Ejemplo n.º 1
0
int net_rpc_join_newstyle(int argc, const char **argv) 
{

	/* libsmb variables */

	struct cli_state *cli;
	TALLOC_CTX *mem_ctx;
        uint32 acb_info = ACB_WSTRUST;
	uint32 sec_channel_type;

	/* rpc variables */

	POLICY_HND lsa_pol, sam_pol, domain_pol, user_pol;
	DOM_SID *domain_sid;
	uint32 user_rid;

	/* Password stuff */

	char *clear_trust_password = NULL;
	uchar pwbuf[516];
	SAM_USERINFO_CTR ctr;
	SAM_USER_INFO_24 p24;
	SAM_USER_INFO_10 p10;
	uchar md4_trust_password[16];

	/* Misc */

	NTSTATUS result;
	int retval = 1;
	char *domain;
	uint32 num_rids, *name_types, *user_rids;
	uint32 flags = 0x3e8;
	char *acct_name;
	const char *const_acct_name;

	/* 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
	}

	/* Connect to remote machine */

	if (!(cli = net_make_ipc_connection(NET_FLAGS_PDC))) 
		return 1;

	if (!(mem_ctx = talloc_init("net_rpc_join_newstyle"))) {
		DEBUG(0, ("Could not initialise talloc context\n"));
		goto done;
	}

	/* Fetch domain sid */

	if (!cli_nt_session_open(cli, PI_LSARPC)) {
		DEBUG(0, ("Error connecting to LSA pipe\n"));
		goto done;
	}


	CHECK_RPC_ERR(cli_lsa_open_policy(cli, mem_ctx, True,
					  SEC_RIGHTS_MAXIMUM_ALLOWED,
					  &lsa_pol),
		      "error opening lsa policy handle");

	CHECK_RPC_ERR(cli_lsa_query_info_policy(cli, mem_ctx, &lsa_pol,
						5, &domain, &domain_sid),
		      "error querying info policy");

	cli_lsa_close(cli, mem_ctx, &lsa_pol);

	cli_nt_session_close(cli); /* Done with this pipe */

	/* Create domain user */
	if (!cli_nt_session_open(cli, PI_SAMR)) {
		DEBUG(0, ("Error connecting to SAM pipe\n"));
		goto done;
	}

	CHECK_RPC_ERR(cli_samr_connect(cli, mem_ctx, 
				       SEC_RIGHTS_MAXIMUM_ALLOWED,
				       &sam_pol),
		      "could not connect to SAM database");

	
	CHECK_RPC_ERR(cli_samr_open_domain(cli, mem_ctx, &sam_pol,
					   SEC_RIGHTS_MAXIMUM_ALLOWED,
					   domain_sid, &domain_pol),
		      "could not open domain");

	/* Create domain user */
	acct_name = talloc_asprintf(mem_ctx, "%s$", global_myname()); 
	strlower_m(acct_name);
	const_acct_name = acct_name;

	result = cli_samr_create_dom_user(cli, mem_ctx, &domain_pol,
					  acct_name, acb_info,
					  0xe005000b, &user_pol, 
					  &user_rid);

	if (!NT_STATUS_IS_OK(result) && 
	    !NT_STATUS_EQUAL(result, NT_STATUS_USER_EXISTS)) {
		d_printf("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_printf("User specified does not have administrator privileges\n");

		goto done;
	}

	/* We *must* do this.... don't ask... */

	if (NT_STATUS_IS_OK(result))
		cli_samr_close(cli, mem_ctx, &user_pol);

	CHECK_RPC_ERR_DEBUG(cli_samr_lookup_names(cli, mem_ctx,
						  &domain_pol, flags,
						  1, &const_acct_name, 
						  &num_rids,
						  &user_rids, &name_types),
			    ("error looking up rid for user %s: %s\n",
			     acct_name, nt_errstr(result)));

	if (name_types[0] != SID_NAME_USER) {
		DEBUG(0, ("%s is not a user account (type=%d)\n", acct_name, name_types[0]));
		goto done;
	}

	user_rid = user_rids[0];
		
	/* Open handle on user */

	CHECK_RPC_ERR_DEBUG(
		cli_samr_open_user(cli, mem_ctx, &domain_pol,
				   SEC_RIGHTS_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 */

	{ 
		char *str;
		str = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
		clear_trust_password = SMB_STRDUP(str);
		E_md4hash(clear_trust_password, md4_trust_password);
	}

	encode_pw_buffer(pwbuf, clear_trust_password, STR_UNICODE);

	/* Set password on machine account */

	ZERO_STRUCT(ctr);
	ZERO_STRUCT(p24);

	init_sam_user_info24(&p24, (char *)pwbuf,24);

	ctr.switch_value = 24;
	ctr.info.id24 = &p24;

	CHECK_RPC_ERR(cli_samr_set_userinfo(cli, mem_ctx, &user_pol, 24, 
					    &cli->user_session_key, &ctr),
		      "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 */

	ZERO_STRUCT(ctr);
	ctr.switch_value = 0x10;
	ctr.info.id10 = &p10;

	init_sam_user_info10(&p10, acb_info);

	/* Ignoring the return value is necessary for joining a domain
	   as a normal user with "Add workstation to domain" privilege. */

	result = cli_samr_set_userinfo2(cli, mem_ctx, &user_pol, 0x10, 
					&cli->user_session_key, &ctr);

	/* Now check the whole process from top-to-bottom */
	cli_samr_close(cli, mem_ctx, &user_pol);
	cli_nt_session_close(cli); /* Done with this pipe */

	if (!cli_nt_session_open(cli, PI_NETLOGON)) {
		DEBUG(0,("Error connecting to NETLOGON pipe\n"));
		goto done;
	}

	/* ensure that schannel uses the right domain */
	fstrcpy(cli->domain, domain);

	result = cli_nt_establish_netlogon(cli, sec_channel_type, 
					   md4_trust_password);

	if (!NT_STATUS_IS_OK(result)) {
		DEBUG(0, ("Error domain join verification (reused connection): %s\n\n",
			  nt_errstr(result)));

		if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) &&
		     (sec_channel_type == SEC_CHAN_BDC) ) {
			d_printf("Please make sure that no computer account\n"
				 "named like this machine (%s) exists in the domain\n",
				 global_myname());
		}

		goto done;
	}

	/* Now store the secret in the secrets database */

	strupper_m(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 */
	retval = net_rpc_join_ok(domain);
	
done:
	/* Close down pipe - this will clean up open policy handles */

	if (cli->nt_pipe_fnum[cli->pipe_idx])
		cli_nt_session_close(cli);

	/* Display success or failure */

	if (retval != 0) {
		fprintf(stderr,"Unable to join domain %s.\n",domain);
	} else {
		printf("Joined domain %s.\n",domain);
	}
	
	cli_shutdown(cli);

	SAFE_FREE(clear_trust_password);

	return retval;
}
Ejemplo n.º 2
0
static int join_domain_byuser(char *domain, const char *remote,
			      char *username, char *password)
{
	/* libsmb variables */

	pstring pdc_name;
	struct nmb_name calling, called;
	struct ntuser_creds creds;
	struct cli_state cli;
	fstring acct_name;
	struct in_addr dest_ip;
	TALLOC_CTX *mem_ctx;

	/* rpc variables */

	POLICY_HND lsa_pol, sam_pol, domain_pol, user_pol;
	DOM_SID domain_sid;
	uint32 user_rid;

	/* Password stuff */

	char *machine_pwd;
	int plen = 0;
	uchar pwbuf[516], ntpw[16], sess_key[16];
	SAM_USERINFO_CTR ctr;
	SAM_USER_INFO_24 p24;
	SAM_USER_INFO_10 p10;

	/* Misc */

	NTSTATUS result;
	int retval = 1;

	pstrcpy(pdc_name, remote ? remote : "");

	/* Connect to remote machine */

	ZERO_STRUCT(cli);
	ZERO_STRUCT(creds);
	ZERO_STRUCT(dest_ip); /* Make sure no nasty surprises */

	if (!(mem_ctx = talloc_init())) {
		DEBUG(0, ("Could not initialise talloc context\n"));
		goto done;
	}

	if (!cli_initialise(&cli)) {
		DEBUG(0, ("Could not initialise client structure\n"));
		goto done;
	}

	init_rpcclient_creds(&creds, username, domain, password);
	cli_init_creds(&cli, &creds);

	/*
	 * If we are given a remote machine assume this is the PDC.
	 */
	
	if(remote == NULL || !strcmp(remote, "*")) {
                struct in_addr *ip_list;
                int addr_count;
                if (!get_dc_list(True /* PDC only*/, domain, &ip_list, &addr_count)) {
			fprintf(stderr, "Unable to find the domain controller for domain %s.\n", domain);
			return 1;
		}
		if ((addr_count < 1) || (is_zero_ip(ip_list[0]))) {
			fprintf(stderr, "Incorrect entries returned when finding the domain controller for domain %s.\n", domain);
			return 1;
		}

		if (!lookup_dc_name(global_myname, domain, &ip_list[0], pdc_name)) {
			fprintf(stderr, "Unable to lookup the name for the domain controller for domain %s.\n", domain);
			return 1;
		}
		dest_ip = ip_list[0];
	}

	make_nmb_name(&called, pdc_name, 0x20);
	make_nmb_name(&calling, dns_to_netbios_name(global_myname), 0);

	if (!cli_establish_connection(&cli, pdc_name, &dest_ip, &calling, 
				      &called, "IPC$", "IPC", False, True)) {
		if (!NT_STATUS_IS_OK(cli_nt_error(&cli))) {
			DEBUG(0, ("Error connecting to %s - %s\n", pdc_name,cli_errstr(&cli)));
		} else {
			DEBUG(0, ("Error connecting to %s\n", pdc_name));
		}
		goto done;
	}

	/* Fetch domain sid */

	if (!cli_nt_session_open(&cli, PIPE_LSARPC)) {
		DEBUG(0, ("Error connecting to SAM pipe\n"));
		goto done;
	}


	CHECK_RPC_ERR(cli_lsa_open_policy(&cli, mem_ctx, True,
					  SEC_RIGHTS_MAXIMUM_ALLOWED,
					  &lsa_pol),
		      "error opening lsa policy handle");

	CHECK_RPC_ERR(cli_lsa_query_info_policy(&cli, mem_ctx, &lsa_pol,
						5, domain, &domain_sid),
		      "error querying info policy");

	cli_lsa_close(&cli, mem_ctx, &lsa_pol);

	cli_nt_session_close(&cli); /* Done with this pipe */

	/* Create domain user */

	if (!cli_nt_session_open(&cli, PIPE_SAMR)) {
		DEBUG(0, ("Error connecting to SAM pipe\n"));
		goto done;
	}

	CHECK_RPC_ERR(cli_samr_connect(&cli, mem_ctx, 
				       SEC_RIGHTS_MAXIMUM_ALLOWED,
				       &sam_pol),
		      "could not connect to SAM database");

	
	CHECK_RPC_ERR(cli_samr_open_domain(&cli, mem_ctx, &sam_pol,
					   SEC_RIGHTS_MAXIMUM_ALLOWED,
					   &domain_sid, &domain_pol),
		      "could not open domain");

	/* Create domain user */

	fstrcpy(acct_name, global_myname);
	fstrcat(acct_name, "$");

	strlower(acct_name);

	{
		uint32 unknown = 0xe005000b;

		result = cli_samr_create_dom_user(&cli, mem_ctx, &domain_pol,
						  acct_name, ACB_WSTRUST,
						  unknown, &user_pol, 
						  &user_rid);
	}


	if (NT_STATUS_IS_OK(result)) {

		/* We *must* do this.... don't ask... */
	  
		CHECK_RPC_ERR_DEBUG(cli_samr_close(&cli, mem_ctx, &user_pol), ("error closing user policy"));
		result = NT_STATUS_USER_EXISTS;
	}

	if (NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_USER_EXISTS)) {
		uint32 num_rids, *name_types, *user_rids;
		uint32 flags = 0x3e8;
		const char *names;
		
		/* Look up existing rid */
		
		names = (char *)&acct_name[0];

		CHECK_RPC_ERR_DEBUG(
			cli_samr_lookup_names(&cli, mem_ctx,
					      &domain_pol, flags,
					      1, &names, &num_rids,
					      &user_rids, &name_types),
			("error looking up rid for user %s: %s\n",
			 acct_name, get_nt_error_msg(result)));

		if (name_types[0] != SID_NAME_USER) {
			DEBUG(0, ("%s is not a user account\n", acct_name));
			goto done;
		}

		user_rid = user_rids[0];
		
		/* Open handle on user */

		CHECK_RPC_ERR_DEBUG(
			cli_samr_open_user(&cli, mem_ctx, &domain_pol,
					   SEC_RIGHTS_MAXIMUM_ALLOWED,
					   user_rid, &user_pol),
			("could not re-open existing user %s: %s\n",
			 acct_name, get_nt_error_msg(result)));
		
	} else if (!NT_STATUS_IS_OK(result)) {
		DEBUG(0, ("error creating domain user: %s\n",
			  get_nt_error_msg(result)));
		goto done;
	}

	/* Create a random machine account password */

	{
		UNISTR2 upw;	/* Unicode password */

		upw.buffer = (uint16 *)talloc_zero(mem_ctx, 0xc * 
						   sizeof(uint16));

		upw.uni_str_len = 0xc;
		upw.uni_max_len = 0xc;

		machine_pwd = (char *)upw.buffer;
		plen = upw.uni_str_len * 2;
		generate_random_buffer((unsigned char *)machine_pwd, plen, True);

		encode_pw_buffer((char *)pwbuf, machine_pwd, plen, False);

		mdfour( ntpw, (unsigned char *)upw.buffer, plen);
	}

	/* Set password on machine account */

	ZERO_STRUCT(ctr);
	ZERO_STRUCT(p24);

	init_sam_user_info24(&p24, (char *)pwbuf,24);

	ctr.switch_value = 24;
	ctr.info.id24 = &p24;

	/* I don't think this is quite the right place for this
	   calculation.  It should be moved somewhere where the credentials
	   are calculated. )-: */

	mdfour(sess_key, cli.pwd.smb_nt_pwd, 16);

	CHECK_RPC_ERR(cli_samr_set_userinfo(&cli, mem_ctx, &user_pol, 24, 
					    sess_key, &ctr),
		      "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 */

	ZERO_STRUCT(ctr);
	ctr.switch_value = 0x10;
	ctr.info.id10 = &p10;

	init_sam_user_info10(&p10, ACB_WSTRUST);

	/* Ignoring the return value is necessary for joining a domain
	   as a normal user with "Add workstation to domain" privilege. */

	result = cli_samr_set_userinfo2(&cli, mem_ctx, &user_pol, 0x10, 
					sess_key, &ctr);

	/* Now store the secret in the secrets database */

	strupper(domain);

	if (!secrets_store_domain_sid(domain, &domain_sid) ||
	    !secrets_store_trust_account_password(domain, ntpw)) {
		DEBUG(0, ("error storing domain secrets\n"));
		goto done;
	}

	retval = 0;		/* Success! */

 done:
	/* Close down pipe - this will clean up open policy handles */

	if (cli.nt_pipe_fnum)
		cli_nt_session_close(&cli);

	/* Display success or failure */

	if (retval != 0) {
		trust_password_delete(domain);
		fprintf(stderr,"Unable to join domain %s.\n",domain);
	} else {
		printf("Joined domain %s.\n",domain);
	}
	
	return retval;
}