s",
ads_errstr(status));
}
return status;
}
/****************************************************************
join a domain using ADS (LDAP mods)
****************************************************************/
static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
ADS_STATUS status;
LDAPMessage *res = NULL;
const char *attrs[] = { "dn", NULL };
bool moved = false;
status = ads_check_ou_dn(mem_ctx, r->in.ads, &r->in.account_ou);
if (!ADS_ERR_OK(status)) {
return status;
}
status = ads_search_dn(r->in.ads, &res, r->in.account_ou, attrs);
if (!ADS_ERR_OK(status)) {
return status;
}
if (ads_count_replies(r->in.ads, res) != 1) {
ads_msgfree(r->in.ads, res);
return ADS_ERROR_LDAP(LDAP_NO_SUCH_OBJECT);
}
ads_msgfree(r->in.ads, res);
/* Attempt to create the machine account and bail if this fails.
Assume that the admin wants exactly what they requested */
status = ads_create_machine_acct(r->in.ads,
r->in.machine_name,
r->in.account_ou);
if (ADS_ERR_OK(status)) {
DEBUG(1,("machine account creation created\n"));
return status;
} else if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
(status.err.rc == LDAP_ALREADY_EXISTS)) {
status = ADS_SUCCESS;
}
if (!ADS_ERR_OK(status)) {
DEBUG(1,("machine account creation failed\n"));
return status;
}
status = ads_move_machine_acct(r->in.ads,
r->in.machine_name,
r->in.account_ou,
&moved);
if (!ADS_ERR_OK(status)) {
DEBUG(1,("failure to locate/move pre-existing "
"machine account\n"));
return status;
}
DEBUG(1,("The machine account %s the specified OU.\n",
moved ? "was moved into" : "already exists in"));
return status;
}
/****************************************************************
****************************************************************/
static ADS_STATUS libnet_unjoin_remove_machine_acct(TALLOC_CTX *mem_ctx,
struct libnet_UnjoinCtx *r)
{
ADS_STATUS status;
if (!r->in.ads) {
status = libnet_unjoin_connect_ads(mem_ctx, r);
if (!ADS_ERR_OK(status)) {
libnet_unjoin_set_error_string(mem_ctx, r,
"failed to connect to AD: %s",
ads_errstr(status));
return status;
}
}
status = ads_leave_realm(r->in.ads, r->in.machine_name);
if (!ADS_ERR_OK(status)) {
libnet_unjoin_set_error_string(mem_ctx, r,
"failed to leave realm: %s",
ads_errstr(status));
return status;
}
return ADS_SUCCESS;
}
/****************************************************************
****************************************************************/
static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
ADS_STATUS status;
LDAPMessage *res = NULL;
char *dn = NULL;
if (!r->in.machine_name) {
return ADS_ERROR(LDAP_NO_MEMORY);
}
status = ads_find_machine_acct(r->in.ads,
&res,
r->in.machine_name);
if (!ADS_ERR_OK(status)) {
return status;
}
if (ads_count_replies(r->in.ads, res) != 1) {
status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
goto done;
}
dn = ads_get_dn(r->in.ads, mem_ctx, res);
if (!dn) {
status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
goto done;
}
r->out.dn = talloc_strdup(mem_ctx, dn);
if (!r->out.dn) {
status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
goto done;
}
done:
ads_msgfree(r->in.ads, res);
TALLOC_FREE(dn);
return status;
}
/****************************************************************
Set a machines dNSHostName and servicePrincipalName attributes
****************************************************************/
static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
ADS_STATUS status;
ADS_MODLIST mods;
fstring my_fqdn;
const char *spn_array[3] = {NULL, NULL, NULL};
char *spn = NULL;
/* Find our DN */
status = libnet_join_find_machine_acct(mem_ctx, r);
if (!ADS_ERR_OK(status)) {
return status;
}
/* Windows only creates HOST/shortname & HOST/fqdn. */
spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
if (!spn) {
return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
}
strupper_m(spn);
spn_array[0] = spn;
if (!name_to_fqdn(my_fqdn, r->in.machine_name)
|| (strchr(my_fqdn, '.') == NULL)) {
fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
r->out.dns_domain_name);
}
strlower_m(my_fqdn);
if (!strequal(my_fqdn, r->in.machine_name)) {
spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
if (!spn) {
return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
}
spn_array[1] = spn;
}
mods = ads_init_mods(mem_ctx);
if (!mods) {
return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
}
/* fields of primary importance */
status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
if (!ADS_ERR_OK(status)) {
return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
}
status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
spn_array);
if (!ADS_ERR_OK(status)) {
return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
}
return ads_gen_mod(r->in.ads, r->out.dn, mods);
}
/****************************************************************
****************************************************************/
static ADS_STATUS libnet_join_set_machine_upn(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
ADS_STATUS status;
ADS_MODLIST mods;
if (!r->in.create_upn) {
return ADS_SUCCESS;
}
/* Find our DN */
status = libnet_join_find_machine_acct(mem_ctx, r);
if (!ADS_ERR_OK(status)) {
return status;
}
if (!r->in.upn) {
r->in.upn = talloc_asprintf(mem_ctx,
"host/%s@%s",
r->in.machine_name,
r->out.dns_domain_name);
if (!r->in.upn) {
return ADS_ERROR(LDAP_NO_MEMORY);
}
}
/* now do the mods */
mods = ads_init_mods(mem_ctx);
if (!mods) {
return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
}
/* fields of primary importance */
status = ads_mod_str(mem_ctx, &mods, "userPrincipalName", r->in.upn);
if (!ADS_ERR_OK(status)) {
return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
}
return ads_gen_mod(r->in.ads, r->out.dn, mods);
}
/****************************************************************
****************************************************************/
static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
ADS_STATUS status;
ADS_MODLIST mods;
char *os_sp = NULL;
if (!r->in.os_name || !r->in.os_version ) {
return ADS_SUCCESS;
}
/* Find our DN */
status = libnet_join_find_machine_acct(mem_ctx, r);
if (!ADS_ERR_OK(status)) {
return status;
}
/* now do the mods */
mods = ads_init_mods(mem_ctx);
if (!mods) {
return ADS_ERROR(LDAP_NO_MEMORY);
}
os_sp = talloc_asprintf(mem_ctx, "Samba %s", samba_version_string());
if (!os_sp) {
return ADS_ERROR(LDAP_NO_MEMORY);
}
/* fields of primary importance */
status = ads_mod_str(mem_ctx, &mods, "operatingSystem",
r->in.os_name);
if (!ADS_ERR_OK(status)) {
return status;
}
status = ads_mod_str(mem_ctx, &mods, "operatingSystemVersion",
r->in.os_version);
if (!ADS_ERR_OK(status)) {
return status;
}
status = ads_mod_str(mem_ctx, &mods, "operatingSystemServicePack",
os_sp);
if (!ADS_ERR_OK(status)) {
return status;
}
return ads_gen_mod(r->in.ads, r->out.dn, mods);
}
/****************************************************************
****************************************************************/
static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
if (!USE_SYSTEM_KEYTAB) {
return true;
}
if (ads_keytab_create_default(r->in.ads) != 0) {
return false;
}
return true;
}
/****************************************************************
****************************************************************/
static bool libnet_join_derive_salting_principal(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
uint32_t domain_func;
ADS_STATUS status;
const char *salt = NULL;
char *std_salt = NULL;
status = ads_domain_func_level(r->in.ads, &domain_func);
if (!ADS_ERR_OK(status)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to determine domain functional level: %s",
ads_errstr(status));
return false;
}
/* go ahead and setup the default salt */
std_salt = kerberos_standard_des_salt();
if (!std_salt) {
libnet_join_set_error_string(mem_ctx, r,
"failed to obtain standard DES salt");
return false;
}
salt = talloc_strdup(mem_ctx, std_salt);
if (!salt) {
return false;
}
SAFE_FREE(std_salt);
/* if it's a Windows functional domain, we have to look for the UPN */
if (domain_func == DS_DOMAIN_FUNCTION_2000) {
char *upn;
upn = ads_get_upn(r->in.ads, mem_ctx,
r->in.machine_name);
if (upn) {
salt = talloc_strdup(mem_ctx, upn);
if (!salt) {
return false;
}
}
}
return kerberos_secrets_store_des_salt(salt);
}
/****************************************************************
****************************************************************/
static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
ADS_STATUS status;
if (!r->in.ads) {
status = libnet_join_connect_ads(mem_ctx, r);
if (!ADS_ERR_OK(status)) {
return status;
}
}
status = libnet_join_set_machine_spn(mem_ctx, r);
if (!ADS_ERR_OK(status)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to set machine spn: %s",
ads_errstr(status));
return status;
}
status = libnet_join_set_os_attributes(mem_ctx, r);
if (!ADS_ERR_OK(status)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to set machine os attributes: %s",
ads_errstr(status));
return status;
}
status = libnet_join_set_machine_upn(mem_ctx, r);
if (!ADS_ERR_OK(status)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to set machine upn: %s",
ads_errstr(status));
return status;
}
if (!libnet_join_derive_salting_principal(mem_ctx, r)) {
return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
}
if (!libnet_join_create_keytab(mem_ctx, r)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to create kerberos keytab");
return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
}
return ADS_SUCCESS;
}
#endif /* WITH_ADS */
/****************************************************************
Store the machine password and domain SID
****************************************************************/
static bool libnet_join_joindomain_store_secrets(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
if (!secrets_store_domain_sid(r->out.netbios_domain_name,
r->out.domain_sid))
{
DEBUG(1,("Failed to save domain sid\n"));
return false;
}
if (!secrets_store_machine_password(r->in.machine_password,
r->out.netbios_domain_name,
r->in.secure_channel_type))
{
DEBUG(1,("Failed to save machine password\n"));
return false;
}
return true;
}
/****************************************************************
Connect dc's IPC$ share
****************************************************************/
static NTSTATUS libnet_join_connect_dc_ipc(const char *dc,
const char *user,
const char *pass,
bool use_kerberos,
struct cli_state **cli)
{
int flags = 0;
if (use_kerberos) {
flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
}
if (use_kerberos && pass) {
flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
}
return cli_full_connection(cli, NULL,
dc,
NULL, 0,
"IPC$", "IPC",
user,
NULL,
pass,
flags,
Undefined, NULL);
}
/****************************************************************
Lookup domain dc's info
****************************************************************/
static NTSTATUS libnet_join_lookup_dc_rpc(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r,
struct cli_state **cli)
{
struct rpc_pipe_client *pipe_hnd = NULL;
struct policy_handle lsa_pol;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
union lsa_PolicyInformation *info = NULL;
status = libnet_join_connect_dc_ipc(r->in.dc_name,
r->in.admin_account,
r->in.admin_password,
r->in.use_kerberos,
cli);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
status = cli_rpc_pipe_open_noauth(*cli, &ndr_table_lsarpc.syntax_id,
&pipe_hnd);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Error connecting to LSA pipe. Error was %s\n",
nt_errstr(status)));
goto done;
}
status = rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
SEC_FLAG_MAXIMUM_ALLOWED, &lsa_pol);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
status = rpccli_lsa_QueryInfoPolicy2(pipe_hnd, mem_ctx,
&lsa_pol,
LSA_POLICY_INFO_DNS,
&info);
if (NT_STATUS_IS_OK(status)) {
r->out.domain_is_ad = true;
r->out.netbios_domain_name = info->dns.name.string;
r->out.dns_domain_name = info->dns.dns_domain.string;
r->out.forest_name = info->dns.dns_forest.string;
r->out.domain_sid = dom_sid_dup(mem_ctx, info->dns.sid);
NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
}
if (!NT_STATUS_IS_OK(status)) {
status = rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
&lsa_pol,
LSA_POLICY_INFO_ACCOUNT_DOMAIN,
&info);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
r->out.netbios_domain_name = info->account_domain.name.string;
r->out.domain_sid = dom_sid_dup(mem_ctx, info->account_domain.sid);
NT_STATUS_HAVE_NO_MEMORY(r->out.domain_sid);
}
rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
TALLOC_FREE(pipe_hnd);
done:
return status;
}
/****************************************************************
Do the domain join unsecure
****************************************************************/
static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r,
struct cli_state *cli)
{
struct rpc_pipe_client *pipe_hnd = NULL;
unsigned char orig_trust_passwd_hash[16];
unsigned char new_trust_passwd_hash[16];
fstring trust_passwd;
NTSTATUS status;
status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
&pipe_hnd);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (!r->in.machine_password) {
r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
}
E_md4hash(r->in.machine_password, new_trust_passwd_hash);
/* according to WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED */
fstrcpy(trust_passwd, r->in.admin_password);
strlower_m(trust_passwd);
/*
* Machine names can be 15 characters, but the max length on
* a password is 14. --jerry
*/
trust_passwd[14] = '\0';
E_md4hash(trust_passwd, orig_trust_passwd_hash);
status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
r->in.machine_name,
orig_trust_passwd_hash,
r->in.machine_password,
new_trust_passwd_hash,
r->in.secure_channel_type);
return status;
}
/****************************************************************
Do the domain join
****************************************************************/
static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r,
struct cli_state *cli)
{
struct rpc_pipe_client *pipe_hnd = NULL;
struct policy_handle sam_pol, domain_pol, user_pol;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
char *acct_name;
struct lsa_String lsa_acct_name;
uint32_t user_rid;
uint32_t acct_flags = ACB_WSTRUST;
struct samr_Ids user_rids;
struct samr_Ids name_types;
union samr_UserInfo user_info;
struct samr_CryptPassword crypt_pwd;
struct samr_CryptPasswordEx crypt_pwd_ex;
ZERO_STRUCT(sam_pol);
ZERO_STRUCT(domain_pol);
ZERO_STRUCT(user_pol);
switch (r->in.secure_channel_type) {
case SEC_CHAN_WKSTA:
acct_flags = ACB_WSTRUST;
break;
case SEC_CHAN_BDC:
acct_flags = ACB_SVRTRUST;
break;
default:
return NT_STATUS_INVALID_PARAMETER;
}
if (!r->in.machine_password) {
r->in.machine_password = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
NT_STATUS_HAVE_NO_MEMORY(r->in.machine_password);
}
/* Open the domain */
status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
&pipe_hnd);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
nt_errstr(status)));
goto done;
}
status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
pipe_hnd->desthost,
SAMR_ACCESS_ENUM_DOMAINS
| SAMR_ACCESS_LOOKUP_DOMAIN,
&sam_pol);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
&sam_pol,
SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
| SAMR_DOMAIN_ACCESS_CREATE_USER
| SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
r->out.domain_sid,
&domain_pol);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
/* Create domain user */
acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
strlower_m(acct_name);
init_lsa_String(&lsa_acct_name, acct_name);
if (r->in.join_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE) {
uint32_t access_desired =
SEC_GENERIC_READ | SEC_GENERIC_WRITE | SEC_GENERIC_EXECUTE |
SEC_STD_WRITE_DAC | SEC_STD_DELETE |
SAMR_USER_ACCESS_SET_PASSWORD |
SAMR_USER_ACCESS_GET_ATTRIBUTES |
SAMR_USER_ACCESS_SET_ATTRIBUTES;
uint32_t access_granted = 0;
DEBUG(10,("Creating account with desired access mask: %d\n",
access_desired));
status = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
&domain_pol,
&lsa_acct_name,
acct_flags,
access_desired,
&user_pol,
&access_granted,
&user_rid);
if (!NT_STATUS_IS_OK(status) &&
!NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
DEBUG(10,("Creation of workstation account failed: %s\n",
nt_errstr(status)));
/* If NT_STATUS_ACCESS_DENIED then we have a valid
username/password combo but the user does not have
administrator access. */
if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
libnet_join_set_error_string(mem_ctx, r,
"User specified does not have "
"administrator privileges");
}
goto done;
}
if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
if (!(r->in.join_flags &
WKSSVC_JOIN_FLAGS_DOMAIN_JOIN_IF_JOINED)) {
goto done;
}
}
/* We *must* do this.... don't ask... */
if (NT_STATUS_IS_OK(status)) {
rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
}
}
status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
&domain_pol,
1,
&lsa_acct_name,
&user_rids,
&name_types);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
if (name_types.ids[0] != SID_NAME_USER) {
DEBUG(0,("%s is not a user account (type=%d)\n",
acct_name, name_types.ids[0]));
status = NT_STATUS_INVALID_WORKSTATION;
goto done;
}
user_rid = user_rids.ids[0];
/* Open handle on user */
status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
&domain_pol,
SEC_FLAG_MAXIMUM_ALLOWED,
user_rid,
&user_pol);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
/* Fill in the additional account flags now */
acct_flags |= ACB_PWNOEXP;
/* Set account flags on machine account */
ZERO_STRUCT(user_info.info16);
user_info.info16.acct_flags = acct_flags;
status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
&user_pol,
16,
&user_info);
if (!NT_STATUS_IS_OK(status)) {
rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
&user_pol);
libnet_join_set_error_string(mem_ctx, r,
"Failed to set account flags for machine account (%s)\n",
nt_errstr(status));
goto done;
}
/* Set password on machine account - first try level 26 */
init_samr_CryptPasswordEx(r->in.machine_password,
&cli->user_session_key,
&crypt_pwd_ex);
user_info.info26.password = crypt_pwd_ex;
user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
&user_pol,
26,
&user_info);
if (NT_STATUS_EQUAL(status, NT_STATUS(DCERPC_FAULT_INVALID_TAG))) {
/* retry with level 24 */
init_samr_CryptPassword(r->in.machine_password,
&cli->user_session_key,
&crypt_pwd);
user_info.info24.password = crypt_pwd;
user_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
status = rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
&user_pol,
24,
&user_info);
}
if (!NT_STATUS_IS_OK(status)) {
rpccli_samr_DeleteUser(pipe_hnd, mem_ctx,
&user_pol);
libnet_join_set_error_string(mem_ctx, r,
"Failed to set password for machine account (%s)\n",
nt_errstr(status));
goto done;
}
status = NT_STATUS_OK;
done:
if (!pipe_hnd) {
return status;
}
if (is_valid_policy_hnd(&sam_pol)) {
rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
}
if (is_valid_policy_hnd(&domain_pol)) {
rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
}
if (is_valid_policy_hnd(&user_pol)) {
rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
}
TALLOC_FREE(pipe_hnd);
return status;
}
/****************************************************************
****************************************************************/
NTSTATUS libnet_join_ok(const char *netbios_domain_name,
const char *machine_name,
const char *dc_name)
{
uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
struct cli_state *cli = NULL;
struct rpc_pipe_client *pipe_hnd = NULL;
struct rpc_pipe_client *netlogon_pipe = NULL;
NTSTATUS status;
char *machine_password = NULL;
char *machine_account = NULL;
if (!dc_name) {
return NT_STATUS_INVALID_PARAMETER;
}
if (!secrets_init()) {
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
}
machine_password = secrets_fetch_machine_password(netbios_domain_name,
NULL, NULL);
if (!machine_password) {
return NT_STATUS_NO_TRUST_LSA_SECRET;
}
if (asprintf(&machine_account, "%s$", machine_name) == -1) {
SAFE_FREE(machine_password);
return NT_STATUS_NO_MEMORY;
}
status = cli_full_connection(&cli, NULL,
dc_name,
NULL, 0,
"IPC$", "IPC",
machine_account,
NULL,
machine_password,
0,
Undefined, NULL);
free(machine_account);
free(machine_password);
if (!NT_STATUS_IS_OK(status)) {
status = cli_full_connection(&cli, NULL,
dc_name,
NULL, 0,
"IPC$", "IPC",
"",
NULL,
"",
0,
Undefined, NULL);
}
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = get_schannel_session_key(cli, netbios_domain_name,
&neg_flags, &netlogon_pipe);
if (!NT_STATUS_IS_OK(status)) {
if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
cli_shutdown(cli);
return NT_STATUS_OK;
}
DEBUG(0,("libnet_join_ok: failed to get schannel session "
"key from server %s for domain %s. Error was %s\n",
cli->desthost, netbios_domain_name, nt_errstr(status)));
cli_shutdown(cli);
return status;
}
if (!lp_client_schannel()) {
cli_shutdown(cli);
return NT_STATUS_OK;
}
status = cli_rpc_pipe_open_schannel_with_key(
cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
DCERPC_AUTH_LEVEL_PRIVACY,
netbios_domain_name, &netlogon_pipe->dc, &pipe_hnd);
cli_shutdown(cli);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("libnet_join_ok: failed to open schannel session "
"on netlogon pipe to server %s for domain %s. "
"Error was %s\n",
cli->desthost, netbios_domain_name, nt_errstr(status)));
return status;
}
return NT_STATUS_OK;
}
/****************************************************************
****************************************************************/
static WERROR libnet_join_post_verify(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
NTSTATUS status;
status = libnet_join_ok(r->out.netbios_domain_name,
r->in.machine_name,
r->in.dc_name);
if (!NT_STATUS_IS_OK(status)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to verify domain membership after joining: %s",
get_friendly_nt_error_msg(status));
return WERR_SETUP_NOT_JOINED;
}
return WERR_OK;
}
/****************************************************************
****************************************************************/
static bool libnet_join_unjoindomain_remove_secrets(TALLOC_CTX *mem_ctx,
struct libnet_UnjoinCtx *r)
{
if (!secrets_delete_machine_password_ex(lp_workgroup())) {
return false;
}
if (!secrets_delete_domain_sid(lp_workgroup())) {
return false;
}
return true;
}
/****************************************************************
****************************************************************/
static NTSTATUS libnet_join_unjoindomain_rpc(TALLOC_CTX *mem_ctx,
struct libnet_UnjoinCtx *r)
{
struct cli_state *cli = NULL;
struct rpc_pipe_client *pipe_hnd = NULL;
struct policy_handle sam_pol, domain_pol, user_pol;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
char *acct_name;
uint32_t user_rid;
struct lsa_String lsa_acct_name;
struct samr_Ids user_rids;
struct samr_Ids name_types;
union samr_UserInfo *info = NULL;
ZERO_STRUCT(sam_pol);
ZERO_STRUCT(domain_pol);
ZERO_STRUCT(user_pol);
status = libnet_join_connect_dc_ipc(r->in.dc_name,
r->in.admin_account,
r->in.admin_password,
r->in.use_kerberos,
&cli);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
/* Open the domain */
status = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
&pipe_hnd);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Error connecting to SAM pipe. Error was %s\n",
nt_errstr(status)));
goto done;
}
status = rpccli_samr_Connect2(pipe_hnd, mem_ctx,
pipe_hnd->desthost,
SEC_FLAG_MAXIMUM_ALLOWED,
&sam_pol);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
status = rpccli_samr_OpenDomain(pipe_hnd, mem_ctx,
&sam_pol,
SEC_FLAG_MAXIMUM_ALLOWED,
r->in.domain_sid,
&domain_pol);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
/* Create domain user */
acct_name = talloc_asprintf(mem_ctx, "%s$", r->in.machine_name);
strlower_m(acct_name);
init_lsa_String(&lsa_acct_name, acct_name);
status = rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
&domain_pol,
1,
&lsa_acct_name,
&user_rids,
&name_types);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
if (name_types.ids[0] != SID_NAME_USER) {
DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name,
name_types.ids[0]));
status = NT_STATUS_INVALID_WORKSTATION;
goto done;
}
user_rid = user_rids.ids[0];
/* Open handle on user */
status = rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
&domain_pol,
SEC_FLAG_MAXIMUM_ALLOWED,
user_rid,
&user_pol);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
/* Get user info */
status = rpccli_samr_QueryUserInfo(pipe_hnd, mem_ctx,
&user_pol,
16,
&info);
if (!NT_STATUS_IS_OK(status)) {
rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
goto done;
}
/* now disable and setuser info */
info->info16.acct_flags |= ACB_DISABLED;
status = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
&user_pol,
16,
info);
rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
done:
if (pipe_hnd) {
if (is_valid_policy_hnd(&domain_pol)) {
rpccli_samr_Close(pipe_hnd, mem_ctx, &domain_pol);
}
if (is_valid_policy_hnd(&sam_pol)) {
rpccli_samr_Close(pipe_hnd, mem_ctx, &sam_pol);
}
TALLOC_FREE(pipe_hnd);
}
if (cli) {
cli_shutdown(cli);
}
return status;
}
/****************************************************************
****************************************************************/
static WERROR do_join_modify_vals_config(struct libnet_JoinCtx *r)
{
WERROR werr;
struct smbconf_ctx *ctx;
werr = smbconf_init_reg(r, &ctx, NULL);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
werr = smbconf_set_global_parameter(ctx, "security", "user");
W_ERROR_NOT_OK_GOTO_DONE(werr);
werr = smbconf_set_global_parameter(ctx, "workgroup",
r->in.domain_name);
smbconf_delete_global_parameter(ctx, "realm");
goto done;
}
werr = smbconf_set_global_parameter(ctx, "security", "domain");
W_ERROR_NOT_OK_GOTO_DONE(werr);
werr = smbconf_set_global_parameter(ctx, "workgroup",
r->out.netbios_domain_name);
W_ERROR_NOT_OK_GOTO_DONE(werr);
if (r->out.domain_is_ad) {
werr = smbconf_set_global_parameter(ctx, "security", "ads");
W_ERROR_NOT_OK_GOTO_DONE(werr);
werr = smbconf_set_global_parameter(ctx, "realm",
r->out.dns_domain_name);
W_ERROR_NOT_OK_GOTO_DONE(werr);
}
done:
smbconf_shutdown(ctx);
return werr;
}
/****************************************************************
****************************************************************/
static WERROR do_unjoin_modify_vals_config(struct libnet_UnjoinCtx *r)
{
WERROR werr = WERR_OK;
struct smbconf_ctx *ctx;
werr = smbconf_init_reg(r, &ctx, NULL);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
werr = smbconf_set_global_parameter(ctx, "security", "user");
W_ERROR_NOT_OK_GOTO_DONE(werr);
werr = smbconf_delete_global_parameter(ctx, "workgroup");
W_ERROR_NOT_OK_GOTO_DONE(werr);
smbconf_delete_global_parameter(ctx, "realm");
}
done:
smbconf_shutdown(ctx);
return werr;
}
/****************************************************************
****************************************************************/
static WERROR do_JoinConfig(struct libnet_JoinCtx *r)
{
WERROR werr;
if (!W_ERROR_IS_OK(r->out.result)) {
return r->out.result;
}
if (!r->in.modify_config) {
return WERR_OK;
}
werr = do_join_modify_vals_config(r);
if (!W_ERROR_IS_OK(werr)) {
return werr;
}
lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
r->out.modified_config = true;
r->out.result = werr;
return werr;
}
/****************************************************************
****************************************************************/
static WERROR libnet_unjoin_config(struct libnet_UnjoinCtx *r)
{
WERROR werr;
if (!W_ERROR_IS_OK(r->out.result)) {
return r->out.result;
}
if (!r->in.modify_config) {
return WERR_OK;
}
werr = do_unjoin_modify_vals_config(r);
if (!W_ERROR_IS_OK(werr)) {
return werr;
}
lp_load(get_dyn_CONFIGFILE(),true,false,false,true);
r->out.modified_config = true;
r->out.result = werr;
return werr;
}
/****************************************************************
****************************************************************/
static bool libnet_parse_domain_dc(TALLOC_CTX *mem_ctx,
const char *domain_str,
const char **domain_p,
const char **dc_p)
{
char *domain = NULL;
char *dc = NULL;
const char *p = NULL;
if (!domain_str || !domain_p || !dc_p) {
return false;
}
p = strchr_m(domain_str, '\\');
if (p != NULL) {
domain = talloc_strndup(mem_ctx, domain_str,
PTR_DIFF(p, domain_str));
dc = talloc_strdup(mem_ctx, p+1);
if (!dc) {
return false;
}
} else {
domain = talloc_strdup(mem_ctx, domain_str);
dc = NULL;
}
if (!domain) {
return false;
}
*domain_p = domain;
if (!*dc_p && dc) {
*dc_p = dc;
}
return true;
}
/****************************************************************
****************************************************************/
static WERROR libnet_join_pre_processing(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
if (!r->in.domain_name) {
libnet_join_set_error_string(mem_ctx, r,
"No domain name defined");
return WERR_INVALID_PARAM;
}
if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
&r->in.domain_name,
&r->in.dc_name)) {
libnet_join_set_error_string(mem_ctx, r,
"Failed to parse domain name");
return WERR_INVALID_PARAM;
}
if (IS_DC) {
return WERR_SETUP_DOMAIN_CONTROLLER;
}
if (!secrets_init()) {
libnet_join_set_error_string(mem_ctx, r,
"Unable to open secrets database");
return WERR_CAN_NOT_COMPLETE;
}
return WERR_OK;
}
/****************************************************************
****************************************************************/
static void libnet_join_add_dom_rids_to_builtins(struct dom_sid *domain_sid)
{
NTSTATUS status;
/* Try adding dom admins to builtin\admins. Only log failures. */
status = create_builtin_administrators(domain_sid);
if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
DEBUG(10,("Unable to auto-add domain administrators to "
"BUILTIN\\Administrators during join because "
"winbindd must be running."));
} else if (!NT_STATUS_IS_OK(status)) {
DEBUG(5, ("Failed to auto-add domain administrators to "
"BUILTIN\\Administrators during join: %s\n",
nt_errstr(status)));
}
/* Try adding dom users to builtin\users. Only log failures. */
status = create_builtin_users(domain_sid);
if (NT_STATUS_EQUAL(status, NT_STATUS_PROTOCOL_UNREACHABLE)) {
DEBUG(10,("Unable to auto-add domain users to BUILTIN\\users "
"during join because winbindd must be running."));
} else if (!NT_STATUS_IS_OK(status)) {
DEBUG(5, ("Failed to auto-add domain administrators to "
"BUILTIN\\Administrators during join: %s\n",
nt_errstr(status)));
}
}
/****************************************************************
****************************************************************/
static WERROR libnet_join_post_processing(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
WERROR werr;
if (!W_ERROR_IS_OK(r->out.result)) {
return r->out.result;
}
werr = do_JoinConfig(r);
if (!W_ERROR_IS_OK(werr)) {
return werr;
}
if (!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE)) {
return WERR_OK;
}
saf_join_store(r->out.netbios_domain_name, r->in.dc_name);
if (r->out.dns_domain_name) {
saf_join_store(r->out.dns_domain_name, r->in.dc_name);
}
#ifdef WITH_ADS
if (r->out.domain_is_ad &&
!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
ADS_STATUS ads_status;
ads_status = libnet_join_post_processing_ads(mem_ctx, r);
if (!ADS_ERR_OK(ads_status)) {
return WERR_GENERAL_FAILURE;
}
}
#endif /* WITH_ADS */
libnet_join_add_dom_rids_to_builtins(r->out.domain_sid);
return WERR_OK;
}
/****************************************************************
****************************************************************/
static int libnet_destroy_JoinCtx(struct libnet_JoinCtx *r)
{
const char *krb5_cc_env = NULL;
if (r->in.ads) {
ads_destroy(&r->in.ads);
}
krb5_cc_env = getenv(KRB5_ENV_CCNAME);
if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
unsetenv(KRB5_ENV_CCNAME);
}
return 0;
}
/****************************************************************
****************************************************************/
static int libnet_destroy_UnjoinCtx(struct libnet_UnjoinCtx *r)
{
const char *krb5_cc_env = NULL;
if (r->in.ads) {
ads_destroy(&r->in.ads);
}
krb5_cc_env = getenv(KRB5_ENV_CCNAME);
if (krb5_cc_env && StrCaseCmp(krb5_cc_env, "MEMORY:libnetjoin")) {
unsetenv(KRB5_ENV_CCNAME);
}
return 0;
}
/****************************************************************
****************************************************************/
WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx **r)
{
struct libnet_JoinCtx *ctx;
const char *krb5_cc_env = NULL;
ctx = talloc_zero(mem_ctx, struct libnet_JoinCtx);
if (!ctx) {
return WERR_NOMEM;
}
talloc_set_destructor(ctx, libnet_destroy_JoinCtx);
ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
krb5_cc_env = getenv(KRB5_ENV_CCNAME);
if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
}
ctx->in.secure_channel_type = SEC_CHAN_WKSTA;
*r = ctx;
return WERR_OK;
}
/****************************************************************
****************************************************************/
WERROR libnet_init_UnjoinCtx(TALLOC_CTX *mem_ctx,
struct libnet_UnjoinCtx **r)
{
struct libnet_UnjoinCtx *ctx;
const char *krb5_cc_env = NULL;
ctx = talloc_zero(mem_ctx, struct libnet_UnjoinCtx);
if (!ctx) {
return WERR_NOMEM;
}
talloc_set_destructor(ctx, libnet_destroy_UnjoinCtx);
ctx->in.machine_name = talloc_strdup(mem_ctx, global_myname());
W_ERROR_HAVE_NO_MEMORY(ctx->in.machine_name);
krb5_cc_env = getenv(KRB5_ENV_CCNAME);
if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
krb5_cc_env = talloc_strdup(mem_ctx, "MEMORY:libnetjoin");
W_ERROR_HAVE_NO_MEMORY(krb5_cc_env);
setenv(KRB5_ENV_CCNAME, krb5_cc_env, 1);
}
*r = ctx;
return WERR_OK;
}
/****************************************************************
****************************************************************/
static WERROR libnet_join_check_config(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
bool valid_security = false;
bool valid_workgroup = false;
bool valid_realm = false;
/* check if configuration is already set correctly */
valid_workgroup = strequal(lp_workgroup(), r->out.netbios_domain_name);
switch (r->out.domain_is_ad) {
case false:
valid_security = (lp_security() == SEC_DOMAIN);
if (valid_workgroup && valid_security) {
/* nothing to be done */
return WERR_OK;
}
break;
case true:
valid_realm = strequal(lp_realm(), r->out.dns_domain_name);
switch (lp_security()) {
case SEC_DOMAIN:
case SEC_ADS:
valid_security = true;
}
if (valid_workgroup && valid_realm && valid_security) {
/* nothing to be done */
return WERR_OK;
}
break;
}
/* check if we are supposed to manipulate configuration */
if (!r->in.modify_config) {
char *wrong_conf = talloc_strdup(mem_ctx, "");
if (!valid_workgroup) {
wrong_conf = talloc_asprintf_append(wrong_conf,
"\"workgroup\" set to '%s', should be '%s'",
lp_workgroup(), r->out.netbios_domain_name);
W_ERROR_HAVE_NO_MEMORY(wrong_conf);
}
if (!valid_realm) {
wrong_conf = talloc_asprintf_append(wrong_conf,
"\"realm\" set to '%s', should be '%s'",
lp_realm(), r->out.dns_domain_name);
W_ERROR_HAVE_NO_MEMORY(wrong_conf);
}
if (!valid_security) {
const char *sec = NULL;
switch (lp_security()) {
case SEC_SHARE: sec = "share"; break;
case SEC_USER: sec = "user"; break;
case SEC_DOMAIN: sec = "domain"; break;
case SEC_ADS: sec = "ads"; break;
}
wrong_conf = talloc_asprintf_append(wrong_conf,
"\"security\" set to '%s', should be %s",
sec, r->out.domain_is_ad ?
"either 'domain' or 'ads'" : "'domain'");
W_ERROR_HAVE_NO_MEMORY(wrong_conf);
}
libnet_join_set_error_string(mem_ctx, r,
"Invalid configuration (%s) and configuration modification "
"was not requested", wrong_conf);
return WERR_CAN_NOT_COMPLETE;
}
/* check if we are able to manipulate configuration */
if (!lp_config_backend_is_registry()) {
libnet_join_set_error_string(mem_ctx, r,
"Configuration manipulation requested but not "
"supported by backend");
return WERR_NOT_SUPPORTED;
}
return WERR_OK;
}
/****************************************************************
****************************************************************/
static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
NTSTATUS status;
WERROR werr;
struct cli_state *cli = NULL;
#ifdef WITH_ADS
ADS_STATUS ads_status;
#endif /* WITH_ADS */
if (!r->in.dc_name) {
struct netr_DsRGetDCNameInfo *info;
const char *dc;
status = dsgetdcname(mem_ctx,
r->in.msg_ctx,
r->in.domain_name,
NULL,
NULL,
DS_FORCE_REDISCOVERY |
DS_DIRECTORY_SERVICE_REQUIRED |
DS_WRITABLE_REQUIRED |
DS_RETURN_DNS_NAME,
&info);
if (!NT_STATUS_IS_OK(status)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to find DC for domain %s",
r->in.domain_name,
get_friendly_nt_error_msg(status));
return WERR_DCNOTFOUND;
}
dc = strip_hostname(info->dc_unc);
r->in.dc_name = talloc_strdup(mem_ctx, dc);
W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
}
status = libnet_join_lookup_dc_rpc(mem_ctx, r, &cli);
if (!NT_STATUS_IS_OK(status)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to lookup DC info for domain '%s' over rpc: %s",
r->in.domain_name, get_friendly_nt_error_msg(status));
return ntstatus_to_werror(status);
}
werr = libnet_join_check_config(mem_ctx, r);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
#ifdef WITH_ADS
if (r->out.domain_is_ad && r->in.account_ou &&
!(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) {
ads_status = libnet_join_connect_ads(mem_ctx, r);
if (!ADS_ERR_OK(ads_status)) {
return WERR_DEFAULT_JOIN_REQUIRED;
}
ads_status = libnet_join_precreate_machine_acct(mem_ctx, r);
if (!ADS_ERR_OK(ads_status)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to precreate account in ou %s: %s",
r->in.account_ou,
ads_errstr(ads_status));
return WERR_DEFAULT_JOIN_REQUIRED;
}
r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE;
}
#endif /* WITH_ADS */
if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) &&
(r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) {
status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli);
} else {
status = libnet_join_joindomain_rpc(mem_ctx, r, cli);
}
if (!NT_STATUS_IS_OK(status)) {
libnet_join_set_error_string(mem_ctx, r,
"failed to join domain '%s' over rpc: %s",
r->in.domain_name, get_friendly_nt_error_msg(status));
if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
return WERR_SETUP_ALREADY_JOINED;
}
werr = ntstatus_to_werror(status);
goto done;
}
if (!libnet_join_joindomain_store_secrets(mem_ctx, r)) {
werr = WERR_SETUP_NOT_JOINED;
goto done;
}
werr = WERR_OK;
done:
if (cli) {
cli_shutdown(cli);
}
return werr;
}
/****************************************************************
****************************************************************/
static WERROR libnet_join_rollback(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
WERROR werr;
struct libnet_UnjoinCtx *u = NULL;
werr = libnet_init_UnjoinCtx(mem_ctx, &u);
if (!W_ERROR_IS_OK(werr)) {
return werr;
}
u->in.debug = r->in.debug;
u->in.dc_name = r->in.dc_name;
u->in.domain_name = r->in.domain_name;
u->in.admin_account = r->in.admin_account;
u->in.admin_password = r->in.admin_password;
u->in.modify_config = r->in.modify_config;
u->in.unjoin_flags = WKSSVC_JOIN_FLAGS_JOIN_TYPE |
WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE;
werr = libnet_Unjoin(mem_ctx, u);
TALLOC_FREE(u);
return werr;
}
/****************************************************************
****************************************************************/
WERROR libnet_Join(TALLOC_CTX *mem_ctx,
struct libnet_JoinCtx *r)
{
WERROR werr;
if (r->in.debug) {
LIBNET_JOIN_IN_DUMP_CTX(mem_ctx, r);
}
werr = libnet_join_pre_processing(mem_ctx, r);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
werr = libnet_DomainJoin(mem_ctx, r);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
}
werr = libnet_join_post_processing(mem_ctx, r);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
if (r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
werr = libnet_join_post_verify(mem_ctx, r);
if (!W_ERROR_IS_OK(werr)) {
libnet_join_rollback(mem_ctx, r);
}
}
done:
r->out.result = werr;
if (r->in.debug) {
LIBNET_JOIN_OUT_DUMP_CTX(mem_ctx, r);
}
return werr;
}
/****************************************************************
****************************************************************/
static WERROR libnet_DomainUnjoin(TALLOC_CTX *mem_ctx,
struct libnet_UnjoinCtx *r)
{
NTSTATUS status;
if (!r->in.domain_sid) {
struct dom_sid sid;
if (!secrets_fetch_domain_sid(lp_workgroup(), &sid)) {
libnet_unjoin_set_error_string(mem_ctx, r,
"Unable to fetch domain sid: are we joined?");
return WERR_SETUP_NOT_JOINED;
}
r->in.domain_sid = dom_sid_dup(mem_ctx, &sid);
W_ERROR_HAVE_NO_MEMORY(r->in.domain_sid);
}
if (!(r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) &&
!r->in.delete_machine_account) {
libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
return WERR_OK;
}
if (!r->in.dc_name) {
struct netr_DsRGetDCNameInfo *info;
const char *dc;
status = dsgetdcname(mem_ctx,
r->in.msg_ctx,
r->in.domain_name,
NULL,
NULL,
DS_DIRECTORY_SERVICE_REQUIRED |
DS_WRITABLE_REQUIRED |
DS_RETURN_DNS_NAME,
&info);
if (!NT_STATUS_IS_OK(status)) {
libnet_unjoin_set_error_string(mem_ctx, r,
"failed to find DC for domain %s",
r->in.domain_name,
get_friendly_nt_error_msg(status));
return WERR_DCNOTFOUND;
}
dc = strip_hostname(info->dc_unc);
r->in.dc_name = talloc_strdup(mem_ctx, dc);
W_ERROR_HAVE_NO_MEMORY(r->in.dc_name);
}
#ifdef WITH_ADS
/* for net ads leave, try to delete the account. If it works,
no sense in disabling. If it fails, we can still try to
disable it. jmcd */
if (r->in.delete_machine_account) {
ADS_STATUS ads_status;
ads_status = libnet_unjoin_connect_ads(mem_ctx, r);
if (ADS_ERR_OK(ads_status)) {
/* dirty hack */
r->out.dns_domain_name =
talloc_strdup(mem_ctx,
r->in.ads->server.realm);
ads_status =
libnet_unjoin_remove_machine_acct(mem_ctx, r);
}
if (!ADS_ERR_OK(ads_status)) {
libnet_unjoin_set_error_string(mem_ctx, r,
"failed to remove machine account from AD: %s",
ads_errstr(ads_status));
} else {
r->out.deleted_machine_account = true;
W_ERROR_HAVE_NO_MEMORY(r->out.dns_domain_name);
libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
return WERR_OK;
}
}
#endif /* WITH_ADS */
/* The WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE flag really means
"disable". */
if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_ACCOUNT_DELETE) {
status = libnet_join_unjoindomain_rpc(mem_ctx, r);
if (!NT_STATUS_IS_OK(status)) {
libnet_unjoin_set_error_string(mem_ctx, r,
"failed to disable machine account via rpc: %s",
get_friendly_nt_error_msg(status));
if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
return WERR_SETUP_NOT_JOINED;
}
return ntstatus_to_werror(status);
}
r->out.disabled_machine_account = true;
}
/* If disable succeeded or was not requested at all, we
should be getting rid of our end of things */
libnet_join_unjoindomain_remove_secrets(mem_ctx, r);
return WERR_OK;
}
/****************************************************************
****************************************************************/
static WERROR libnet_unjoin_pre_processing(TALLOC_CTX *mem_ctx,
struct libnet_UnjoinCtx *r)
{
if (!r->in.domain_name) {
libnet_unjoin_set_error_string(mem_ctx, r,
"No domain name defined");
return WERR_INVALID_PARAM;
}
if (!libnet_parse_domain_dc(mem_ctx, r->in.domain_name,
&r->in.domain_name,
&r->in.dc_name)) {
libnet_unjoin_set_error_string(mem_ctx, r,
"Failed to parse domain name");
return WERR_INVALID_PARAM;
}
if (IS_DC) {
return WERR_SETUP_DOMAIN_CONTROLLER;
}
if (!secrets_init()) {
libnet_unjoin_set_error_string(mem_ctx, r,
"Unable to open secrets database");
return WERR_CAN_NOT_COMPLETE;
}
return WERR_OK;
}
/****************************************************************
****************************************************************/
static WERROR libnet_unjoin_post_processing(TALLOC_CTX *mem_ctx,
struct libnet_UnjoinCtx *r)
{
saf_delete(r->out.netbios_domain_name);
saf_delete(r->out.dns_domain_name);
return libnet_unjoin_config(r);
}
/****************************************************************
****************************************************************/
WERROR libnet_Unjoin(TALLOC_CTX *mem_ctx,
struct libnet_UnjoinCtx *r)
{
WERROR werr;
if (r->in.debug) {
LIBNET_UNJOIN_IN_DUMP_CTX(mem_ctx, r);
}
werr = libnet_unjoin_pre_processing(mem_ctx, r);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
if (r->in.unjoin_flags & WKSSVC_JOIN_FLAGS_JOIN_TYPE) {
werr = libnet_DomainUnjoin(mem_ctx, r);
if (!W_ERROR_IS_OK(werr)) {
libnet_unjoin_config(r);
goto done;
}
}
werr = libnet_unjoin_post_processing(mem_ctx, r);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
done:
r->out.result = werr;
if (r->in.debug) {
LIBNET_UNJOIN_OUT_DUMP_CTX(mem_ctx, r);
}
return werr;
}