_PUBLIC_ struct test_join *torture_join_domain(struct torture_context *tctx,
const char *machine_name,
uint32_t acct_flags,
struct cli_credentials **machine_credentials)
{
NTSTATUS status;
struct libnet_context *libnet_ctx;
struct libnet_JoinDomain *libnet_r;
struct test_join *tj;
struct samr_SetUserInfo s;
union samr_UserInfo u;
tj = talloc(tctx, struct test_join);
if (!tj) return NULL;
libnet_r = talloc(tj, struct libnet_JoinDomain);
if (!libnet_r) {
talloc_free(tj);
return NULL;
}
libnet_ctx = libnet_context_init(tctx->ev, tctx->lp_ctx);
if (!libnet_ctx) {
talloc_free(tj);
return NULL;
}
tj->libnet_r = libnet_r;
libnet_ctx->cred = cmdline_credentials;
libnet_r->in.binding = torture_setting_string(tctx, "binding", NULL);
if (!libnet_r->in.binding) {
libnet_r->in.binding = talloc_asprintf(libnet_r, "ncacn_np:%s", torture_setting_string(tctx, "host", NULL));
}
libnet_r->in.level = LIBNET_JOINDOMAIN_SPECIFIED;
libnet_r->in.netbios_name = machine_name;
libnet_r->in.account_name = talloc_asprintf(libnet_r, "%s$", machine_name);
if (!libnet_r->in.account_name) {
talloc_free(tj);
return NULL;
}
libnet_r->in.acct_type = acct_flags;
libnet_r->in.recreate_account = true;
status = libnet_JoinDomain(libnet_ctx, libnet_r, libnet_r);
if (!NT_STATUS_IS_OK(status)) {
if (libnet_r->out.error_string) {
DEBUG(0, ("Domain join failed - %s\n", libnet_r->out.error_string));
} else {
DEBUG(0, ("Domain join failed - %s\n", nt_errstr(status)));
}
talloc_free(tj);
return NULL;
}
tj->p = libnet_r->out.samr_pipe;
tj->user_handle = *libnet_r->out.user_handle;
tj->dom_sid = libnet_r->out.domain_sid;
talloc_steal(tj, libnet_r->out.domain_sid);
tj->dom_netbios_name = libnet_r->out.domain_name;
talloc_steal(tj, libnet_r->out.domain_name);
tj->dom_dns_name = libnet_r->out.realm;
talloc_steal(tj, libnet_r->out.realm);
tj->user_guid = libnet_r->out.account_guid;
tj->netbios_name = talloc_strdup(tj, machine_name);
if (!tj->netbios_name) {
talloc_free(tj);
return NULL;
}
ZERO_STRUCT(u);
s.in.user_handle = &tj->user_handle;
s.in.info = &u;
s.in.level = 21;
u.info21.fields_present = SAMR_FIELD_DESCRIPTION | SAMR_FIELD_COMMENT | SAMR_FIELD_FULL_NAME;
u.info21.comment.string = talloc_asprintf(tj,
"Tortured by Samba4: %s",
timestring(tj, time(NULL)));
u.info21.full_name.string = talloc_asprintf(tj,
"Torture account for Samba4: %s",
timestring(tj, time(NULL)));
u.info21.description.string = talloc_asprintf(tj,
"Samba4 torture account created by host %s: %s",
lp_netbios_name(tctx->lp_ctx), timestring(tj, time(NULL)));
status = dcerpc_samr_SetUserInfo(tj->p, tj, &s);
if (!NT_STATUS_IS_OK(status)) {
printf("SetUserInfo (non-critical) failed - %s\n", nt_errstr(status));
}
*machine_credentials = cli_credentials_init(tj);
cli_credentials_set_conf(*machine_credentials, tctx->lp_ctx);
cli_credentials_set_workstation(*machine_credentials, machine_name, CRED_SPECIFIED);
cli_credentials_set_domain(*machine_credentials, libnet_r->out.domain_name, CRED_SPECIFIED);
if (libnet_r->out.realm) {
cli_credentials_set_realm(*machine_credentials, libnet_r->out.realm, CRED_SPECIFIED);
}
cli_credentials_set_username(*machine_credentials, libnet_r->in.account_name, CRED_SPECIFIED);
cli_credentials_set_password(*machine_credentials, libnet_r->out.join_password, CRED_SPECIFIED);
cli_credentials_set_kvno(*machine_credentials, libnet_r->out.kvno);
if (acct_flags & ACB_SVRTRUST) {
cli_credentials_set_secure_channel_type(*machine_credentials,
SEC_CHAN_BDC);
} else if (acct_flags & ACB_WSTRUST) {
cli_credentials_set_secure_channel_type(*machine_credentials,
SEC_CHAN_WKSTA);
} else {
DEBUG(0, ("Invalid account type specificed to torture_join_domain\n"));
talloc_free(*machine_credentials);
return NULL;
}
return tj;
}
int net_rpc_join_newstyle(struct net_context *c, int argc, const char **argv)
{
/* libsmb variables */
struct cli_state *cli;
TALLOC_CTX *mem_ctx;
uint32 acb_info = ACB_WSTRUST;
uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
enum netr_SchannelType sec_channel_type;
struct rpc_pipe_client *pipe_hnd = NULL;
struct dcerpc_binding_handle *b = NULL;
/* rpc variables */
struct policy_handle lsa_pol, sam_pol, domain_pol, user_pol;
struct dom_sid *domain_sid;
uint32 user_rid;
/* Password stuff */
char *clear_trust_password = NULL;
struct samr_CryptPassword crypt_pwd;
uchar md4_trust_password[16];
union samr_UserInfo set_info;
/* Misc */
NTSTATUS status, result;
int retval = 1;
const char *domain = NULL;
char *acct_name;
struct lsa_String lsa_acct_name;
uint32 acct_flags=0;
uint32_t access_granted = 0;
union lsa_PolicyInformation *info = NULL;
struct samr_Ids user_rids;
struct samr_Ids name_types;
/* check what type of join */
if (argc >= 0) {
sec_channel_type = get_sec_channel_type(argv[0]);
} else {
sec_channel_type = get_sec_channel_type(NULL);
}
switch (sec_channel_type) {
case SEC_CHAN_WKSTA:
acb_info = ACB_WSTRUST;
break;
case SEC_CHAN_BDC:
acb_info = ACB_SVRTRUST;
break;
#if 0
case SEC_CHAN_DOMAIN:
acb_info = ACB_DOMTRUST;
break;
#endif
default:
DEBUG(0,("secure channel type %d not yet supported\n",
sec_channel_type));
break;
}
/* Make authenticated connection to remote machine */
status = net_make_ipc_connection(c, NET_FLAGS_PDC, &cli);
if (!NT_STATUS_IS_OK(status)) {
return 1;
}
if (!(mem_ctx = talloc_init("net_rpc_join_newstyle"))) {
DEBUG(0, ("Could not initialise talloc context\n"));
goto done;
}
/* Fetch domain sid */
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;
}
b = pipe_hnd->binding_handle;
CHECK_RPC_ERR(rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
SEC_FLAG_MAXIMUM_ALLOWED,
&lsa_pol),
"error opening lsa policy handle");
CHECK_DCERPC_ERR(dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
&lsa_pol,
LSA_POLICY_INFO_ACCOUNT_DOMAIN,
&info,
&result),
"error querying info policy");
domain = info->account_domain.name.string;
domain_sid = info->account_domain.sid;
dcerpc_lsa_Close(b, mem_ctx, &lsa_pol, &result);
TALLOC_FREE(pipe_hnd); /* Done with this pipe */
/* Bail out if domain didn't get set. */
if (!domain) {
DEBUG(0, ("Could not get domain name.\n"));
goto done;
}
/* Create domain user */
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;
}
b = pipe_hnd->binding_handle;
CHECK_DCERPC_ERR(dcerpc_samr_Connect2(b, mem_ctx,
pipe_hnd->desthost,
SAMR_ACCESS_ENUM_DOMAINS
| SAMR_ACCESS_LOOKUP_DOMAIN,
&sam_pol,
&result),
"could not connect to SAM database");
CHECK_DCERPC_ERR(dcerpc_samr_OpenDomain(b, mem_ctx,
&sam_pol,
SAMR_DOMAIN_ACCESS_LOOKUP_INFO_1
| SAMR_DOMAIN_ACCESS_CREATE_USER
| SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT,
domain_sid,
&domain_pol,
&result),
"could not open domain");
/* Create domain user */
if ((acct_name = talloc_asprintf(mem_ctx, "%s$", global_myname())) == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
strlower_m(acct_name);
init_lsa_String(&lsa_acct_name, acct_name);
acct_flags = 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;
DEBUG(10, ("Creating account with flags: %d\n",acct_flags));
status = dcerpc_samr_CreateUser2(b, mem_ctx,
&domain_pol,
&lsa_acct_name,
acb_info,
acct_flags,
&user_pol,
&access_granted,
&user_rid,
&result);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
if (!NT_STATUS_IS_OK(result) &&
!NT_STATUS_EQUAL(result, NT_STATUS_USER_EXISTS)) {
status = result;
d_fprintf(stderr,_("Creation of workstation account failed\n"));
/* If NT_STATUS_ACCESS_DENIED then we have a valid
username/password combo but the user does not have
administrator access. */
if (NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED))
d_fprintf(stderr, _("User specified does not have "
"administrator privileges\n"));
goto done;
}
/* We *must* do this.... don't ask... */
if (NT_STATUS_IS_OK(result)) {
dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
}
CHECK_DCERPC_ERR_DEBUG(dcerpc_samr_LookupNames(b, mem_ctx,
&domain_pol,
1,
&lsa_acct_name,
&user_rids,
&name_types,
&result),
("error looking up rid for user %s: %s/%s\n",
acct_name, nt_errstr(status), nt_errstr(result)));
if (user_rids.count != 1) {
status = NT_STATUS_INVALID_NETWORK_RESPONSE;
goto done;
}
if (name_types.count != 1) {
status = NT_STATUS_INVALID_NETWORK_RESPONSE;
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]));
goto done;
}
user_rid = user_rids.ids[0];
/* Open handle on user */
CHECK_DCERPC_ERR_DEBUG(
dcerpc_samr_OpenUser(b, mem_ctx,
&domain_pol,
SEC_FLAG_MAXIMUM_ALLOWED,
user_rid,
&user_pol,
&result),
("could not re-open existing user %s: %s/%s\n",
acct_name, nt_errstr(status), nt_errstr(result)));
/* Create a random machine account password */
clear_trust_password = generate_random_str(talloc_tos(), DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
E_md4hash(clear_trust_password, md4_trust_password);
/* Set password on machine account */
init_samr_CryptPassword(clear_trust_password,
&cli->user_session_key,
&crypt_pwd);
set_info.info24.password = crypt_pwd;
set_info.info24.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
CHECK_DCERPC_ERR(dcerpc_samr_SetUserInfo2(b, mem_ctx,
&user_pol,
24,
&set_info,
&result),
"error setting trust account password");
/* Why do we have to try to (re-)set the ACB to be the same as what
we passed in the samr_create_dom_user() call? When a NT
workstation is joined to a domain by an administrator the
acb_info is set to 0x80. For a normal user with "Add
workstations to the domain" rights the acb_info is 0x84. I'm
not sure whether it is supposed to make a difference or not. NT
seems to cope with either value so don't bomb out if the set
userinfo2 level 0x10 fails. -tpot */
set_info.info16.acct_flags = acb_info;
/* Ignoring the return value is necessary for joining a domain
as a normal user with "Add workstation to domain" privilege. */
status = dcerpc_samr_SetUserInfo(b, mem_ctx,
&user_pol,
16,
&set_info,
&result);
dcerpc_samr_Close(b, mem_ctx, &user_pol, &result);
TALLOC_FREE(pipe_hnd); /* Done with this pipe */
/* Now check the whole process from top-to-bottom */
status = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
&pipe_hnd);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Error connecting to NETLOGON pipe. Error was %s\n",
nt_errstr(status) ));
goto done;
}
status = rpccli_netlogon_setup_creds(pipe_hnd,
cli->desthost, /* server name */
domain, /* domain */
global_myname(), /* client name */
global_myname(), /* machine account name */
md4_trust_password,
sec_channel_type,
&neg_flags);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Error in domain join verification (credential setup failed): %s\n\n",
nt_errstr(status)));
if ( NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) &&
(sec_channel_type == SEC_CHAN_BDC) ) {
d_fprintf(stderr, _("Please make sure that no computer "
"account\nnamed like this machine "
"(%s) exists in the domain\n"),
global_myname());
}
goto done;
}
/* We can only check the schannel connection if the client is allowed
to do this and the server supports it. If not, just assume success
(after all the rpccli_netlogon_setup_creds() succeeded, and we'll
do the same again (setup creds) in net_rpc_join_ok(). JRA. */
if (lp_client_schannel() && (neg_flags & NETLOGON_NEG_SCHANNEL)) {
struct rpc_pipe_client *netlogon_schannel_pipe;
status = cli_rpc_pipe_open_schannel_with_key(
cli, &ndr_table_netlogon.syntax_id, NCACN_NP,
DCERPC_AUTH_LEVEL_PRIVACY, domain, &pipe_hnd->dc,
&netlogon_schannel_pipe);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Error in domain join verification (schannel setup failed): %s\n\n",
nt_errstr(status)));
if ( NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED) &&
(sec_channel_type == SEC_CHAN_BDC) ) {
d_fprintf(stderr, _("Please make sure that no "
"computer account\nnamed "
"like this machine (%s) "
"exists in the domain\n"),
global_myname());
}
goto done;
}
TALLOC_FREE(netlogon_schannel_pipe);
}
TALLOC_FREE(pipe_hnd);
/* Now store the secret in the secrets database */
strupper_m(CONST_DISCARD(char *, domain));
if (!secrets_store_domain_sid(domain, domain_sid)) {
DEBUG(0, ("error storing domain sid for %s\n", domain));
goto done;
}
if (!secrets_store_machine_password(clear_trust_password, domain, sec_channel_type)) {
DEBUG(0, ("error storing plaintext domain secrets for %s\n", domain));
}
/* double-check, connection from scratch */
status = net_rpc_join_ok(c, domain, cli->desthost, &cli->dest_ss);
retval = NT_STATUS_IS_OK(status) ? 0 : -1;
done:
/* Display success or failure */
if (domain) {
if (retval != 0) {
fprintf(stderr,_("Unable to join domain %s.\n"),domain);
} else {
printf(_("Joined domain %s.\n"),domain);
}
}
cli_shutdown(cli);
TALLOC_FREE(clear_trust_password);
return retval;
}
struct test_join *torture_create_testuser(struct torture_context *torture,
const char *username,
const char *domain,
uint16_t acct_type,
const char **random_password)
{
NTSTATUS status;
struct samr_Connect c;
struct samr_CreateUser2 r;
struct samr_OpenDomain o;
struct samr_LookupDomain l;
struct dom_sid2 *sid = NULL;
struct samr_GetUserPwInfo pwp;
struct samr_PwInfo info;
struct samr_SetUserInfo s;
union samr_UserInfo u;
struct policy_handle handle;
struct policy_handle domain_handle;
uint32_t access_granted;
uint32_t rid;
DATA_BLOB session_key;
struct lsa_String name;
int policy_min_pw_len = 0;
struct test_join *join;
char *random_pw;
const char *dc_binding = torture_setting_string(torture, "dc_binding", NULL);
join = talloc(NULL, struct test_join);
if (join == NULL) {
return NULL;
}
ZERO_STRUCTP(join);
printf("Connecting to SAMR\n");
if (dc_binding) {
status = dcerpc_pipe_connect(join,
&join->p,
dc_binding,
&ndr_table_samr,
cmdline_credentials, NULL, torture->lp_ctx);
} else {
status = torture_rpc_connection(torture,
&join->p,
&ndr_table_samr);
}
if (!NT_STATUS_IS_OK(status)) {
return NULL;
}
c.in.system_name = NULL;
c.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
c.out.connect_handle = &handle;
status = dcerpc_samr_Connect(join->p, join, &c);
if (!NT_STATUS_IS_OK(status)) {
const char *errstr = nt_errstr(status);
if (NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
errstr = dcerpc_errstr(join, join->p->last_fault_code);
}
printf("samr_Connect failed - %s\n", errstr);
return NULL;
}
printf("Opening domain %s\n", domain);
name.string = domain;
l.in.connect_handle = &handle;
l.in.domain_name = &name;
l.out.sid = &sid;
status = dcerpc_samr_LookupDomain(join->p, join, &l);
if (!NT_STATUS_IS_OK(status)) {
printf("LookupDomain failed - %s\n", nt_errstr(status));
goto failed;
}
talloc_steal(join, *l.out.sid);
join->dom_sid = *l.out.sid;
join->dom_netbios_name = talloc_strdup(join, domain);
if (!join->dom_netbios_name) goto failed;
o.in.connect_handle = &handle;
o.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
o.in.sid = *l.out.sid;
o.out.domain_handle = &domain_handle;
status = dcerpc_samr_OpenDomain(join->p, join, &o);
if (!NT_STATUS_IS_OK(status)) {
printf("OpenDomain failed - %s\n", nt_errstr(status));
goto failed;
}
printf("Creating account %s\n", username);
again:
name.string = username;
r.in.domain_handle = &domain_handle;
r.in.account_name = &name;
r.in.acct_flags = acct_type;
r.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
r.out.user_handle = &join->user_handle;
r.out.access_granted = &access_granted;
r.out.rid = &rid;
status = dcerpc_samr_CreateUser2(join->p, join, &r);
if (NT_STATUS_EQUAL(status, NT_STATUS_USER_EXISTS)) {
status = DeleteUser_byname(join->p, join, &domain_handle, name.string);
if (NT_STATUS_IS_OK(status)) {
goto again;
}
}
if (!NT_STATUS_IS_OK(status)) {
printf("CreateUser2 failed - %s\n", nt_errstr(status));
goto failed;
}
join->user_sid = dom_sid_add_rid(join, join->dom_sid, rid);
pwp.in.user_handle = &join->user_handle;
pwp.out.info = &info;
status = dcerpc_samr_GetUserPwInfo(join->p, join, &pwp);
if (NT_STATUS_IS_OK(status)) {
policy_min_pw_len = pwp.out.info->min_password_length;
}
random_pw = generate_random_str(join, MAX(8, policy_min_pw_len));
printf("Setting account password '%s'\n", random_pw);
ZERO_STRUCT(u);
s.in.user_handle = &join->user_handle;
s.in.info = &u;
s.in.level = 24;
encode_pw_buffer(u.info24.password.data, random_pw, STR_UNICODE);
u.info24.password_expired = 0;
status = dcerpc_fetch_session_key(join->p, &session_key);
if (!NT_STATUS_IS_OK(status)) {
printf("SetUserInfo level %u - no session key - %s\n",
s.in.level, nt_errstr(status));
torture_leave_domain(torture, join);
goto failed;
}
arcfour_crypt_blob(u.info24.password.data, 516, &session_key);
status = dcerpc_samr_SetUserInfo(join->p, join, &s);
if (!NT_STATUS_IS_OK(status)) {
printf("SetUserInfo failed - %s\n", nt_errstr(status));
goto failed;
}
ZERO_STRUCT(u);
s.in.user_handle = &join->user_handle;
s.in.info = &u;
s.in.level = 21;
u.info21.acct_flags = acct_type | ACB_PWNOEXP;
u.info21.fields_present = SAMR_FIELD_ACCT_FLAGS | SAMR_FIELD_DESCRIPTION | SAMR_FIELD_COMMENT | SAMR_FIELD_FULL_NAME;
u.info21.comment.string = talloc_asprintf(join,
"Tortured by Samba4: %s",
timestring(join, time(NULL)));
u.info21.full_name.string = talloc_asprintf(join,
"Torture account for Samba4: %s",
timestring(join, time(NULL)));
u.info21.description.string = talloc_asprintf(join,
"Samba4 torture account created by host %s: %s",
lp_netbios_name(torture->lp_ctx),
timestring(join, time(NULL)));
printf("Resetting ACB flags, force pw change time\n");
status = dcerpc_samr_SetUserInfo(join->p, join, &s);
if (!NT_STATUS_IS_OK(status)) {
printf("SetUserInfo failed - %s\n", nt_errstr(status));
goto failed;
}
if (random_password) {
*random_password = random_pw;
}
return join;
failed:
torture_leave_domain(torture, join);
return NULL;
}
