static NTSTATUS libnetapi_samr_lookup_and_open_alias(TALLOC_CTX *mem_ctx,
struct rpc_pipe_client *pipe_cli,
struct policy_handle *domain_handle,
const char *group_name,
uint32_t access_rights,
struct policy_handle *alias_handle)
{
NTSTATUS status;
struct lsa_String lsa_account_name;
struct samr_Ids user_rids, name_types;
init_lsa_String(&lsa_account_name, group_name);
status = rpccli_samr_LookupNames(pipe_cli, mem_ctx,
domain_handle,
1,
&lsa_account_name,
&user_rids,
&name_types);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
switch (name_types.ids[0]) {
case SID_NAME_ALIAS:
case SID_NAME_WKN_GRP:
break;
default:
return NT_STATUS_INVALID_SID;
}
return rpccli_samr_OpenAlias(pipe_cli, mem_ctx,
domain_handle,
access_rights,
user_rids.ids[0],
alias_handle);
}
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;
uint32 sec_channel_type;
struct rpc_pipe_client *pipe_hnd = NULL;
/* rpc variables */
struct policy_handle lsa_pol, sam_pol, domain_pol, user_pol;
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 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
}
/* Make authenticated connection to remote machine */
result = net_make_ipc_connection(c, NET_FLAGS_PDC, &cli);
if (!NT_STATUS_IS_OK(result)) {
return 1;
}
if (!(mem_ctx = talloc_init("net_rpc_join_newstyle"))) {
DEBUG(0, ("Could not initialise talloc context\n"));
goto done;
}
/* Fetch domain sid */
result = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
&pipe_hnd);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(0, ("Error connecting to LSA pipe. Error was %s\n",
nt_errstr(result) ));
goto done;
}
CHECK_RPC_ERR(rpccli_lsa_open_policy(pipe_hnd, mem_ctx, true,
SEC_FLAG_MAXIMUM_ALLOWED,
&lsa_pol),
"error opening lsa policy handle");
CHECK_RPC_ERR(rpccli_lsa_QueryInfoPolicy(pipe_hnd, mem_ctx,
&lsa_pol,
LSA_POLICY_INFO_ACCOUNT_DOMAIN,
&info),
"error querying info policy");
domain = info->account_domain.name.string;
domain_sid = info->account_domain.sid;
rpccli_lsa_Close(pipe_hnd, mem_ctx, &lsa_pol);
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 */
result = cli_rpc_pipe_open_noauth(cli, &ndr_table_samr.syntax_id,
&pipe_hnd);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(0, ("Error connecting to SAM pipe. Error was %s\n",
nt_errstr(result) ));
goto done;
}
CHECK_RPC_ERR(rpccli_samr_Connect2(pipe_hnd, mem_ctx,
pipe_hnd->desthost,
SAMR_ACCESS_ENUM_DOMAINS
| SAMR_ACCESS_LOOKUP_DOMAIN,
&sam_pol),
"could not connect to SAM database");
CHECK_RPC_ERR(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,
domain_sid,
&domain_pol),
"could not open domain");
/* Create domain user */
if ((acct_name = talloc_asprintf(mem_ctx, "%s$", global_myname())) == NULL) {
result = 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));
result = rpccli_samr_CreateUser2(pipe_hnd, mem_ctx,
&domain_pol,
&lsa_acct_name,
acb_info,
acct_flags,
&user_pol,
&access_granted,
&user_rid);
if (!NT_STATUS_IS_OK(result) &&
!NT_STATUS_EQUAL(result, NT_STATUS_USER_EXISTS)) {
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)) {
rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
}
CHECK_RPC_ERR_DEBUG(rpccli_samr_LookupNames(pipe_hnd, mem_ctx,
&domain_pol,
1,
&lsa_acct_name,
&user_rids,
&name_types),
("error looking up rid for user %s: %s\n",
acct_name, nt_errstr(result)));
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_RPC_ERR_DEBUG(
rpccli_samr_OpenUser(pipe_hnd, mem_ctx,
&domain_pol,
SEC_FLAG_MAXIMUM_ALLOWED,
user_rid,
&user_pol),
("could not re-open existing user %s: %s\n",
acct_name, 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_RPC_ERR(rpccli_samr_SetUserInfo2(pipe_hnd, mem_ctx,
&user_pol,
24,
&set_info),
"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. */
result = rpccli_samr_SetUserInfo(pipe_hnd, mem_ctx,
&user_pol,
16,
&set_info);
rpccli_samr_Close(pipe_hnd, mem_ctx, &user_pol);
TALLOC_FREE(pipe_hnd); /* Done with this pipe */
/* Now check the whole process from top-to-bottom */
result = cli_rpc_pipe_open_noauth(cli, &ndr_table_netlogon.syntax_id,
&pipe_hnd);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(0,("Error connecting to NETLOGON pipe. Error was %s\n",
nt_errstr(result) ));
goto done;
}
result = 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(result)) {
DEBUG(0, ("Error in domain join verification (credential setup failed): %s\n\n",
nt_errstr(result)));
if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) &&
(sec_channel_type == SEC_CHAN_BDC) ) {
d_fprintf(stderr, "Please make sure that no computer account\n"
"named 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;
result = cli_rpc_pipe_open_schannel_with_key(
cli, &ndr_table_netlogon.syntax_id,
PIPE_AUTH_LEVEL_PRIVACY, domain, pipe_hnd->dc,
&netlogon_schannel_pipe);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(0, ("Error in domain join verification (schannel setup failed): %s\n\n",
nt_errstr(result)));
if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) &&
(sec_channel_type == SEC_CHAN_BDC) ) {
d_fprintf(stderr, "Please make sure that no computer account\n"
"named 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 */
result = net_rpc_join_ok(c, domain, cli->desthost, &cli->dest_ss);
retval = NT_STATUS_IS_OK(result) ? 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;
}
