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/*
* Unix SMB/CIFS implementation.
* RPC Pipe client / server routines
* Copyright (C) Andrew Tridgell 1992-1997,
* Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
* Copyright (C) Paul Ashton 1997.
* Copyright (C) Jeremy Allison 1998-2001.
* Copyright (C) Andrew Bartlett 2001.
* Copyright (C) Guenther Deschner 2008.
*
* 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/>.
*/
/* This is the implementation of the netlogon pipe. */
#include "includes.h"
extern userdom_struct current_user_info;
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
/*************************************************************************
init_net_r_req_chal:
*************************************************************************/
static void init_net_r_req_chal(struct netr_Credential *r,
struct netr_Credential *srv_chal)
{
DEBUG(6,("init_net_r_req_chal: %d\n", __LINE__));
memcpy(r->data, srv_chal->data, sizeof(r->data));
}
/*******************************************************************
Inits a netr_NETLOGON_INFO_1 structure.
********************************************************************/
static void init_netlogon_info1(struct netr_NETLOGON_INFO_1 *r,
uint32_t flags,
uint32_t pdc_connection_status)
{
r->flags = flags;
r->pdc_connection_status = pdc_connection_status;
}
/*******************************************************************
Inits a netr_NETLOGON_INFO_2 structure.
********************************************************************/
static void init_netlogon_info2(struct netr_NETLOGON_INFO_2 *r,
uint32_t flags,
uint32_t pdc_connection_status,
const char *trusted_dc_name,
uint32_t tc_connection_status)
{
r->flags = flags;
r->pdc_connection_status = pdc_connection_status;
r->trusted_dc_name = trusted_dc_name;
r->tc_connection_status = tc_connection_status;
}
/*******************************************************************
Inits a netr_NETLOGON_INFO_3 structure.
********************************************************************/
static void init_netlogon_info3(struct netr_NETLOGON_INFO_3 *r,
uint32_t flags,
uint32_t logon_attempts)
{
r->flags = flags;
r->logon_attempts = logon_attempts;
}
/*************************************************************************
_netr_LogonControl
*************************************************************************/
WERROR _netr_LogonControl(pipes_struct *p,
struct netr_LogonControl *r)
{
struct netr_NETLOGON_INFO_1 *info1;
uint32_t flags = 0x0;
uint32_t pdc_connection_status = W_ERROR_V(WERR_OK);
/* Setup the Logon Control response */
switch (r->in.level) {
case 1:
info1 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_1);
if (!info1) {
return WERR_NOMEM;
}
init_netlogon_info1(info1,
flags,
pdc_connection_status);
r->out.info->info1 = info1;
break;
default:
return WERR_UNKNOWN_LEVEL;
}
return WERR_OK;
}
/****************************************************************************
Send a message to smbd to do a sam synchronisation
**************************************************************************/
static void send_sync_message(void)
{
DEBUG(3, ("sending sam synchronisation message\n"));
message_send_all(smbd_messaging_context(), MSG_SMB_SAM_SYNC, NULL, 0,
NULL);
}
/*************************************************************************
_netr_LogonControl2
*************************************************************************/
WERROR _netr_LogonControl2(pipes_struct *p,
struct netr_LogonControl2 *r)
{
uint32 flags = 0x0;
uint32 pdc_connection_status = 0x0;
uint32 logon_attempts = 0x0;
uint32 tc_status;
fstring dc_name2;
const char *dc_name = NULL;
struct sockaddr_storage dc_ss;
const char *domain = NULL;
struct netr_NETLOGON_INFO_1 *info1;
struct netr_NETLOGON_INFO_2 *info2;
struct netr_NETLOGON_INFO_3 *info3;
tc_status = W_ERROR_V(WERR_NO_SUCH_DOMAIN);
switch (r->in.function_code) {
case NETLOGON_CONTROL_TC_QUERY:
domain = r->in.data->domain;
if ( !is_trusted_domain( domain ) )
break;
if ( !get_dc_name( domain, NULL, dc_name2, &dc_ss ) ) {
tc_status = W_ERROR_V(WERR_NO_LOGON_SERVERS);
break;
}
dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2);
if (!dc_name) {
return WERR_NOMEM;
}
tc_status = W_ERROR_V(WERR_OK);
break;
case NETLOGON_CONTROL_REDISCOVER:
domain = r->in.data->domain;
if ( !is_trusted_domain( domain ) )
break;
if ( !get_dc_name( domain, NULL, dc_name2, &dc_ss ) ) {
tc_status = W_ERROR_V(WERR_NO_LOGON_SERVERS);
break;
}
dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2);
if (!dc_name) {
return WERR_NOMEM;
}
tc_status = W_ERROR_V(WERR_OK);
break;
default:
/* no idea what this should be */
DEBUG(0,("_netr_LogonControl2: unimplemented function level [%d]\n",
r->in.function_code));
return WERR_UNKNOWN_LEVEL;
}
/* prepare the response */
switch (r->in.level) {
case 1:
info1 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_1);
W_ERROR_HAVE_NO_MEMORY(info1);
init_netlogon_info1(info1,
flags,
pdc_connection_status);
r->out.query->info1 = info1;
break;
case 2:
info2 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_2);
W_ERROR_HAVE_NO_MEMORY(info2);
init_netlogon_info2(info2,
flags,
pdc_connection_status,
dc_name,
tc_status);
r->out.query->info2 = info2;
break;
case 3:
info3 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_3);
W_ERROR_HAVE_NO_MEMORY(info3);
init_netlogon_info3(info3,
flags,
logon_attempts);
r->out.query->info3 = info3;
break;
default:
return WERR_UNKNOWN_LEVEL;
}
if (lp_server_role() == ROLE_DOMAIN_BDC) {
send_sync_message();
}
return WERR_OK;
}
/*************************************************************************
_netr_NetrEnumerateTrustedDomains
*************************************************************************/
WERROR _netr_NetrEnumerateTrustedDomains(pipes_struct *p,
struct netr_NetrEnumerateTrustedDomains *r)
{
struct netr_Blob trusted_domains_blob;
DATA_BLOB blob;
DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
/* set up the Trusted Domain List response */
blob = data_blob_talloc_zero(p->mem_ctx, 2);
trusted_domains_blob.data = blob.data;
trusted_domains_blob.length = blob.length;
DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__));
*r->out.trusted_domains_blob = trusted_domains_blob;
return WERR_OK;
}
/******************************************************************
gets a machine password entry. checks access rights of the host.
******************************************************************/
static NTSTATUS get_md4pw(char *md4pw, const char *mach_acct, uint16 sec_chan_type)
{
struct samu *sampass = NULL;
const uint8 *pass;
bool ret;
uint32 acct_ctrl;
#if 0
char addr[INET6_ADDRSTRLEN];
/*
* Currently this code is redundent as we already have a filter
* by hostname list. What this code really needs to do is to
* get a hosts allowed/hosts denied list from the SAM database
* on a per user basis, and make the access decision there.
* I will leave this code here for now as a reminder to implement
* this at a later date. JRA.
*/
if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
client_name(get_client_fd()),
client_addr(get_client_fd(),addr,sizeof(addr)))) {
DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
return False;
}
#endif /* 0 */
if ( !(sampass = samu_new( NULL )) ) {
return NT_STATUS_NO_MEMORY;
}
/* JRA. This is ok as it is only used for generating the challenge. */
become_root();
ret = pdb_getsampwnam(sampass, mach_acct);
unbecome_root();
if (!ret) {
DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
TALLOC_FREE(sampass);
return NT_STATUS_ACCESS_DENIED;
}
acct_ctrl = pdb_get_acct_ctrl(sampass);
if (acct_ctrl & ACB_DISABLED) {
DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct));
TALLOC_FREE(sampass);
return NT_STATUS_ACCOUNT_DISABLED;
}
if (!(acct_ctrl & ACB_SVRTRUST) &&
!(acct_ctrl & ACB_WSTRUST) &&
!(acct_ctrl & ACB_DOMTRUST))
{
DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct));
TALLOC_FREE(sampass);
return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
}
switch (sec_chan_type) {
case SEC_CHAN_BDC:
if (!(acct_ctrl & ACB_SVRTRUST)) {
DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested "
"but not a server trust account\n", mach_acct));
TALLOC_FREE(sampass);
return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
}
break;
case SEC_CHAN_WKSTA:
if (!(acct_ctrl & ACB_WSTRUST)) {
DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested "
"but not a workstation trust account\n", mach_acct));
TALLOC_FREE(sampass);
return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
}
break;
case SEC_CHAN_DOMAIN:
if (!(acct_ctrl & ACB_DOMTRUST)) {
DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested "
"but not a interdomain trust account\n", mach_acct));
TALLOC_FREE(sampass);
return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
}
break;
default:
break;
}
if ((pass = pdb_get_nt_passwd(sampass)) == NULL) {
DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct));
TALLOC_FREE(sampass);
return NT_STATUS_LOGON_FAILURE;
}
memcpy(md4pw, pass, 16);
dump_data(5, (uint8 *)md4pw, 16);
TALLOC_FREE(sampass);
return NT_STATUS_OK;
}
/*************************************************************************
_netr_ServerReqChallenge
*************************************************************************/
NTSTATUS _netr_ServerReqChallenge(pipes_struct *p,
struct netr_ServerReqChallenge *r)
{
if (!p->dc) {
p->dc = TALLOC_ZERO_P(p->pipe_state_mem_ctx, struct dcinfo);
if (!p->dc) {
return NT_STATUS_NO_MEMORY;
}
} else {
DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n"));
ZERO_STRUCTP(p->dc);
}
fstrcpy(p->dc->remote_machine, r->in.computer_name);
/* Save the client challenge to the server. */
memcpy(p->dc->clnt_chal.data, r->in.credentials->data,
sizeof(r->in.credentials->data));
/* Create a server challenge for the client */
/* Set this to a random value. */
generate_random_buffer(p->dc->srv_chal.data, 8);
/* set up the LSA REQUEST CHALLENGE response */
init_net_r_req_chal(r->out.return_credentials, &p->dc->srv_chal);
p->dc->challenge_sent = True;
return NT_STATUS_OK;
}
/*************************************************************************
_netr_ServerAuthenticate
Create the initial credentials.
*************************************************************************/
NTSTATUS _netr_ServerAuthenticate(pipes_struct *p,
struct netr_ServerAuthenticate *r)
{
NTSTATUS status;
struct netr_Credential srv_chal_out;
if (!p->dc || !p->dc->challenge_sent) {
return NT_STATUS_ACCESS_DENIED;
}
status = get_md4pw((char *)p->dc->mach_pw,
r->in.account_name,
r->in.secure_channel_type);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("_netr_ServerAuthenticate: get_md4pw failed. Failed to "
"get password for machine account %s "
"from client %s: %s\n",
r->in.account_name,
r->in.computer_name,
nt_errstr(status) ));
/* always return NT_STATUS_ACCESS_DENIED */
return NT_STATUS_ACCESS_DENIED;
}
/* From the client / server challenges and md4 password, generate sess key */
creds_server_init(0, /* No neg flags. */
p->dc,
&p->dc->clnt_chal, /* Stored client chal. */
&p->dc->srv_chal, /* Stored server chal. */
p->dc->mach_pw,
&srv_chal_out);
/* Check client credentials are valid. */
if (!netlogon_creds_server_check(p->dc, r->in.credentials)) {
DEBUG(0,("_netr_ServerAuthenticate: netlogon_creds_server_check failed. Rejecting auth "
"request from client %s machine account %s\n",
r->in.computer_name,
r->in.account_name));
return NT_STATUS_ACCESS_DENIED;
}
fstrcpy(p->dc->mach_acct, r->in.account_name);
fstrcpy(p->dc->remote_machine, r->in.computer_name);
p->dc->authenticated = True;
/* set up the LSA AUTH response */
/* Return the server credentials. */
memcpy(r->out.return_credentials->data, &srv_chal_out.data,
sizeof(r->out.return_credentials->data));
return NT_STATUS_OK;
}
/*************************************************************************
_netr_ServerAuthenticate2
*************************************************************************/
NTSTATUS _netr_ServerAuthenticate2(pipes_struct *p,
struct netr_ServerAuthenticate2 *r)
{
NTSTATUS status;
uint32_t srv_flgs;
struct netr_Credential srv_chal_out;
/* We use this as the key to store the creds: */
/* r->in.computer_name */
if (!p->dc || !p->dc->challenge_sent) {
DEBUG(0,("_netr_ServerAuthenticate2: no challenge sent to client %s\n",
r->in.computer_name));
return NT_STATUS_ACCESS_DENIED;
}
if ( (lp_server_schannel() == true) &&
((*r->in.negotiate_flags & NETLOGON_NEG_SCHANNEL) == 0) ) {
/* schannel must be used, but client did not offer it. */
DEBUG(0,("_netr_ServerAuthenticate2: schannel required but client failed "
"to offer it. Client was %s\n",
r->in.account_name));
return NT_STATUS_ACCESS_DENIED;
}
status = get_md4pw((char *)p->dc->mach_pw,
r->in.account_name,
r->in.secure_channel_type);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("_netr_ServerAuthenticate2: failed to get machine password for "
"account %s: %s\n",
r->in.account_name, nt_errstr(status) ));
/* always return NT_STATUS_ACCESS_DENIED */
return NT_STATUS_ACCESS_DENIED;
}
/* From the client / server challenges and md4 password, generate sess key */
creds_server_init(*r->in.negotiate_flags,
p->dc,
&p->dc->clnt_chal, /* Stored client chal. */
&p->dc->srv_chal, /* Stored server chal. */
p->dc->mach_pw,
&srv_chal_out);
/* Check client credentials are valid. */
if (!netlogon_creds_server_check(p->dc, r->in.credentials)) {
DEBUG(0,("_netr_ServerAuthenticate2: netlogon_creds_server_check failed. Rejecting auth "
"request from client %s machine account %s\n",
r->in.computer_name,
r->in.account_name));
return NT_STATUS_ACCESS_DENIED;
}
srv_flgs = 0x000001ff;
if (lp_server_schannel() != false) {
srv_flgs |= NETLOGON_NEG_SCHANNEL;
}
/* set up the LSA AUTH 2 response */
memcpy(r->out.return_credentials->data, &srv_chal_out.data,
sizeof(r->out.return_credentials->data));
*r->out.negotiate_flags = srv_flgs;
fstrcpy(p->dc->mach_acct, r->in.account_name);
fstrcpy(p->dc->remote_machine, r->in.computer_name);
fstrcpy(p->dc->domain, lp_workgroup() );
p->dc->authenticated = True;
/* Store off the state so we can continue after client disconnect. */
become_root();
secrets_store_schannel_session_info(p->mem_ctx,
r->in.computer_name,
p->dc);
unbecome_root();
return NT_STATUS_OK;
}
/*************************************************************************
_netr_ServerPasswordSet
*************************************************************************/
NTSTATUS _netr_ServerPasswordSet(pipes_struct *p,
struct netr_ServerPasswordSet *r)
{
NTSTATUS status = NT_STATUS_OK;
fstring remote_machine;
struct samu *sampass=NULL;
bool ret = False;
unsigned char pwd[16];
int i;
uint32 acct_ctrl;
struct netr_Authenticator cred_out;
const uchar *old_pw;
DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__));
/* We need the remote machine name for the creds lookup. */
fstrcpy(remote_machine, r->in.computer_name);
if ( (lp_server_schannel() == True) && (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) ) {
/* 'server schannel = yes' should enforce use of
schannel, the client did offer it in auth2, but
obviously did not use it. */
DEBUG(0,("_netr_ServerPasswordSet: client %s not using schannel for netlogon\n",
remote_machine ));
return NT_STATUS_ACCESS_DENIED;
}
if (!p->dc) {
/* Restore the saved state of the netlogon creds. */
become_root();
ret = secrets_restore_schannel_session_info(p->pipe_state_mem_ctx,
remote_machine,
&p->dc);
unbecome_root();
if (!ret) {
return NT_STATUS_INVALID_HANDLE;
}
}
if (!p->dc || !p->dc->authenticated) {
return NT_STATUS_INVALID_HANDLE;
}
DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
remote_machine, p->dc->mach_acct));
/* Step the creds chain forward. */
if (!netlogon_creds_server_step(p->dc, r->in.credential, &cred_out)) {
DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth "
"request from client %s machine account %s\n",
remote_machine, p->dc->mach_acct ));
return NT_STATUS_INVALID_PARAMETER;
}
/* We must store the creds state after an update. */
sampass = samu_new( NULL );
if (!sampass) {
return NT_STATUS_NO_MEMORY;
}
become_root();
secrets_store_schannel_session_info(p->pipe_state_mem_ctx,
remote_machine,
p->dc);
ret = pdb_getsampwnam(sampass, p->dc->mach_acct);
unbecome_root();
if (!ret) {
TALLOC_FREE(sampass);
return NT_STATUS_ACCESS_DENIED;
}
/* Ensure the account exists and is a machine account. */
acct_ctrl = pdb_get_acct_ctrl(sampass);
if (!(acct_ctrl & ACB_WSTRUST ||
acct_ctrl & ACB_SVRTRUST ||
acct_ctrl & ACB_DOMTRUST)) {
TALLOC_FREE(sampass);
return NT_STATUS_NO_SUCH_USER;
}
if (pdb_get_acct_ctrl(sampass) & ACB_DISABLED) {
TALLOC_FREE(sampass);
return NT_STATUS_ACCOUNT_DISABLED;
}
/* Woah - what does this to to the credential chain ? JRA */
cred_hash3(pwd, r->in.new_password->hash, p->dc->sess_key, 0);
DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n"));
for(i = 0; i < sizeof(pwd); i++)
DEBUG(100,("%02X ", pwd[i]));
DEBUG(100,("\n"));
old_pw = pdb_get_nt_passwd(sampass);
if (old_pw && memcmp(pwd, old_pw, 16) == 0) {
/* Avoid backend modificiations and other fun if the
client changed the password to the *same thing* */
ret = True;
} else {
/* LM password should be NULL for machines */
if (!pdb_set_lanman_passwd(sampass, NULL, PDB_CHANGED)) {
TALLOC_FREE(sampass);
return NT_STATUS_NO_MEMORY;
}
if (!pdb_set_nt_passwd(sampass, pwd, PDB_CHANGED)) {
TALLOC_FREE(sampass);
return NT_STATUS_NO_MEMORY;
}
if (!pdb_set_pass_last_set_time(sampass, time(NULL), PDB_CHANGED)) {
TALLOC_FREE(sampass);
/* Not quite sure what this one qualifies as, but this will do */
return NT_STATUS_UNSUCCESSFUL;
}
become_root();
status = pdb_update_sam_account(sampass);
unbecome_root();
}
/* set up the LSA Server Password Set response */
memcpy(r->out.return_authenticator, &cred_out,
sizeof(r->out.return_authenticator));
TALLOC_FREE(sampass);
return status;
}
/*************************************************************************
_netr_LogonSamLogoff
*************************************************************************/
NTSTATUS _netr_LogonSamLogoff(pipes_struct *p,
struct netr_LogonSamLogoff *r)
{
if ( (lp_server_schannel() == True) && (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) ) {
/* 'server schannel = yes' should enforce use of
schannel, the client did offer it in auth2, but
obviously did not use it. */
DEBUG(0,("_netr_LogonSamLogoff: client %s not using schannel for netlogon\n",
get_remote_machine_name() ));
return NT_STATUS_ACCESS_DENIED;
}
if (!get_valid_user_struct(p->vuid))
return NT_STATUS_NO_SUCH_USER;
/* Using the remote machine name for the creds store: */
/* r->in.computer_name */
if (!p->dc) {
/* Restore the saved state of the netlogon creds. */
bool ret;
become_root();
ret = secrets_restore_schannel_session_info(p->pipe_state_mem_ctx,
r->in.computer_name,
&p->dc);
unbecome_root();
if (!ret) {
return NT_STATUS_INVALID_HANDLE;
}
}
if (!p->dc || !p->dc->authenticated) {
return NT_STATUS_INVALID_HANDLE;
}
/* checks and updates credentials. creates reply credentials */
if (!netlogon_creds_server_step(p->dc, r->in.credential, r->out.return_authenticator)) {
DEBUG(2,("_netr_LogonSamLogoff: netlogon_creds_server_step failed. Rejecting auth "
"request from client %s machine account %s\n",
r->in.computer_name, p->dc->mach_acct ));
return NT_STATUS_INVALID_PARAMETER;
}
/* We must store the creds state after an update. */
become_root();
secrets_store_schannel_session_info(p->pipe_state_mem_ctx,
r->in.computer_name,
p->dc);
unbecome_root();
return NT_STATUS_OK;
}
/*******************************************************************
gets a domain user's groups from their already-calculated NT_USER_TOKEN
********************************************************************/
static NTSTATUS nt_token_to_group_list(TALLOC_CTX *mem_ctx,
const DOM_SID *domain_sid,
size_t num_sids,
const DOM_SID *sids,
int *numgroups, DOM_GID **pgids)
{
int i;
*numgroups=0;
*pgids = NULL;
for (i=0; i<num_sids; i++) {
DOM_GID gid;
if (!sid_peek_check_rid(domain_sid, &sids[i], &gid.g_rid)) {
continue;
}
gid.attr = (SE_GROUP_MANDATORY|SE_GROUP_ENABLED_BY_DEFAULT|
SE_GROUP_ENABLED);
ADD_TO_ARRAY(mem_ctx, DOM_GID, gid, pgids, numgroups);
if (*pgids == NULL) {
return NT_STATUS_NO_MEMORY;
}
}
return NT_STATUS_OK;
}
/*************************************************************************
_netr_LogonSamLogon
*************************************************************************/
NTSTATUS _netr_LogonSamLogon(pipes_struct *p,
struct netr_LogonSamLogon *r)
{
NTSTATUS status = NT_STATUS_OK;
struct netr_SamInfo3 *sam3 = NULL;
union netr_LogonInfo *logon = r->in.logon;
fstring nt_username, nt_domain, nt_workstation;
auth_usersupplied_info *user_info = NULL;
auth_serversupplied_info *server_info = NULL;
struct samu *sampw;
struct auth_context *auth_context = NULL;
bool process_creds = true;
switch (p->hdr_req.opnum) {
case NDR_NETR_LOGONSAMLOGON:
process_creds = true;
break;
case NDR_NETR_LOGONSAMLOGONEX:
default:
process_creds = false;
}
if ( (lp_server_schannel() == True) && (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) ) {
/* 'server schannel = yes' should enforce use of
schannel, the client did offer it in auth2, but
obviously did not use it. */
DEBUG(0,("_netr_LogonSamLogon: client %s not using schannel for netlogon\n",
get_remote_machine_name() ));
return NT_STATUS_ACCESS_DENIED;
}
sam3 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo3);
if (!sam3) {
return NT_STATUS_NO_MEMORY;
}
/* store the user information, if there is any. */
r->out.validation->sam3 = sam3;
*r->out.authoritative = true; /* authoritative response */
if (r->in.validation_level != 2 && r->in.validation_level != 3) {
DEBUG(0,("_netr_LogonSamLogon: bad validation_level value %d.\n",
(int)r->in.validation_level));
return NT_STATUS_ACCESS_DENIED;
}
if (!get_valid_user_struct(p->vuid))
return NT_STATUS_NO_SUCH_USER;
if (process_creds) {
fstring remote_machine;
/* Get the remote machine name for the creds store. */
/* Note this is the remote machine this request is coming from (member server),
not neccessarily the workstation name the user is logging onto.
*/
fstrcpy(remote_machine, r->in.computer_name);
if (!p->dc) {
/* Restore the saved state of the netlogon creds. */
bool ret;
become_root();
ret = secrets_restore_schannel_session_info(p->pipe_state_mem_ctx,
remote_machine,
&p->dc);
unbecome_root();
if (!ret) {
return NT_STATUS_INVALID_HANDLE;
}
}
if (!p->dc || !p->dc->authenticated) {
return NT_STATUS_INVALID_HANDLE;
}
/* checks and updates credentials. creates reply credentials */
if (!netlogon_creds_server_step(p->dc, r->in.credential, r->out.return_authenticator)) {
DEBUG(2,("_netr_LogonSamLogon: creds_server_step failed. Rejecting auth "
"request from client %s machine account %s\n",
remote_machine, p->dc->mach_acct ));
return NT_STATUS_INVALID_PARAMETER;
}
/* We must store the creds state after an update. */
become_root();
secrets_store_schannel_session_info(p->pipe_state_mem_ctx,
remote_machine,
p->dc);
unbecome_root();
}
switch (r->in.logon_level) {
case INTERACTIVE_LOGON_TYPE:
fstrcpy(nt_username,
logon->password->identity_info.account_name.string);
fstrcpy(nt_domain,
logon->password->identity_info.domain_name.string);
fstrcpy(nt_workstation,
logon->password->identity_info.workstation.string);
DEBUG(3,("SAM Logon (Interactive). Domain:[%s]. ", lp_workgroup()));
break;
case NET_LOGON_TYPE:
fstrcpy(nt_username,
logon->network->identity_info.account_name.string);
fstrcpy(nt_domain,
logon->network->identity_info.domain_name.string);
fstrcpy(nt_workstation,
logon->network->identity_info.workstation.string);
DEBUG(3,("SAM Logon (Network). Domain:[%s]. ", lp_workgroup()));
break;
default:
DEBUG(2,("SAM Logon: unsupported switch value\n"));
return NT_STATUS_INVALID_INFO_CLASS;
} /* end switch */
DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain));
fstrcpy(current_user_info.smb_name, nt_username);
sub_set_smb_name(nt_username);
DEBUG(5,("Attempting validation level %d for unmapped username %s.\n",
r->in.validation_level, nt_username));
status = NT_STATUS_OK;
switch (r->in.logon_level) {
case NET_LOGON_TYPE:
{
const char *wksname = nt_workstation;
status = make_auth_context_fixed(&auth_context,
logon->network->challenge);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/* For a network logon, the workstation name comes in with two
* backslashes in the front. Strip them if they are there. */
if (*wksname == '\\') wksname++;
if (*wksname == '\\') wksname++;
/* Standard challenge/response authenticaion */
if (!make_user_info_netlogon_network(&user_info,
nt_username, nt_domain,
wksname,
logon->network->identity_info.parameter_control,
logon->network->lm.data,
logon->network->lm.length,
logon->network->nt.data,
logon->network->nt.length)) {
status = NT_STATUS_NO_MEMORY;
}
break;
}
case INTERACTIVE_LOGON_TYPE:
/* 'Interactive' authentication, supplies the password in its
MD4 form, encrypted with the session key. We will convert
this to challenge/response for the auth subsystem to chew
on */
{
const uint8 *chal;
if (!NT_STATUS_IS_OK(status = make_auth_context_subsystem(&auth_context))) {
return status;
}
chal = auth_context->get_ntlm_challenge(auth_context);
if (!make_user_info_netlogon_interactive(&user_info,
nt_username, nt_domain,
nt_workstation,
logon->password->identity_info.parameter_control,
chal,
logon->password->lmpassword.hash,
logon->password->ntpassword.hash,
p->dc->sess_key)) {
status = NT_STATUS_NO_MEMORY;
}
break;
}
default:
DEBUG(2,("SAM Logon: unsupported switch value\n"));
return NT_STATUS_INVALID_INFO_CLASS;
} /* end switch */
if ( NT_STATUS_IS_OK(status) ) {
status = auth_context->check_ntlm_password(auth_context,
user_info, &server_info);
}
(auth_context->free)(&auth_context);
free_user_info(&user_info);
DEBUG(5,("_netr_LogonSamLogon: check_password returned status %s\n",
nt_errstr(status)));
/* Check account and password */
if (!NT_STATUS_IS_OK(status)) {
/* If we don't know what this domain is, we need to
indicate that we are not authoritative. This
allows the client to decide if it needs to try
a local user. Fix by jpjanosi@us.ibm.com, #2976 */
if ( NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)
&& !strequal(nt_domain, get_global_sam_name())
&& !is_trusted_domain(nt_domain) )
*r->out.authoritative = false; /* We are not authoritative */
TALLOC_FREE(server_info);
return status;
}
if (server_info->guest) {
/* We don't like guest domain logons... */
DEBUG(5,("_netr_LogonSamLogon: Attempted domain logon as GUEST "
"denied.\n"));
TALLOC_FREE(server_info);
return NT_STATUS_LOGON_FAILURE;
}
/* This is the point at which, if the login was successful, that
the SAM Local Security Authority should record that the user is
logged in to the domain. */
{
DOM_GID *gids = NULL;
const DOM_SID *user_sid = NULL;
const DOM_SID *group_sid = NULL;
DOM_SID domain_sid;
uint32 user_rid, group_rid;
int num_gids = 0;
const char *my_name;
struct netr_UserSessionKey user_session_key;
struct netr_LMSessionKey lm_session_key;
unsigned char pipe_session_key[16];
NTTIME last_logon, last_logoff, acct_expiry, last_password_change;
NTTIME allow_password_change, force_password_change;
struct samr_RidWithAttributeArray groups;
int i;
struct dom_sid2 *sid = NULL;
ZERO_STRUCT(user_session_key);
ZERO_STRUCT(lm_session_key);
sampw = server_info->sam_account;
user_sid = pdb_get_user_sid(sampw);
group_sid = pdb_get_group_sid(sampw);
if ((user_sid == NULL) || (group_sid == NULL)) {
DEBUG(1, ("_netr_LogonSamLogon: User without group or user SID\n"));
return NT_STATUS_UNSUCCESSFUL;
}
sid_copy(&domain_sid, user_sid);
sid_split_rid(&domain_sid, &user_rid);
sid = sid_dup_talloc(p->mem_ctx, &domain_sid);
if (!sid) {
return NT_STATUS_NO_MEMORY;
}
if (!sid_peek_check_rid(&domain_sid, group_sid, &group_rid)) {
DEBUG(1, ("_netr_LogonSamLogon: user %s\\%s has user sid "
"%s\n but group sid %s.\n"
"The conflicting domain portions are not "
"supported for NETLOGON calls\n",
pdb_get_domain(sampw),
pdb_get_username(sampw),
sid_string_dbg(user_sid),
sid_string_dbg(group_sid)));
return NT_STATUS_UNSUCCESSFUL;
}
if(server_info->login_server) {
my_name = server_info->login_server;
} else {
my_name = global_myname();
}
status = nt_token_to_group_list(p->mem_ctx, &domain_sid,
server_info->num_sids,
server_info->sids,
&num_gids, &gids);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (server_info->user_session_key.length) {
memcpy(user_session_key.key,
server_info->user_session_key.data,
MIN(sizeof(user_session_key.key),
server_info->user_session_key.length));
if (process_creds) {
/* Get the pipe session key from the creds. */
memcpy(pipe_session_key, p->dc->sess_key, 16);
} else {
/* Get the pipe session key from the schannel. */
if (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL || p->auth.a_u.schannel_auth == NULL) {
return NT_STATUS_INVALID_HANDLE;
}
memcpy(pipe_session_key, p->auth.a_u.schannel_auth->sess_key, 16);
}
SamOEMhash(user_session_key.key, pipe_session_key, 16);
memset(pipe_session_key, '\0', 16);
}
if (server_info->lm_session_key.length) {
memcpy(lm_session_key.key,
server_info->lm_session_key.data,
MIN(sizeof(lm_session_key.key),
server_info->lm_session_key.length));
if (process_creds) {
/* Get the pipe session key from the creds. */
memcpy(pipe_session_key, p->dc->sess_key, 16);
} else {
/* Get the pipe session key from the schannel. */
if (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL || p->auth.a_u.schannel_auth == NULL) {
return NT_STATUS_INVALID_HANDLE;
}
memcpy(pipe_session_key, p->auth.a_u.schannel_auth->sess_key, 16);
}
SamOEMhash(lm_session_key.key, pipe_session_key, 8);
memset(pipe_session_key, '\0', 16);
}
groups.count = num_gids;
groups.rids = TALLOC_ARRAY(p->mem_ctx, struct samr_RidWithAttribute,
groups.count);
if (!groups.rids) {
return NT_STATUS_NO_MEMORY;
}
for (i=0; i < groups.count; i++) {
groups.rids[i].rid = gids[i].g_rid;
groups.rids[i].attributes = gids[i].attr;
}
unix_to_nt_time(&last_logon, pdb_get_logon_time(sampw));
unix_to_nt_time(&last_logoff, get_time_t_max());
unix_to_nt_time(&acct_expiry, get_time_t_max());
unix_to_nt_time(&last_password_change, pdb_get_pass_last_set_time(sampw));
unix_to_nt_time(&allow_password_change, pdb_get_pass_can_change_time(sampw));
unix_to_nt_time(&force_password_change, pdb_get_pass_must_change_time(sampw));
init_netr_SamInfo3(sam3,
last_logon,
last_logoff,
acct_expiry,
last_password_change,
allow_password_change,
force_password_change,
talloc_strdup(p->mem_ctx, pdb_get_username(sampw)),
talloc_strdup(p->mem_ctx, pdb_get_fullname(sampw)),
talloc_strdup(p->mem_ctx, pdb_get_logon_script(sampw)),
talloc_strdup(p->mem_ctx, pdb_get_profile_path(sampw)),
talloc_strdup(p->mem_ctx, pdb_get_homedir(sampw)),
talloc_strdup(p->mem_ctx, pdb_get_dir_drive(sampw)),
0, /* logon_count */
0, /* bad_password_count */
user_rid,
group_rid,
groups,
NETLOGON_EXTRA_SIDS,
user_session_key,
my_name,
talloc_strdup(p->mem_ctx, pdb_get_domain(sampw)),
sid,
lm_session_key,
pdb_get_acct_ctrl(sampw),
0, /* sidcount */
NULL); /* struct netr_SidAttr *sids */
ZERO_STRUCT(user_session_key);
ZERO_STRUCT(lm_session_key);
}
TALLOC_FREE(server_info);
return status;
}
/*************************************************************************
_netr_LogonSamLogonEx
- no credential chaining. Map into net sam logon.
*************************************************************************/
NTSTATUS _netr_LogonSamLogonEx(pipes_struct *p,
struct netr_LogonSamLogonEx *r)
{
struct netr_LogonSamLogon q;
/* Only allow this if the pipe is protected. */
if (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) {
DEBUG(0,("_net_sam_logon_ex: client %s not using schannel for netlogon\n",
get_remote_machine_name() ));
return NT_STATUS_INVALID_PARAMETER;
}
q.in.server_name = r->in.server_name;
q.in.computer_name = r->in.computer_name;
q.in.logon_level = r->in.logon_level;
q.in.logon = r->in.logon;
q.in.validation_level = r->in.validation_level;
/* we do not handle the flags */
/* = r->in.flags; */
q.out.validation = r->out.validation;
q.out.authoritative = r->out.authoritative;
/* we do not handle the flags */
/* = r->out.flags; */
return _netr_LogonSamLogon(p, &q);
}
/*************************************************************************
_ds_enum_dom_trusts
*************************************************************************/
#if 0 /* JERRY -- not correct */
NTSTATUS _ds_enum_dom_trusts(pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
DS_R_ENUM_DOM_TRUSTS *r_u)
{
NTSTATUS status = NT_STATUS_OK;
/* TODO: According to MSDN, the can only be executed against a
DC or domain member running Windows 2000 or later. Need
to test against a standalone 2k server and see what it
does. A windows 2000 DC includes its own domain in the
list. --jerry */
return status;
}
#endif /* JERRY */
/****************************************************************
****************************************************************/
WERROR _netr_LogonUasLogon(pipes_struct *p,
struct netr_LogonUasLogon *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_LogonUasLogoff(pipes_struct *p,
struct netr_LogonUasLogoff *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_DatabaseDeltas(pipes_struct *p,
struct netr_DatabaseDeltas *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_DatabaseSync(pipes_struct *p,
struct netr_DatabaseSync *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_AccountDeltas(pipes_struct *p,
struct netr_AccountDeltas *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_AccountSync(pipes_struct *p,
struct netr_AccountSync *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_GetDcName(pipes_struct *p,
struct netr_GetDcName *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_GetAnyDCName(pipes_struct *p,
struct netr_GetAnyDCName *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_DatabaseSync2(pipes_struct *p,
struct netr_DatabaseSync2 *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_DatabaseRedo(pipes_struct *p,
struct netr_DatabaseRedo *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_LogonControl2Ex(pipes_struct *p,
struct netr_LogonControl2Ex *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_DsRGetDCName(pipes_struct *p,
struct netr_DsRGetDCName *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_NETRLOGONDUMMYROUTINE1(pipes_struct *p,
struct netr_NETRLOGONDUMMYROUTINE1 *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_NETRLOGONSETSERVICEBITS(pipes_struct *p,
struct netr_NETRLOGONSETSERVICEBITS *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_LogonGetTrustRid(pipes_struct *p,
struct netr_LogonGetTrustRid *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(pipes_struct *p,
struct netr_NETRLOGONCOMPUTESERVERDIGEST *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(pipes_struct *p,
struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_ServerAuthenticate3(pipes_struct *p,
struct netr_ServerAuthenticate3 *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_DsRGetDCNameEx(pipes_struct *p,
struct netr_DsRGetDCNameEx *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_DsRGetSiteName(pipes_struct *p,
struct netr_DsRGetSiteName *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_LogonGetDomainInfo(pipes_struct *p,
struct netr_LogonGetDomainInfo *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_ServerPasswordSet2(pipes_struct *p,
struct netr_ServerPasswordSet2 *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_ServerPasswordGet(pipes_struct *p,
struct netr_ServerPasswordGet *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_NETRLOGONSENDTOSAM(pipes_struct *p,
struct netr_NETRLOGONSENDTOSAM *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_DsRAddressToSitenamesW(pipes_struct *p,
struct netr_DsRAddressToSitenamesW *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_DsRGetDCNameEx2(pipes_struct *p,
struct netr_DsRGetDCNameEx2 *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(pipes_struct *p,
struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_NetrEnumerateTrustedDomainsEx(pipes_struct *p,
struct netr_NetrEnumerateTrustedDomainsEx *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_DsRAddressToSitenamesExW(pipes_struct *p,
struct netr_DsRAddressToSitenamesExW *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_DsrGetDcSiteCoverageW(pipes_struct *p,
struct netr_DsrGetDcSiteCoverageW *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_DsrEnumerateDomainTrusts(pipes_struct *p,
struct netr_DsrEnumerateDomainTrusts *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_DsrDeregisterDNSHostRecords(pipes_struct *p,
struct netr_DsrDeregisterDNSHostRecords *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_ServerTrustPasswordsGet(pipes_struct *p,
struct netr_ServerTrustPasswordsGet *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_DsRGetForestTrustInformation(pipes_struct *p,
struct netr_DsRGetForestTrustInformation *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_GetForestTrustInformation(pipes_struct *p,
struct netr_GetForestTrustInformation *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
/****************************************************************
****************************************************************/
NTSTATUS _netr_LogonSamLogonWithFlags(pipes_struct *p,
struct netr_LogonSamLogonWithFlags *r)
{
p->rng_fault_state = true;
return NT_STATUS_NOT_IMPLEMENTED;
}
/****************************************************************
****************************************************************/
WERROR _netr_NETRSERVERGETTRUSTINFO(pipes_struct *p,
struct netr_NETRSERVERGETTRUSTINFO *r)
{
p->rng_fault_state = true;
return WERR_NOT_SUPPORTED;
}
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