#include "includes.h"
NTSTATUS cli_net_req_chal(struct cli_state *cli, DOM_CHAL *clnt_chal,
DOM_CHAL *srv_chal)
{
prs_struct qbuf, rbuf;
NET_Q_REQ_CHAL q;
NET_R_REQ_CHAL r;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
prs_init(&qbuf, MAX_PDU_FRAG_LEN, cli->mem_ctx, MARSHALL);
prs_init(&rbuf, 0, cli->mem_ctx, UNMARSHALL);
DEBUG(4,("cli_net_req_chal: LSA Request Challenge from %s to %s: %s\n",
global_myname(), cli->desthost, credstr(clnt_chal->data)));
init_q_req_chal(&q, cli->srv_name_slash, global_myname(), clnt_chal);
if (!net_io_q_req_chal("", &q, &qbuf, 0) ||
!rpc_api_pipe_req(cli, NET_REQCHAL, &qbuf, &rbuf)) {
goto done;
}
if (!net_io_r_req_chal("", &r, &rbuf, 0)) {
goto done;
}
result = r.status;
if (NT_STATUS_IS_OK(result)) {
memcpy(srv_chal, r.srv_chal.data, sizeof(srv_chal->data));
}
done:
prs_mem_free(&qbuf);
prs_mem_free(&rbuf);
return result;
}
NTSTATUS cli_net_auth2(struct cli_state *cli,
uint16 sec_chan,
uint32 *neg_flags, DOM_CHAL *srv_chal)
{
prs_struct qbuf, rbuf;
NET_Q_AUTH_2 q;
NET_R_AUTH_2 r;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
fstring machine_acct;
prs_init(&qbuf, MAX_PDU_FRAG_LEN, cli->mem_ctx, MARSHALL);
prs_init(&rbuf, 0, cli->mem_ctx, UNMARSHALL);
if ( sec_chan == SEC_CHAN_DOMAIN )
fstr_sprintf( machine_acct, "%s$", lp_workgroup() );
else
fstrcpy( machine_acct, cli->mach_acct );
DEBUG(4,("cli_net_auth2: srv:%s acct:%s sc:%x mc: %s chal %s neg: %x\n",
cli->srv_name_slash, machine_acct, sec_chan, global_myname(),
credstr(cli->clnt_cred.challenge.data), *neg_flags));
init_q_auth_2(&q, cli->srv_name_slash, machine_acct,
sec_chan, global_myname(), &cli->clnt_cred.challenge,
*neg_flags);
if (!net_io_q_auth_2("", &q, &qbuf, 0) ||
!rpc_api_pipe_req(cli, NET_AUTH2, &qbuf, &rbuf)) {
goto done;
}
if (!net_io_r_auth_2("", &r, &rbuf, 0)) {
goto done;
}
result = r.status;
if (NT_STATUS_IS_OK(result)) {
UTIME zerotime;
zerotime.time = 0;
if (cred_assert( &r.srv_chal, cli->sess_key, srv_chal,
zerotime) == 0) {
DEBUG(0,("cli_net_auth2: server %s replied with bad credential (bad machine \
password ?).\n", cli->desthost ));
result = NT_STATUS_ACCESS_DENIED;
goto done;
}
*neg_flags = r.srv_flgs.neg_flags;
}
done:
prs_mem_free(&qbuf);
prs_mem_free(&rbuf);
return result;
}
NTSTATUS cli_net_auth3(struct cli_state *cli,
uint16 sec_chan,
uint32 *neg_flags, DOM_CHAL *srv_chal)
{
prs_struct qbuf, rbuf;
NET_Q_AUTH_3 q;
NET_R_AUTH_3 r;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
prs_init(&qbuf, MAX_PDU_FRAG_LEN, cli->mem_ctx, MARSHALL);
prs_init(&rbuf, 0, cli->mem_ctx, UNMARSHALL);
DEBUG(4,("cli_net_auth3: srv:%s acct:%s sc:%x mc: %s chal %s neg: %x\n",
cli->srv_name_slash, cli->mach_acct, sec_chan, global_myname(),
credstr(cli->clnt_cred.challenge.data), *neg_flags));
init_q_auth_3(&q, cli->srv_name_slash, cli->mach_acct,
sec_chan, global_myname(), &cli->clnt_cred.challenge,
*neg_flags);
if (!net_io_q_auth_3("", &q, &qbuf, 0) ||
!rpc_api_pipe_req(cli, NET_AUTH3, &qbuf, &rbuf)) {
goto done;
}
if (!net_io_r_auth_3("", &r, &rbuf, 0)) {
goto done;
}
result = r.status;
if (NT_STATUS_IS_OK(result)) {
UTIME zerotime;
zerotime.time = 0;
if (cred_assert( &r.srv_chal, cli->sess_key, srv_chal,
zerotime) == 0) {
DEBUG(0,("cli_net_auth3: server %s replied with bad credential (bad machine \
password ?).\n", cli->desthost ));
result = NT_STATUS_ACCESS_DENIED;
goto done;
}
*neg_flags = r.srv_flgs.neg_flags;
}
done:
prs_mem_free(&qbuf);
prs_mem_free(&rbuf);
return result;
}
NTSTATUS cli_nt_setup_creds(struct cli_state *cli,
uint16 sec_chan,
const unsigned char mach_pwd[16], uint32 *neg_flags, int level)
{
DOM_CHAL clnt_chal;
DOM_CHAL srv_chal;
UTIME zerotime;
NTSTATUS result;
generate_random_buffer(clnt_chal.data, 8);
result = cli_net_req_chal(cli, &clnt_chal, &srv_chal);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(0,("cli_nt_setup_creds: request challenge failed\n"));
return result;
}
cred_session_key(&clnt_chal, &srv_chal, mach_pwd,
cli->sess_key);
memset((char *)cli->sess_key+8, '\0', 8);
zerotime.time = 0;
cred_create(cli->sess_key, &clnt_chal, zerotime, &cli->clnt_cred.challenge);
switch (level) {
case 2:
result = cli_net_auth2(cli, sec_chan, neg_flags, &srv_chal);
break;
case 3:
result = cli_net_auth3(cli, sec_chan, neg_flags, &srv_chal);
break;
default:
DEBUG(1,("cli_nt_setup_creds: unsupported auth level: %d\n", level));
break;
}
if (!NT_STATUS_IS_OK(result))
DEBUG(3,("cli_nt_setup_creds: auth%d challenge failed %s\n", level, nt_errstr(result)));
return result;
}
NTSTATUS cli_netlogon_logon_ctrl2(struct cli_state *cli, TALLOC_CTX *mem_ctx,
uint32 query_level)
{
prs_struct qbuf, rbuf;
NET_Q_LOGON_CTRL2 q;
NET_R_LOGON_CTRL2 r;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
ZERO_STRUCT(q);
ZERO_STRUCT(r);
prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
init_net_q_logon_ctrl2(&q, cli->srv_name_slash, query_level);
if (!net_io_q_logon_ctrl2("", &q, &qbuf, 0) ||
!rpc_api_pipe_req(cli, NET_LOGON_CTRL2, &qbuf, &rbuf)) {
result = NT_STATUS_UNSUCCESSFUL;
goto done;
}
if (!net_io_r_logon_ctrl2("", &r, &rbuf, 0)) {
result = NT_STATUS_UNSUCCESSFUL;
goto done;
}
result = r.status;
done:
prs_mem_free(&qbuf);
prs_mem_free(&rbuf);
return result;
}
NTSTATUS cli_netlogon_getdcname(struct cli_state *cli, TALLOC_CTX *mem_ctx,
const char *domainname, fstring dcname)
{
prs_struct qbuf, rbuf;
NET_Q_GETDCNAME q;
NET_R_GETDCNAME r;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
ZERO_STRUCT(q);
ZERO_STRUCT(r);
prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
init_net_q_getdcname(&q, cli->srv_name_slash, domainname);
if (!net_io_q_getdcname("", &q, &qbuf, 0) ||
!rpc_api_pipe_req(cli, NET_GETDCNAME, &qbuf, &rbuf)) {
result = NT_STATUS_UNSUCCESSFUL;
goto done;
}
if (!net_io_r_getdcname("", &r, &rbuf, 0)) {
result = NT_STATUS_UNSUCCESSFUL;
goto done;
}
result = r.status;
if (NT_STATUS_IS_OK(result))
rpcstr_pull_unistr2_fstring(dcname, &r.uni_dcname);
done:
prs_mem_free(&qbuf);
prs_mem_free(&rbuf);
return result;
}
static void gen_next_creds( struct cli_state *cli, DOM_CRED *new_clnt_cred)
{
cli->clnt_cred.timestamp.time = time(NULL);
memcpy(new_clnt_cred, &cli->clnt_cred, sizeof(*new_clnt_cred));
cred_create(cli->sess_key, &(cli->clnt_cred.challenge),
new_clnt_cred->timestamp, &(new_clnt_cred->challenge));
}
NTSTATUS cli_netlogon_sam_sync(struct cli_state *cli, TALLOC_CTX *mem_ctx, DOM_CRED *ret_creds,
uint32 database_id, uint32 next_rid, uint32 *num_deltas,
SAM_DELTA_HDR **hdr_deltas,
SAM_DELTA_CTR **deltas)
{
prs_struct qbuf, rbuf;
NET_Q_SAM_SYNC q;
NET_R_SAM_SYNC r;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
DOM_CRED clnt_creds;
ZERO_STRUCT(q);
ZERO_STRUCT(r);
prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
gen_next_creds(cli, &clnt_creds);
init_net_q_sam_sync(&q, cli->srv_name_slash, cli->clnt_name_slash + 2,
&clnt_creds, ret_creds, database_id, next_rid);
if (!net_io_q_sam_sync("", &q, &qbuf, 0) ||
!rpc_api_pipe_req(cli, NET_SAM_SYNC, &qbuf, &rbuf)) {
result = NT_STATUS_UNSUCCESSFUL;
goto done;
}
if (!net_io_r_sam_sync("", cli->sess_key, &r, &rbuf, 0)) {
result = NT_STATUS_UNSUCCESSFUL;
goto done;
}
result = r.status;
*num_deltas = r.num_deltas2;
*hdr_deltas = r.hdr_deltas;
*deltas = r.deltas;
memcpy(ret_creds, &r.srv_creds, sizeof(*ret_creds));
done:
prs_mem_free(&qbuf);
prs_mem_free(&rbuf);
return result;
}
NTSTATUS cli_netlogon_sam_deltas(struct cli_state *cli, TALLOC_CTX *mem_ctx,
uint32 database_id, UINT64_S seqnum,
uint32 *num_deltas,
SAM_DELTA_HDR **hdr_deltas,
SAM_DELTA_CTR **deltas)
{
prs_struct qbuf, rbuf;
NET_Q_SAM_DELTAS q;
NET_R_SAM_DELTAS r;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
DOM_CRED clnt_creds;
ZERO_STRUCT(q);
ZERO_STRUCT(r);
prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
gen_next_creds(cli, &clnt_creds);
init_net_q_sam_deltas(&q, cli->srv_name_slash,
cli->clnt_name_slash + 2, &clnt_creds,
database_id, seqnum);
if (!net_io_q_sam_deltas("", &q, &qbuf, 0) ||
!rpc_api_pipe_req(cli, NET_SAM_DELTAS, &qbuf, &rbuf)) {
result = NT_STATUS_UNSUCCESSFUL;
goto done;
}
if (!net_io_r_sam_deltas("", cli->sess_key, &r, &rbuf, 0)) {
result = NT_STATUS_UNSUCCESSFUL;
goto done;
}
result = r.status;
*num_deltas = r.num_deltas2;
*hdr_deltas = r.hdr_deltas;
*deltas = r.deltas;
done:
prs_mem_free(&qbuf);
prs_mem_free(&rbuf);
return result;
}
NTSTATUS cli_netlogon_sam_logon(struct cli_state *cli, TALLOC_CTX *mem_ctx,
DOM_CRED *ret_creds,
const char *username, const char *password,
int logon_type)
{
prs_struct qbuf, rbuf;
NET_Q_SAM_LOGON q;
NET_R_SAM_LOGON r;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
DOM_CRED clnt_creds, dummy_rtn_creds;
NET_ID_INFO_CTR ctr;
NET_USER_INFO_3 user;
int validation_level = 3;
ZERO_STRUCT(q);
ZERO_STRUCT(r);
ZERO_STRUCT(dummy_rtn_creds);
prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
gen_next_creds(cli, &clnt_creds);
q.validation_level = validation_level;
if (ret_creds == NULL)
ret_creds = &dummy_rtn_creds;
ctr.switch_value = logon_type;
switch (logon_type) {
case INTERACTIVE_LOGON_TYPE: {
unsigned char lm_owf_user_pwd[16], nt_owf_user_pwd[16];
nt_lm_owf_gen(password, nt_owf_user_pwd, lm_owf_user_pwd);
init_id_info1(&ctr.auth.id1, lp_workgroup(),
0,
0xdead, 0xbeef,
username, cli->clnt_name_slash,
(const char *)cli->sess_key, lm_owf_user_pwd,
nt_owf_user_pwd);
break;
}
case NET_LOGON_TYPE: {
uint8 chal[8];
unsigned char local_lm_response[24];
unsigned char local_nt_response[24];
generate_random_buffer(chal, 8);
SMBencrypt(password, chal, local_lm_response);
SMBNTencrypt(password, chal, local_nt_response);
init_id_info2(&ctr.auth.id2, lp_workgroup(),
0,
0xdead, 0xbeef,
username, cli->clnt_name_slash, chal,
local_lm_response, 24, local_nt_response, 24);
break;
}
default:
DEBUG(0, ("switch value %d not supported\n",
ctr.switch_value));
goto done;
}
init_sam_info(&q.sam_id, cli->srv_name_slash, global_myname(),
&clnt_creds, ret_creds, logon_type,
&ctr);
if (!net_io_q_sam_logon("", &q, &qbuf, 0) ||
!rpc_api_pipe_req(cli, NET_SAMLOGON, &qbuf, &rbuf)) {
goto done;
}
r.user = &user;
if (!net_io_r_sam_logon("", &r, &rbuf, 0)) {
goto done;
}
result = r.status;
memcpy(ret_creds, &r.srv_creds, sizeof(*ret_creds));
done:
prs_mem_free(&qbuf);
prs_mem_free(&rbuf);
return result;
}
NTSTATUS cli_netlogon_sam_network_logon(struct cli_state *cli, TALLOC_CTX *mem_ctx,
DOM_CRED *ret_creds,
const char *username, const char *domain, const char *workstation,
const uint8 chal[8],
DATA_BLOB lm_response, DATA_BLOB nt_response,
NET_USER_INFO_3 *info3)
{
prs_struct qbuf, rbuf;
NET_Q_SAM_LOGON q;
NET_R_SAM_LOGON r;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
DOM_CRED clnt_creds, dummy_rtn_creds;
NET_ID_INFO_CTR ctr;
int validation_level = 3;
char *workstation_name_slash;
uint8 netlogon_sess_key[16];
static uint8 zeros[16];
ZERO_STRUCT(q);
ZERO_STRUCT(r);
ZERO_STRUCT(dummy_rtn_creds);
workstation_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", workstation);
if (!workstation_name_slash) {
DEBUG(0, ("talloc_asprintf failed!\n"));
return NT_STATUS_NO_MEMORY;
}
prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
gen_next_creds(cli, &clnt_creds);
q.validation_level = validation_level;
if (ret_creds == NULL)
ret_creds = &dummy_rtn_creds;
ctr.switch_value = NET_LOGON_TYPE;
init_id_info2(&ctr.auth.id2, domain,
0,
0xdead, 0xbeef,
username, workstation_name_slash, (const uchar*)chal,
lm_response.data, lm_response.length, nt_response.data, nt_response.length);
init_sam_info(&q.sam_id, cli->srv_name_slash, global_myname(),
&clnt_creds, ret_creds, NET_LOGON_TYPE,
&ctr);
if (!net_io_q_sam_logon("", &q, &qbuf, 0) ||
!rpc_api_pipe_req(cli, NET_SAMLOGON, &qbuf, &rbuf)) {
goto done;
}
r.user = info3;
if (!net_io_r_sam_logon("", &r, &rbuf, 0)) {
goto done;
}
ZERO_STRUCT(netlogon_sess_key);
memcpy(netlogon_sess_key, cli->sess_key, 8);
if (memcmp(zeros, info3->user_sess_key, 16) != 0) {
SamOEMhash(info3->user_sess_key, netlogon_sess_key, 16);
} else {
memset(info3->user_sess_key, '\0', 16);
}
if (memcmp(zeros, info3->padding, 16) != 0) {
SamOEMhash(info3->padding, netlogon_sess_key, 16);
} else {
memset(info3->padding, '\0', 16);
}
result = r.status;
memcpy(ret_creds, &r.srv_creds, sizeof(*ret_creds));
done:
prs_mem_free(&qbuf);
prs_mem_free(&rbuf);
return result;
}
NTSTATUS cli_net_srv_pwset(struct cli_state *cli, TALLOC_CTX *mem_ctx,
const char *machine_name, uint8 hashed_mach_pwd[16])
{
prs_struct rbuf;
prs_struct qbuf;
DOM_CRED new_clnt_cred;
NET_Q_SRV_PWSET q_s;
uint16 sec_chan_type = 2;
NTSTATUS nt_status;
gen_next_creds( cli, &new_clnt_cred);
prs_init(&qbuf , 1024, mem_ctx, MARSHALL);
prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
DEBUG(4,("cli_net_srv_pwset: srv:%s acct:%s sc: %d mc: %s clnt %s %x\n",
cli->srv_name_slash, cli->mach_acct, sec_chan_type, machine_name,
credstr(new_clnt_cred.challenge.data), new_clnt_cred.timestamp.time));
init_q_srv_pwset(&q_s, cli->srv_name_slash, (const char *)cli->sess_key,
cli->mach_acct, sec_chan_type, machine_name,
&new_clnt_cred, hashed_mach_pwd);
if(!net_io_q_srv_pwset("", &q_s, &qbuf, 0)) {
DEBUG(0,("cli_net_srv_pwset: Error : failed to marshall NET_Q_SRV_PWSET struct.\n"));
nt_status = NT_STATUS_UNSUCCESSFUL;
goto done;
}
if (rpc_api_pipe_req(cli, NET_SRVPWSET, &qbuf, &rbuf))
{
NET_R_SRV_PWSET r_s;
if (!net_io_r_srv_pwset("", &r_s, &rbuf, 0)) {
nt_status = NT_STATUS_UNSUCCESSFUL;
goto done;
}
nt_status = r_s.status;
if (!NT_STATUS_IS_OK(r_s.status))
{
DEBUG(0,("cli_net_srv_pwset: %s\n", nt_errstr(nt_status)));
goto done;
}
if (!clnt_deal_with_creds(cli->sess_key, &(cli->clnt_cred), &(r_s.srv_cred)))
{
DEBUG(0,("cli_net_srv_pwset: server %s replied with bad credential (bad machine \
password ?).\n", cli->desthost ));
nt_status = NT_STATUS_UNSUCCESSFUL;
}
}
done:
prs_mem_free(&qbuf);
prs_mem_free(&rbuf);
return nt_status;
}