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Diffstat (limited to 'source3/libsmb/domain_client_validate.c')
| -rw-r--r-- | source3/libsmb/domain_client_validate.c | 432 |
1 files changed, 0 insertions, 432 deletions
diff --git a/source3/libsmb/domain_client_validate.c b/source3/libsmb/domain_client_validate.c deleted file mode 100644 index df263e7ae9..0000000000 --- a/source3/libsmb/domain_client_validate.c +++ /dev/null @@ -1,432 +0,0 @@ -/* - Unix SMB/Netbios implementation. - Version 1.9. - Authenticate against a remote domain - Copyright (C) Andrew Tridgell 1992-1998 - Copyright (C) Andrew Bartlett 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" - -extern struct in_addr ipzero; - -extern pstring global_myname; - -/*********************************************************************** - Connect to a remote machine for domain security authentication - given a name or IP address. - ***********************************************************************/ - -static BOOL connect_to_domain_password_server(struct cli_state *pcli, - char *server, unsigned char *trust_passwd) -{ - struct in_addr dest_ip; - fstring remote_machine; - NTSTATUS result; - - if(cli_initialise(pcli) == NULL) { - DEBUG(0,("connect_to_domain_password_server: unable to initialize client connection.\n")); - return False; - } - - if (is_ipaddress(server)) { - struct in_addr to_ip; - - /* we shouldn't have 255.255.255.255 forthe IP address of - a password server anyways */ - if ((to_ip.s_addr=inet_addr(server)) == 0xFFFFFFFF) { - DEBUG (0,("connect_to_domain_password_server: inet_addr(%s) returned 0xFFFFFFFF!\n", server)); - return False; - } - - if (!name_status_find("*", 0x20, 0x20, to_ip, remote_machine)) { - DEBUG(0, ("connect_to_domain_password_server: Can't " - "resolve name for IP %s\n", server)); - return False; - } - } else { - fstrcpy(remote_machine, server); - } - - standard_sub_basic(remote_machine); - strupper(remote_machine); - - if(!resolve_name( remote_machine, &dest_ip, 0x20)) { - DEBUG(1,("connect_to_domain_password_server: Can't resolve address for %s\n", remote_machine)); - cli_shutdown(pcli); - return False; - } - - if (ismyip(dest_ip)) { - DEBUG(1,("connect_to_domain_password_server: Password server loop - not using password server %s\n", - remote_machine)); - cli_shutdown(pcli); - return False; - } - - if (!cli_connect(pcli, remote_machine, &dest_ip)) { - DEBUG(0,("connect_to_domain_password_server: unable to connect to SMB server on \ -machine %s. Error was : %s.\n", remote_machine, cli_errstr(pcli) )); - cli_shutdown(pcli); - return False; - } - - if (!attempt_netbios_session_request(pcli, global_myname, remote_machine, &dest_ip)) { - DEBUG(0,("connect_to_password_server: machine %s rejected the NetBIOS \ -session request. Error was : %s.\n", remote_machine, cli_errstr(pcli) )); - return False; - } - - pcli->protocol = PROTOCOL_NT1; - - if (!cli_negprot(pcli)) { - DEBUG(0,("connect_to_domain_password_server: machine %s rejected the negotiate protocol. \ -Error was : %s.\n", remote_machine, cli_errstr(pcli) )); - cli_shutdown(pcli); - return False; - } - - if (pcli->protocol != PROTOCOL_NT1) { - DEBUG(0,("connect_to_domain_password_server: machine %s didn't negotiate NT protocol.\n", - remote_machine)); - cli_shutdown(pcli); - return False; - } - - /* - * Do an anonymous session setup. - */ - - if (!cli_session_setup(pcli, "", "", 0, "", 0, "")) { - DEBUG(0,("connect_to_domain_password_server: machine %s rejected the session setup. \ -Error was : %s.\n", remote_machine, cli_errstr(pcli) )); - cli_shutdown(pcli); - return False; - } - - if (!(pcli->sec_mode & 1)) { - DEBUG(1,("connect_to_domain_password_server: machine %s isn't in user level security mode\n", - remote_machine)); - cli_shutdown(pcli); - return False; - } - - if (!cli_send_tconX(pcli, "IPC$", "IPC", "", 1)) { - DEBUG(0,("connect_to_domain_password_server: machine %s rejected the tconX on the IPC$ share. \ -Error was : %s.\n", remote_machine, cli_errstr(pcli) )); - cli_shutdown(pcli); - return False; - } - - /* - * We now have an anonymous connection to IPC$ on the domain password server. - */ - - /* - * Even if the connect succeeds we need to setup the netlogon - * pipe here. We do this as we may just have changed the domain - * account password on the PDC and yet we may be talking to - * a BDC that doesn't have this replicated yet. In this case - * a successful connect to a DC needs to take the netlogon connect - * into account also. This patch from "Bjart Kvarme" <bjart.kvarme@usit.uio.no>. - */ - - if(cli_nt_session_open(pcli, PIPE_NETLOGON) == False) { - DEBUG(0,("connect_to_domain_password_server: unable to open the domain client session to \ -machine %s. Error was : %s.\n", remote_machine, cli_errstr(pcli))); - cli_nt_session_close(pcli); - cli_ulogoff(pcli); - cli_shutdown(pcli); - return False; - } - - result = cli_nt_setup_creds(pcli, trust_passwd); - - if (!NT_STATUS_IS_OK(result)) { - DEBUG(0,("connect_to_domain_password_server: unable to setup the PDC credentials to machine \ -%s. Error was : %s.\n", remote_machine, get_nt_error_msg(result))); - cli_nt_session_close(pcli); - cli_ulogoff(pcli); - cli_shutdown(pcli); - return(False); - } - - return True; -} - -/*********************************************************************** - Utility function to attempt a connection to an IP address of a DC. -************************************************************************/ - -static BOOL attempt_connect_to_dc(struct cli_state *pcli, struct in_addr *ip, - unsigned char *trust_passwd) -{ - fstring dc_name; - - /* - * Ignore addresses we have already tried. - */ - - if (ip_equal(ipzero, *ip)) - return False; - - if (!lookup_pdc_name(global_myname, lp_workgroup(), ip, dc_name)) - return False; - - return connect_to_domain_password_server(pcli, dc_name, trust_passwd); -} - -/*********************************************************************** - We have been asked to dynamcially determine the IP addresses of - the PDC and BDC's for this DOMAIN, and query them in turn. -************************************************************************/ -static BOOL find_connect_pdc(struct cli_state *pcli, - unsigned char *trust_passwd, - time_t last_change_time) -{ - struct in_addr *ip_list = NULL; - int count = 0; - int i; - BOOL connected_ok = False; - time_t time_now = time(NULL); - BOOL use_pdc_only = False; - - /* - * If the time the machine password has changed - * was less than an hour ago then we need to contact - * the PDC only, as we cannot be sure domain replication - * has yet taken place. Bug found by Gerald (way to go - * Gerald !). JRA. - */ - - if (time_now - last_change_time < 3600) - use_pdc_only = True; - - if (!get_dc_list(use_pdc_only, lp_workgroup(), &ip_list, &count)) - return False; - - /* - * Firstly try and contact a PDC/BDC who has the same - * network address as any of our interfaces. - */ - for(i = 0; i < count; i++) { - if(!is_local_net(ip_list[i])) - continue; - - if((connected_ok = attempt_connect_to_dc(pcli, &ip_list[i], trust_passwd))) - break; - - ip_list[i] = ipzero; /* Tried and failed. */ - } - - /* - * Secondly try and contact a random PDC/BDC. - */ - if(!connected_ok) { - i = (sys_random() % count); - - if (!(connected_ok = attempt_connect_to_dc(pcli, &ip_list[i], trust_passwd))) - ip_list[i] = ipzero; /* Tried and failed. */ - } - - /* - * Finally go through the IP list in turn, ignoring any addresses - * we have already tried. - */ - if(!connected_ok) { - /* - * Try and connect to any of the other IP addresses in the PDC/BDC list. - * Note that from a WINS server the #1 IP address is the PDC. - */ - for(i = 0; i < count; i++) { - if((connected_ok = attempt_connect_to_dc(pcli, &ip_list[i], trust_passwd))) - break; - } - } - - SAFE_FREE(ip_list); - - - return connected_ok; -} - -/*********************************************************************** - Do the same as security=server, but using NT Domain calls and a session - key from the machine password. If the server parameter is specified - use it, otherwise figure out a server from the 'password server' param. -************************************************************************/ - -NTSTATUS domain_client_validate(const auth_usersupplied_info *user_info, - uchar chal[8], - auth_serversupplied_info **server_info, - char *server, unsigned char *trust_passwd, - time_t last_change_time) -{ - fstring remote_machine; - NET_ID_INFO_CTR ctr; - NET_USER_INFO_3 info3; - struct cli_state cli; - uint32 smb_uid_low; - BOOL connected_ok = False; - NTSTATUS status; - struct passwd *pass; - - /* - * Check that the requested domain is not our own machine name. - * If it is, we should never check the PDC here, we use our own local - * password file. - */ - - if(strequal(user_info->domain.str, global_myname)) { - DEBUG(3,("domain_client_validate: Requested domain was for this machine.\n")); - return NT_STATUS_LOGON_FAILURE; - } - - /* - * At this point, smb_apasswd points to the lanman response to - * the challenge in local_challenge, and smb_ntpasswd points to - * the NT response to the challenge in local_challenge. Ship - * these over the secure channel to a domain controller and - * see if they were valid. - */ - - ZERO_STRUCT(cli); - - while (!connected_ok && - next_token(&server,remote_machine,LIST_SEP,sizeof(remote_machine))) { - if(strequal(remote_machine, "*")) { - connected_ok = find_connect_pdc(&cli, trust_passwd, last_change_time); - } else { - connected_ok = connect_to_domain_password_server(&cli, remote_machine, trust_passwd); - } - } - - if (!connected_ok) { - DEBUG(0,("domain_client_validate: Domain password server not available.\n")); - cli_shutdown(&cli); - return NT_STATUS_LOGON_FAILURE; - } - - /* We really don't care what LUID we give the user. */ - generate_random_buffer( (unsigned char *)&smb_uid_low, 4, False); - - ZERO_STRUCT(info3); - - /* - * If this call succeeds, we now have lots of info about the user - * in the info3 structure. - */ - - status = cli_nt_login_network(&cli, user_info, chal, smb_uid_low, - &ctr, &info3); - - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0,("domain_client_validate: unable to validate password " - "for user %s in domain %s to Domain controller %s. " - "Error was %s.\n", user_info->smb_name.str, - user_info->domain.str, cli.srv_name_slash, - get_nt_error_msg(status))); - } else { - char *dom_user; - - /* Check DOMAIN\username first to catch winbind users, then - just the username for local users. */ - - asprintf(&dom_user, "%s%s%s", user_info->domain.str, - lp_winbind_separator(), - user_info->internal_username.str); - - if (!(pass = Get_Pwnam(dom_user))) - pass = Get_Pwnam(user_info->internal_username.str); - - free(dom_user); - - if (pass) { - make_server_info_pw(server_info, pass); - if (!server_info) { - status = NT_STATUS_NO_MEMORY; - } - } else { - status = NT_STATUS_NO_SUCH_USER; - } - } - - /* Store the user group information in the server_info returned to the caller. */ - - if (NT_STATUS_IS_OK(status) && (info3.num_groups2 != 0)) { - DOM_SID domain_sid; - int i; - NT_USER_TOKEN *ptok; - auth_serversupplied_info *pserver_info = *server_info; - - if ((pserver_info->ptok = malloc( sizeof(NT_USER_TOKEN) ) ) == NULL) { - DEBUG(0, ("domain_client_validate: out of memory allocating rid group membership\n")); - status = NT_STATUS_NO_MEMORY; - free_server_info(server_info); - goto done; - } - - ptok = pserver_info->ptok; - ptok->num_sids = (size_t)info3.num_groups2; - - if ((ptok->user_sids = (DOM_SID *)malloc( sizeof(DOM_SID) * ptok->num_sids )) == NULL) { - DEBUG(0, ("domain_client_validate: Out of memory allocating group SIDS\n")); - status = NT_STATUS_NO_MEMORY; - free_server_info(server_info); - goto done; - } - - if (!secrets_fetch_domain_sid(lp_workgroup(), &domain_sid)) { - DEBUG(0, ("domain_client_validate: unable to fetch domain sid.\n")); - status = NT_STATUS_NO_MEMORY; - free_server_info(server_info); - goto done; - } - - for (i = 0; i < ptok->num_sids; i++) { - sid_copy(&ptok->user_sids[i], &domain_sid); - sid_append_rid(&ptok->user_sids[i], info3.gids[i].g_rid); - } - } - -#if 0 - /* - * We don't actually need to do this - plus it fails currently with - * NT_STATUS_INVALID_INFO_CLASS - we need to know *exactly* what to - * send here. JRA. - */ - - if (NT_STATUS_IS_OK(status)) { - if(cli_nt_logoff(&cli, &ctr) == False) { - DEBUG(0,("domain_client_validate: unable to log off user %s in domain \ -%s to Domain controller %s. Error was %s.\n", user, domain, remote_machine, cli_errstr(&cli))); - status = NT_STATUS_LOGON_FAILURE; - } - } -#endif /* 0 */ - - done: - - /* Note - once the cli stream is shutdown the mem_ctx used - to allocate the other_sids and gids structures has been deleted - so - these pointers are no longer valid..... */ - - cli_nt_session_close(&cli); - cli_ulogoff(&cli); - cli_shutdown(&cli); - return status; -} |