+++ /dev/null
-/*
- Samba Unix/Linux SMB client library
- Distributed SMB/CIFS Server Management Utility
- Copyright (C) 2001 Andrew Bartlett (abartlet@samba.org)
- Copyright (C) Tim Potter 2001
- Copyright (C) 2008 Guenther Deschner
-
- 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 "utils/net.h"
-#include "rpc_client/cli_pipe.h"
-#include "../libcli/auth/libcli_auth.h"
-#include "../librpc/gen_ndr/ndr_lsa_c.h"
-#include "rpc_client/cli_lsarpc.h"
-#include "../librpc/gen_ndr/ndr_samr_c.h"
-#include "rpc_client/init_samr.h"
-#include "../librpc/gen_ndr/ndr_netlogon.h"
-#include "rpc_client/cli_netlogon.h"
-#include "secrets.h"
-#include "rpc_client/init_lsa.h"
-#include "libsmb/libsmb.h"
-#include "../libcli/smb/smbXcli_base.h"
-
-/* Macro for checking RPC error codes to make things more readable */
-
-#define CHECK_RPC_ERR(rpc, msg) \
- if (!NT_STATUS_IS_OK(status = rpc)) { \
- DEBUG(0, (msg ": %s\n", nt_errstr(status))); \
- goto done; \
- }
-
-#define CHECK_DCERPC_ERR(rpc, msg) \
- if (!NT_STATUS_IS_OK(status = rpc)) { \
- DEBUG(0, (msg ": %s\n", nt_errstr(status))); \
- goto done; \
- } \
- if (!NT_STATUS_IS_OK(result)) { \
- status = result; \
- DEBUG(0, (msg ": %s\n", nt_errstr(result))); \
- goto done; \
- }
-
-
-#define CHECK_RPC_ERR_DEBUG(rpc, debug_args) \
- if (!NT_STATUS_IS_OK(status = rpc)) { \
- DEBUG(0, debug_args); \
- goto done; \
- }
-
-#define CHECK_DCERPC_ERR_DEBUG(rpc, debug_args) \
- if (!NT_STATUS_IS_OK(status = rpc)) { \
- DEBUG(0, debug_args); \
- goto done; \
- } \
- if (!NT_STATUS_IS_OK(result)) { \
- status = result; \
- DEBUG(0, debug_args); \
- goto done; \
- }
-
-
-/**
- * confirm that a domain join is still valid
- *
- * @return A shell status integer (0 for success)
- *
- **/
-NTSTATUS net_rpc_join_ok(struct net_context *c, const char *domain,
- const char *server,
- const struct sockaddr_storage *server_ss)
-{
- enum security_types sec;
- unsigned int conn_flags = NET_FLAGS_PDC;
- 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 ntret = NT_STATUS_UNSUCCESSFUL;
-
- sec = (enum security_types)lp_security();
-
- if (sec == SEC_ADS) {
- /* Connect to IPC$ using machine account's credentials. We don't use anonymous
- connection here, as it may be denied by server's local policy. */
- net_use_machine_account(c);
-
- } else {
- /* some servers (e.g. WinNT) don't accept machine-authenticated
- smb connections */
- conn_flags |= NET_FLAGS_ANONYMOUS;
- }
-
- /* Connect to remote machine */
- ntret = net_make_ipc_connection_ex(c, domain, server, server_ss,
- conn_flags, &cli);
- if (!NT_STATUS_IS_OK(ntret)) {
- return ntret;
- }
-
- /* Setup the creds as though we're going to do schannel... */
- ntret = get_schannel_session_key(cli, domain, &neg_flags,
- &netlogon_pipe);
-
- /* We return NT_STATUS_INVALID_NETWORK_RESPONSE if the server is refusing
- to negotiate schannel, but the creds were set up ok. That'll have to do. */
-
- if (!NT_STATUS_IS_OK(ntret)) {
- if (NT_STATUS_EQUAL(ntret, NT_STATUS_INVALID_NETWORK_RESPONSE)) {
- cli_shutdown(cli);
- return NT_STATUS_OK;
- } else {
- DEBUG(0,("net_rpc_join_ok: failed to get schannel session "
- "key from server %s for domain %s. Error was %s\n",
- smbXcli_conn_remote_name(cli->conn), domain, nt_errstr(ntret) ));
- cli_shutdown(cli);
- return ntret;
- }
- }
-
- /* Only do the rest of the schannel test if the client is allowed to do this. */
- if (!lp_client_schannel()) {
- cli_shutdown(cli);
- /* We're good... */
- return ntret;
- }
-
- ntret = cli_rpc_pipe_open_schannel_with_key(
- cli, &ndr_table_netlogon, NCACN_NP,
- DCERPC_AUTH_LEVEL_PRIVACY,
- domain, &netlogon_pipe->dc, &pipe_hnd);
-
- if (!NT_STATUS_IS_OK(ntret)) {
- DEBUG(0,("net_rpc_join_ok: failed to open schannel session "
- "on netlogon pipe to server %s for domain %s. Error was %s\n",
- smbXcli_conn_remote_name(cli->conn), domain, nt_errstr(ntret) ));
- /*
- * Note: here, we have:
- * (pipe_hnd != NULL) if and only if NT_STATUS_IS_OK(ntret)
- */
- }
-
- cli_shutdown(cli);
- return ntret;
-}
-
-/**
- * Join a domain using the administrator username and password
- *
- * @param argc Standard main() style argc
- * @param argc Standard main() style argv. Initial components are already
- * stripped. Currently not used.
- * @return A shell status integer (0 for success)
- *
- **/
-
-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 */
-
- DATA_BLOB session_key = data_blob_null;
- 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,
- &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,
- &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;
-
- status = cli_get_session_key(mem_ctx, pipe_hnd, &session_key);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("Error getting session_key of SAM pipe. Error was %s\n",
- nt_errstr(status)));
- goto done;
- }
-
- 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$", lp_netbios_name())) == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto done;
- }
- if (!strlower_m(acct_name)) {
- status = NT_STATUS_INVALID_PARAMETER;
- goto done;
- }
-
- 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 (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_password(talloc_tos(),
- DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
- DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
- E_md4hash(clear_trust_password, md4_trust_password);
-
- /* Set password on machine account */
-
- init_samr_CryptPassword(clear_trust_password,
- &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,
- &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,
- pipe_hnd->desthost, /* server name */
- domain, /* domain */
- lp_netbios_name(), /* client name */
- lp_netbios_name(), /* 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"),
- lp_netbios_name());
- }
-
- 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, 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"),
- lp_netbios_name());
- }
-
- goto done;
- }
- TALLOC_FREE(netlogon_schannel_pipe);
- }
-
- TALLOC_FREE(pipe_hnd);
-
- /* Now store the secret in the secrets database */
-
- if (!strupper_m(discard_const_p(char, domain))) {
- DEBUG(0, ("strupper_m %s failed\n", domain));
- goto done;
- }
-
- 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, smbXcli_conn_remote_name(cli->conn),
- smbXcli_conn_remote_sockaddr(cli->conn));
- 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);
- data_blob_clear_free(&session_key);
-
- return retval;
-}
git.samba.org / metze / samba / wip.git / commitdiff