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
+ 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,
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.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
+#include "../libcli/auth/libcli_auth.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
-extern BOOL global_machine_password_needs_changing;
+extern bool global_machine_password_needs_changing;
+static struct named_mutex *mutex;
+
+/*
+ * Change machine password (called from main loop
+ * idle timeout. Must be done as root.
+ */
+
+void attempt_machine_password_change(void)
+{
+ unsigned char trust_passwd_hash[16];
+ time_t lct;
+ void *lock;
+
+ if (!global_machine_password_needs_changing) {
+ return;
+ }
+
+ if (lp_security() != SEC_DOMAIN) {
+ return;
+ }
+
+ /*
+ * We're in domain level security, and the code that
+ * read the machine password flagged that the machine
+ * password needs changing.
+ */
+
+ /*
+ * First, open the machine password file with an exclusive lock.
+ */
+
+ lock = secrets_get_trust_account_lock(NULL, lp_workgroup());
+
+ if (lock == NULL) {
+ DEBUG(0,("attempt_machine_password_change: unable to lock "
+ "the machine account password for machine %s in "
+ "domain %s.\n",
+ global_myname(), lp_workgroup() ));
+ return;
+ }
+
+ if(!secrets_fetch_trust_account_password(lp_workgroup(),
+ trust_passwd_hash, &lct, NULL)) {
+ DEBUG(0,("attempt_machine_password_change: unable to read the "
+ "machine account password for %s in domain %s.\n",
+ global_myname(), lp_workgroup()));
+ TALLOC_FREE(lock);
+ return;
+ }
+
+ /*
+ * Make sure someone else hasn't already done this.
+ */
+
+ if(time(NULL) < lct + lp_machine_password_timeout()) {
+ global_machine_password_needs_changing = false;
+ TALLOC_FREE(lock);
+ return;
+ }
+
+ /* always just contact the PDC here */
+
+ change_trust_account_password( lp_workgroup(), NULL);
+ global_machine_password_needs_changing = false;
+ TALLOC_FREE(lock);
+}
/**
* Connect to a remote server for (inter)domain security authenticaion.
*
**/
-static NTSTATUS connect_to_domain_password_server(struct cli_state **cli,
- const char *domain, const char *dc_name,
- struct in_addr dc_ip,
- const char *setup_creds_as,
- uint16 sec_chan,
- const unsigned char *trust_passwd,
- BOOL *retry)
+static NTSTATUS connect_to_domain_password_server(struct cli_state **cli,
+ const char *domain,
+ const char *dc_name,
+ struct sockaddr_storage *dc_ss,
+ struct rpc_pipe_client **pipe_ret,
+ bool *retry)
{
NTSTATUS result;
+ struct rpc_pipe_client *netlogon_pipe = NULL;
+
+ *cli = NULL;
+
+ *pipe_ret = NULL;
/* TODO: Send a SAMLOGON request to determine whether this is a valid
logonserver. We can avoid a 30-second timeout if the DC is down
* ACCESS_DENIED errors if 2 auths are done from the same machine. JRA.
*/
- if (!grab_server_mutex(dc_name))
+ mutex = grab_named_mutex(NULL, dc_name, 10);
+ if (mutex == NULL) {
return NT_STATUS_NO_LOGON_SERVERS;
+ }
/* Attempt connection */
*retry = True;
- result = cli_full_connection(cli, global_myname(), dc_name, &dc_ip, 0,
+ result = cli_full_connection(cli, global_myname(), dc_name, dc_ss, 0,
"IPC$", "IPC", "", "", "", 0, Undefined, retry);
if (!NT_STATUS_IS_OK(result)) {
result = NT_STATUS_NO_LOGON_SERVERS;
}
- release_server_mutex();
+ if (*cli) {
+ cli_shutdown(*cli);
+ *cli = NULL;
+ }
+
+ TALLOC_FREE(mutex);
return result;
}
* into account also. This patch from "Bjart Kvarme" <bjart.kvarme@usit.uio.no>.
*/
- if(cli_nt_session_open(*cli, PI_NETLOGON) == False) {
+ /* open the netlogon pipe. */
+ if (lp_client_schannel()) {
+ /* We also setup the creds chain in the open_schannel call. */
+ result = cli_rpc_pipe_open_schannel(
+ *cli, &ndr_table_netlogon.syntax_id,
+ PIPE_AUTH_LEVEL_PRIVACY, domain, &netlogon_pipe);
+ } else {
+ result = cli_rpc_pipe_open_noauth(
+ *cli, &ndr_table_netlogon.syntax_id, &netlogon_pipe);
+ }
+
+ if (!NT_STATUS_IS_OK(result)) {
DEBUG(0,("connect_to_domain_password_server: unable to open the domain client session to \
-machine %s. Error was : %s.\n", dc_name, cli_errstr(*cli)));
- cli_nt_session_close(*cli);
- cli_ulogoff(*cli);
+machine %s. Error was : %s.\n", dc_name, nt_errstr(result)));
cli_shutdown(*cli);
- release_server_mutex();
- return NT_STATUS_NO_LOGON_SERVERS;
+ *cli = NULL;
+ TALLOC_FREE(mutex);
+ return result;
}
- fstr_sprintf((*cli)->mach_acct, "%s$", setup_creds_as);
+ if (!lp_client_schannel()) {
+ /* We need to set up a creds chain on an unauthenticated netlogon pipe. */
+ uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
+ uint32 sec_chan_type = 0;
+ unsigned char machine_pwd[16];
+ const char *account_name;
+
+ if (!get_trust_pw_hash(domain, machine_pwd, &account_name,
+ &sec_chan_type))
+ {
+ DEBUG(0, ("connect_to_domain_password_server: could not fetch "
+ "trust account password for domain '%s'\n",
+ domain));
+ cli_shutdown(*cli);
+ *cli = NULL;
+ TALLOC_FREE(mutex);
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
- if (!(*cli)->mach_acct) {
- release_server_mutex();
- return NT_STATUS_NO_MEMORY;
+ result = rpccli_netlogon_setup_creds(netlogon_pipe,
+ dc_name, /* server name */
+ domain, /* domain */
+ global_myname(), /* client name */
+ account_name, /* machine account name */
+ machine_pwd,
+ sec_chan_type,
+ &neg_flags);
+
+ if (!NT_STATUS_IS_OK(result)) {
+ cli_shutdown(*cli);
+ *cli = NULL;
+ TALLOC_FREE(mutex);
+ return result;
+ }
}
- /* This must be the remote domain (not ours) for schannel */
-
- fstrcpy( (*cli)->domain, domain );
-
- result = cli_nt_establish_netlogon(*cli, sec_chan, trust_passwd);
-
- if (!NT_STATUS_IS_OK(result)) {
- DEBUG(0,("connect_to_domain_password_server: unable to setup the NETLOGON credentials to machine \
-%s. Error was : %s.\n", dc_name, nt_errstr(result)));
- cli_nt_session_close(*cli);
- cli_ulogoff(*cli);
+ if(!netlogon_pipe) {
+ DEBUG(0,("connect_to_domain_password_server: unable to open the domain client session to \
+machine %s. Error was : %s.\n", dc_name, cli_errstr(*cli)));
cli_shutdown(*cli);
- release_server_mutex();
- return result;
+ *cli = NULL;
+ TALLOC_FREE(mutex);
+ return NT_STATUS_NO_LOGON_SERVERS;
}
/* We exit here with the mutex *locked*. JRA */
+ *pipe_ret = netlogon_pipe;
+
return NT_STATUS_OK;
}
************************************************************************/
static NTSTATUS domain_client_validate(TALLOC_CTX *mem_ctx,
- const auth_usersupplied_info *user_info,
- const char *domain,
- uchar chal[8],
- auth_serversupplied_info **server_info,
- const char *dc_name, struct in_addr dc_ip,
- const char *setup_creds_as,
- uint16 sec_chan,
- unsigned char trust_passwd[16],
- time_t last_change_time)
+ const auth_usersupplied_info *user_info,
+ const char *domain,
+ uchar chal[8],
+ auth_serversupplied_info **server_info,
+ const char *dc_name,
+ struct sockaddr_storage *dc_ss)
+
{
- NET_USER_INFO_3 info3;
+ struct netr_SamInfo3 *info3 = NULL;
struct cli_state *cli = NULL;
+ struct rpc_pipe_client *netlogon_pipe = NULL;
NTSTATUS nt_status = NT_STATUS_NO_LOGON_SERVERS;
int i;
- BOOL retry = True;
+ bool retry = True;
/*
* At this point, smb_apasswd points to the lanman response to
/* rety loop for robustness */
for (i = 0; !NT_STATUS_IS_OK(nt_status) && retry && (i < 3); i++) {
- nt_status = connect_to_domain_password_server(&cli, domain, dc_name,
- dc_ip, setup_creds_as, sec_chan, trust_passwd, &retry);
+ nt_status = connect_to_domain_password_server(&cli,
+ domain,
+ dc_name,
+ dc_ss,
+ &netlogon_pipe,
+ &retry);
}
if ( !NT_STATUS_IS_OK(nt_status) ) {
return nt_status;
}
- ZERO_STRUCT(info3);
+ /* store a successful connection */
+
+ saf_store( domain, cli->desthost );
/*
* If this call succeeds, we now have lots of info about the user
* in the info3 structure.
*/
- nt_status = cli_netlogon_sam_network_logon(cli, mem_ctx,
- NULL, user_info->smb_name.str, user_info->domain.str,
- user_info->wksta_name.str, chal, user_info->lm_resp,
- user_info->nt_resp, &info3);
-
- /* let go as soon as possible so we avoid any potential deadlocks
- with winbind lookup up users or groups */
+ nt_status = rpccli_netlogon_sam_network_logon(netlogon_pipe,
+ mem_ctx,
+ user_info->logon_parameters,/* flags such as 'allow workstation logon' */
+ dc_name, /* server name */
+ user_info->smb_name, /* user name logging on. */
+ user_info->client_domain, /* domain name */
+ user_info->wksta_name, /* workstation name */
+ chal, /* 8 byte challenge. */
+ user_info->lm_resp, /* lanman 24 byte response */
+ user_info->nt_resp, /* nt 24 byte response */
+ &info3); /* info3 out */
+
+ /* Let go as soon as possible so we avoid any potential deadlocks
+ with winbind lookup up users or groups. */
- release_server_mutex();
+ TALLOC_FREE(mutex);
if (!NT_STATUS_IS_OK(nt_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,
+ "Error was %s.\n", user_info->smb_name,
+ user_info->client_domain, dc_name,
nt_errstr(nt_status)));
/* map to something more useful */
nt_status = NT_STATUS_NO_LOGON_SERVERS;
}
} else {
- nt_status = make_server_info_info3(mem_ctx, user_info->internal_username.str,
- user_info->smb_name.str, domain, server_info, &info3);
- netsamlogon_cache_store( mem_ctx, &info3 );
- }
-
-#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, dc_name, cli_errstr(&cli)));
- nt_status = NT_STATUS_LOGON_FAILURE;
+ nt_status = make_server_info_info3(mem_ctx,
+ user_info->smb_name,
+ domain,
+ server_info,
+ info3);
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+ (*server_info)->nss_token |= user_info->was_mapped;
+
+ if ( ! (*server_info)->guest) {
+ /* if a real user check pam account restrictions */
+ /* only really perfomed if "obey pam restriction" is true */
+ nt_status = smb_pam_accountcheck((*server_info)->unix_name);
+ if ( !NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(1, ("PAM account restriction prevents user login\n"));
+ cli_shutdown(cli);
+ TALLOC_FREE(info3);
+ return nt_status;
+ }
+ }
}
+
+ netsamlogon_cache_store(user_info->smb_name, info3);
+ TALLOC_FREE(info3);
}
-#endif /* 0 */
/* 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 nt_status;
}
auth_serversupplied_info **server_info)
{
NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
- unsigned char trust_passwd[16];
- time_t last_change_time;
const char *domain = lp_workgroup();
- uint32 sec_channel_type = 0;
fstring dc_name;
- struct in_addr dc_ip;
+ struct sockaddr_storage dc_ss;
if ( lp_server_role() != ROLE_DOMAIN_MEMBER ) {
DEBUG(0,("check_ntdomain_security: Configuration error! Cannot use "
* password file.
*/
- if(strequal(get_global_sam_name(), user_info->domain.str)) {
+ if(strequal(get_global_sam_name(), user_info->domain)) {
DEBUG(3,("check_ntdomain_security: Requested domain was for this machine.\n"));
return NT_STATUS_NOT_IMPLEMENTED;
}
- /*
- * Get the machine account password for our primary domain
- * No need to become_root() as secrets_init() is done at startup.
- */
-
- if (!secrets_fetch_trust_account_password(domain, trust_passwd, &last_change_time, &sec_channel_type))
- {
- DEBUG(0, ("check_ntdomain_security: could not fetch trust account password for domain '%s'\n", domain));
- return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
- }
-
- /* Test if machine password has expired and needs to be changed */
- if (lp_machine_password_timeout()) {
- if (last_change_time > 0 &&
- time(NULL) > (last_change_time +
- lp_machine_password_timeout())) {
- global_machine_password_needs_changing = True;
- }
- }
-
/* we need our DC to send the net_sam_logon() request to */
- if ( !get_dc_name(domain, NULL, dc_name, &dc_ip) ) {
+ if ( !get_dc_name(domain, NULL, dc_name, &dc_ss) ) {
DEBUG(5,("check_ntdomain_security: unable to locate a DC for domain %s\n",
- user_info->domain.str));
+ user_info->domain));
return NT_STATUS_NO_LOGON_SERVERS;
}
- nt_status = domain_client_validate(mem_ctx, user_info, domain,
- (uchar *)auth_context->challenge.data, server_info, dc_name, dc_ip,
- global_myname(), sec_channel_type,trust_passwd, last_change_time);
+ nt_status = domain_client_validate(mem_ctx,
+ user_info,
+ domain,
+ (uchar *)auth_context->challenge.data,
+ server_info,
+ dc_name,
+ &dc_ss);
return nt_status;
}
time_t last_change_time;
DOM_SID sid;
fstring dc_name;
- struct in_addr dc_ip;
+ struct sockaddr_storage dc_ss;
if (!user_info || !server_info || !auth_context) {
DEBUG(1,("check_trustdomain_security: Critical variables not present. Failing.\n"));
* Check that the requested domain is not our own machine name or domain name.
*/
- if( strequal(get_global_sam_name(), user_info->domain.str)) {
+ if( strequal(get_global_sam_name(), user_info->domain)) {
DEBUG(3,("check_trustdomain_security: Requested domain [%s] was for this machine.\n",
- user_info->domain.str));
+ user_info->domain));
return NT_STATUS_NOT_IMPLEMENTED;
}
/* No point is bothering if this is not a trusted domain.
This return makes "map to guest = bad user" work again.
The logic is that if we know nothing about the domain, that
- user is known to us and does not exist */
+ user is not known to us and does not exist */
- if ( !is_trusted_domain( user_info->domain.str ) )
+ if ( !is_trusted_domain( user_info->domain ) )
return NT_STATUS_NOT_IMPLEMENTED;
/*
* No need to become_root() as secrets_init() is done at startup.
*/
- if (!secrets_fetch_trusted_domain_password(user_info->domain.str, &trust_password, &sid, &last_change_time))
- {
- DEBUG(0, ("check_trustdomain_security: could not fetch trust account password for domain %s\n", user_info->domain.str));
+ if (!pdb_get_trusteddom_pw(user_info->domain, &trust_password,
+ &sid, &last_change_time)) {
+ DEBUG(0, ("check_trustdomain_security: could not fetch trust "
+ "account password for domain %s\n",
+ user_info->domain));
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
}
#ifdef DEBUG_PASSWORD
- DEBUG(100, ("Trust password for domain %s is %s\n", user_info->domain.str, trust_password));
+ DEBUG(100, ("Trust password for domain %s is %s\n", user_info->domain,
+ trust_password));
#endif
E_md4hash(trust_password, trust_md4_password);
SAFE_FREE(trust_password);
#if 0
/* Test if machine password is expired and need to be changed */
- if (time(NULL) > last_change_time + lp_machine_password_timeout())
+ if (time(NULL) > last_change_time + (time_t)lp_machine_password_timeout())
{
global_machine_password_needs_changing = True;
}
/* use get_dc_name() for consistency even through we know that it will be
a netbios name */
- if ( !get_dc_name(user_info->domain.str, NULL, dc_name, &dc_ip) ) {
+ if ( !get_dc_name(user_info->domain, NULL, dc_name, &dc_ss) ) {
DEBUG(5,("check_trustdomain_security: unable to locate a DC for domain %s\n",
- user_info->domain.str));
+ user_info->domain));
return NT_STATUS_NO_LOGON_SERVERS;
}
- nt_status = domain_client_validate(mem_ctx, user_info, user_info->domain.str,
- (uchar *)auth_context->challenge.data, server_info, dc_name, dc_ip,
- lp_workgroup(), SEC_CHAN_DOMAIN, trust_md4_password, last_change_time);
+ nt_status = domain_client_validate(mem_ctx,
+ user_info,
+ user_info->domain,
+ (uchar *)auth_context->challenge.data,
+ server_info,
+ dc_name,
+ &dc_ss);
return nt_status;
}
git.samba.org / ira / wip.git / blobdiff