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Diffstat (limited to 'source3/utils/net_rpc_join.c')
| -rw-r--r-- | source3/utils/net_rpc_join.c | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/source3/utils/net_rpc_join.c b/source3/utils/net_rpc_join.c new file mode 100644 index 0000000000..11e878fdf4 --- /dev/null +++ b/source3/utils/net_rpc_join.c @@ -0,0 +1,311 @@ +/* + Samba Unix/Linux SMB client library + Version 3.0 + Distributed SMB/CIFS Server Management Utility + Copyright (C) 2001 Andrew Bartlett (abartlet@samba.org) + Copyright (C) Tim Potter 2001 + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include "includes.h" +#include "../utils/net.h" + +/* Macro for checking RPC error codes to make things more readable */ + +#define CHECK_RPC_ERR(rpc, msg) \ + if (!NT_STATUS_IS_OK(result = rpc)) { \ + DEBUG(0, (msg ": %s\n", get_nt_error_msg(result))); \ + goto done; \ + } + +#define CHECK_RPC_ERR_DEBUG(rpc, debug_args) \ + if (!NT_STATUS_IS_OK(result = rpc)) { \ + DEBUG(0, debug_args); \ + goto done; \ + } + +/********************************************************* +Join a domain using the administrator username and password +**********************************************************/ + +int net_rpc_join(int argc, const char **argv) +{ + + extern pstring global_myname; + + /* libsmb variables */ + + struct cli_state *cli; + fstring acct_name; + TALLOC_CTX *mem_ctx; + uint32 acb_info; + + /* 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; + fstring ucs2_trust_password; + int ucs2_pw_len; + uchar stored_md4_trust_password[16]; + uchar pwbuf[516], sess_key[16]; + SAM_USERINFO_CTR ctr; + SAM_USER_INFO_24 p24; + SAM_USER_INFO_10 p10; + + /* Misc */ + + NTSTATUS result; + int retval = 1; + fstring domain; + + /* Connect to remote machine */ + + if (!(cli = net_make_ipc_connection(NET_FLAGS_PDC))) + return 1; + + if (!(mem_ctx = talloc_init())) { + DEBUG(0, ("Could not initialise talloc context\n")); + 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); + + acb_info = (lp_server_role() == ROLE_DOMAIN_BDC) ? ACB_SVRTRUST : + ACB_WSTRUST; + + { + uint32 unknown = 0xe005000b; + + result = cli_samr_create_dom_user(cli, mem_ctx, &domain_pol, + acct_name, acb_info, + unknown, &user_pol, + &user_rid); + + /* 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_EQUAL(result, NT_STATUS_USER_EXISTS)) { + uint32 num_rids, *name_types, *user_rids; + uint32 flags = 0x3e8; + 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 */ + + clear_trust_password = generate_random_str(15); + clear_trust_password = strdup("samba2"); + + ucs2_pw_len = push_ucs2(NULL, ucs2_trust_password, + clear_trust_password, + sizeof(ucs2_trust_password), 0); + +#if DEBUG_PASSWORD + DEBUG(100, ("machine password is being set to:\n")); + dump_data(100, clear_trust_password, 6); + + DEBUG(100, ("machine password unicode is (len %d):\n", ucs2_pw_len)); + dump_data(100, ucs2_trust_password, ucs2_pw_len); + +#endif + + encode_pw_buffer((char *)pwbuf, ucs2_trust_password, + ucs2_pw_len); + + /* 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_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, + sess_key, &ctr); + + /* Now store the secret in the secrets database */ + + strupper(domain); + + secrets_init(); + + 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)) { + DEBUG(0, ("error storing plaintext domain secrets for %s\n", domain)); + } + + /* 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, PIPE_NETLOGON)) { + DEBUG(0, ("Error connecting to NETLOGON pipe\n")); + goto done; + } + + if (!secrets_fetch_trust_account_password(domain, + stored_md4_trust_password, NULL)) { + DEBUG(0, ("Could not reterive secrets we just stored!")); + goto done; + } + + CHECK_RPC_ERR(cli_nt_setup_creds(cli, stored_md4_trust_password), + "error in domain join verification"); + + 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); + } + + cli_shutdown(cli); + + SAFE_FREE(clear_trust_password); + + return retval; +} + + |