/*
handle incoming netlogon mailslot requests
*/
void nbtd_mailslot_netlogon_handler(struct dgram_mailslot_handler *dgmslot,
struct nbt_dgram_packet *packet,
struct socket_address *src)
{
NTSTATUS status = NT_STATUS_NO_MEMORY;
struct nbtd_interface *iface =
talloc_get_type(dgmslot->private_data, struct nbtd_interface);
struct nbtd_interface *reply_iface = nbtd_find_reply_iface(
iface, src->addr, false);
struct nbt_netlogon_response *response = NULL;
char *reply_mailslot = NULL;
if (reply_iface->ip_address == NULL) {
DBG_WARNING("Could not obtain own IP address for datagram "
"socket\n");
return;
}
status = nbtd_mailslot_netlogon_reply(
iface, packet, src, dgmslot, &response, &reply_mailslot);
if (NT_STATUS_IS_OK(status)) {
dgram_mailslot_netlogon_reply(
reply_iface->dgmsock, packet,
lpcfg_netbios_name(iface->nbtsrv->task->lp_ctx),
reply_mailslot, response);
}
TALLOC_FREE(response);
TALLOC_FREE(reply_mailslot);
}
/*
reply to a SAM LOGON request
*/
static void nbtd_ntlogon_sam_logon(struct dgram_mailslot_handler *dgmslot,
struct nbtd_interface *iface,
struct nbt_dgram_packet *packet,
const struct socket_address *src,
struct nbt_ntlogon_packet *ntlogon)
{
struct nbt_name *name = &packet->data.msg.dest_name;
struct nbtd_interface *reply_iface = nbtd_find_reply_iface(iface, src->addr, False);
struct nbt_ntlogon_packet reply;
struct nbt_ntlogon_sam_logon_reply *logon;
/* only answer sam logon requests on the PDC or LOGON names */
if (name->type != NBT_NAME_PDC && name->type != NBT_NAME_LOGON) {
return;
}
/* setup a SAM LOGON reply */
ZERO_STRUCT(reply);
reply.command = NTLOGON_SAM_LOGON_REPLY;
logon = &reply.req.reply;
logon->server = talloc_asprintf(packet, "\\\\%s", lp_netbios_name());
logon->user_name = ntlogon->req.logon.user_name;
logon->domain = lp_workgroup();
logon->nt_version = 1;
logon->lmnt_token = 0xFFFF;
logon->lm20_token = 0xFFFF;
packet->data.msg.dest_name.type = 0;
dgram_mailslot_ntlogon_reply(reply_iface->dgmsock,
packet,
ntlogon->req.logon.mailslot_name,
&reply);
}
/*
reply to a ADS style GETDC request
*/
static void nbtd_netlogon_samlogon(struct dgram_mailslot_handler *dgmslot,
struct nbtd_interface *iface,
struct nbt_dgram_packet *packet,
const struct socket_address *src,
struct nbt_netlogon_packet *netlogon)
{
struct nbt_name *name = &packet->data.msg.dest_name;
struct nbtd_interface *reply_iface = nbtd_find_reply_iface(iface, src->addr, false);
struct ldb_context *samctx;
const char *my_ip = reply_iface->ip_address;
struct dom_sid *sid;
struct nbt_netlogon_response netlogon_response;
NTSTATUS status;
if (!my_ip) {
DEBUG(0, ("Could not obtain own IP address for datagram socket\n"));
return;
}
/* only answer getdc requests on the PDC or LOGON names */
if (name->type != NBT_NAME_PDC && name->type != NBT_NAME_LOGON) {
return;
}
samctx = iface->nbtsrv->sam_ctx;
if (netlogon->req.logon.sid_size) {
sid = &netlogon->req.logon.sid;
} else {
sid = NULL;
}
status = fill_netlogon_samlogon_response(samctx, packet, NULL, name->name, sid, NULL,
netlogon->req.logon.user_name, netlogon->req.logon.acct_control, src->addr,
netlogon->req.logon.nt_version, iface->nbtsrv->task->lp_ctx, &netlogon_response.data.samlogon, false);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(2,("NBT netlogon query failed domain=%s sid=%s version=%d - %s\n",
name->name, dom_sid_string(packet, sid), netlogon->req.logon.nt_version, nt_errstr(status)));
return;
}
netlogon_response.response_type = NETLOGON_SAMLOGON;
packet->data.msg.dest_name.type = 0;
dgram_mailslot_netlogon_reply(reply_iface->dgmsock,
packet,
lpcfg_netbios_name(iface->nbtsrv->task->lp_ctx),
netlogon->req.logon.mailslot_name,
&netlogon_response);
}
/*
reply to a GETDC request
*/
static void nbtd_netlogon_getdc(struct dgram_mailslot_handler *dgmslot,
struct nbtd_interface *iface,
struct nbt_dgram_packet *packet,
const struct socket_address *src,
struct nbt_netlogon_packet *netlogon)
{
struct nbt_name *name = &packet->data.msg.dest_name;
struct nbtd_interface *reply_iface = nbtd_find_reply_iface(iface, src->addr, false);
struct nbt_netlogon_response_from_pdc *pdc;
struct ldb_context *samctx;
struct nbt_netlogon_response netlogon_response;
/* only answer getdc requests on the PDC or LOGON names */
if (name->type != NBT_NAME_PDC && name->type != NBT_NAME_LOGON) {
return;
}
samctx = iface->nbtsrv->sam_ctx;
if (lpcfg_server_role(iface->nbtsrv->task->lp_ctx) != ROLE_DOMAIN_CONTROLLER
|| !samdb_is_pdc(samctx)) {
DEBUG(2, ("Not a PDC, so not processing LOGON_PRIMARY_QUERY\n"));
return;
}
if (strcasecmp_m(name->name, lpcfg_workgroup(iface->nbtsrv->task->lp_ctx)) != 0) {
DEBUG(5,("GetDC requested for a domian %s that we don't host\n", name->name));
return;
}
/* setup a GETDC reply */
ZERO_STRUCT(netlogon_response);
netlogon_response.response_type = NETLOGON_GET_PDC;
pdc = &netlogon_response.data.get_pdc;
pdc->command = NETLOGON_RESPONSE_FROM_PDC;
pdc->pdc_name = lpcfg_netbios_name(iface->nbtsrv->task->lp_ctx);
pdc->unicode_pdc_name = pdc->pdc_name;
pdc->domain_name = lpcfg_workgroup(iface->nbtsrv->task->lp_ctx);
pdc->nt_version = 1;
pdc->lmnt_token = 0xFFFF;
pdc->lm20_token = 0xFFFF;
dgram_mailslot_netlogon_reply(reply_iface->dgmsock,
packet,
lpcfg_netbios_name(iface->nbtsrv->task->lp_ctx),
netlogon->req.pdc.mailslot_name,
&netlogon_response);
}