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-rw-r--r--source4/libcli/dgram/libdgram.h6
-rw-r--r--source4/libcli/dgram/mailslot.c7
-rw-r--r--source4/libcli/dgram/netlogon.c33
-rw-r--r--source4/nbt_server/dgram/netlogon.c65
-rw-r--r--source4/torture/nbt/dgram.c3
5 files changed, 110 insertions, 4 deletions
diff --git a/source4/libcli/dgram/libdgram.h b/source4/libcli/dgram/libdgram.h
index 0b8157f0c6..163cb1e37d 100644
--- a/source4/libcli/dgram/libdgram.h
+++ b/source4/libcli/dgram/libdgram.h
@@ -116,14 +116,20 @@ NTSTATUS dgram_mailslot_send(struct nbt_dgram_socket *dgmsock,
const char *mailslot_name,
struct nbt_name *dest_name,
const char *dest_address,
+ int dest_port,
struct nbt_name *src_name,
DATA_BLOB *request);
NTSTATUS dgram_mailslot_netlogon_send(struct nbt_dgram_socket *dgmsock,
struct nbt_name *dest_name,
const char *dest_address,
+ int dest_port,
struct nbt_name *src_name,
struct nbt_netlogon_packet *request);
+NTSTATUS dgram_mailslot_netlogon_reply(struct nbt_dgram_socket *dgmsock,
+ struct nbt_dgram_packet *request,
+ const char *mailslot_name,
+ struct nbt_netlogon_packet *reply);
NTSTATUS dgram_mailslot_netlogon_parse(struct dgram_mailslot_handler *dgmslot,
TALLOC_CTX *mem_ctx,
struct nbt_dgram_packet *dgram,
diff --git a/source4/libcli/dgram/mailslot.c b/source4/libcli/dgram/mailslot.c
index 3b7fcdcd81..1035853240 100644
--- a/source4/libcli/dgram/mailslot.c
+++ b/source4/libcli/dgram/mailslot.c
@@ -142,6 +142,7 @@ NTSTATUS dgram_mailslot_send(struct nbt_dgram_socket *dgmsock,
const char *mailslot_name,
struct nbt_name *dest_name,
const char *dest_address,
+ int dest_port,
struct nbt_name *src_name,
DATA_BLOB *request)
{
@@ -152,6 +153,10 @@ NTSTATUS dgram_mailslot_send(struct nbt_dgram_socket *dgmsock,
struct smb_trans_body *trans;
NTSTATUS status;
+ if (dest_port == 0) {
+ dest_port = lp_dgram_port();
+ }
+
ZERO_STRUCT(packet);
packet.msg_type = msg_type;
packet.flags = DGRAM_FLAG_FIRST;
@@ -183,7 +188,7 @@ NTSTATUS dgram_mailslot_send(struct nbt_dgram_socket *dgmsock,
trans->mailslot_name = mailslot_name;
trans->data = *request;
- status = nbt_dgram_send(dgmsock, &packet, dest_address, lp_dgram_port());
+ status = nbt_dgram_send(dgmsock, &packet, dest_address, dest_port);
talloc_free(tmp_ctx);
diff --git a/source4/libcli/dgram/netlogon.c b/source4/libcli/dgram/netlogon.c
index 869e99e2fc..138cc0d484 100644
--- a/source4/libcli/dgram/netlogon.c
+++ b/source4/libcli/dgram/netlogon.c
@@ -34,6 +34,7 @@
NTSTATUS dgram_mailslot_netlogon_send(struct nbt_dgram_socket *dgmsock,
struct nbt_name *dest_name,
const char *dest_address,
+ int dest_port,
struct nbt_name *src_name,
struct nbt_netlogon_packet *request)
{
@@ -51,7 +52,37 @@ NTSTATUS dgram_mailslot_netlogon_send(struct nbt_dgram_socket *dgmsock,
status = dgram_mailslot_send(dgmsock, DGRAM_DIRECT_UNIQUE,
NBT_MAILSLOT_NETLOGON,
- dest_name, dest_address, src_name, &blob);
+ dest_name, dest_address, dest_port,
+ src_name, &blob);
+ talloc_free(tmp_ctx);
+ return status;
+}
+
+
+/*
+ send a netlogon mailslot reply
+*/
+NTSTATUS dgram_mailslot_netlogon_reply(struct nbt_dgram_socket *dgmsock,
+ struct nbt_dgram_packet *request,
+ const char *mailslot_name,
+ struct nbt_netlogon_packet *reply)
+{
+ NTSTATUS status;
+ DATA_BLOB blob;
+ TALLOC_CTX *tmp_ctx = talloc_new(dgmsock);
+
+ status = ndr_push_struct_blob(&blob, tmp_ctx, reply,
+ (ndr_push_flags_fn_t)ndr_push_nbt_netlogon_packet);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return status;
+ }
+
+ status = dgram_mailslot_send(dgmsock, DGRAM_DIRECT_UNIQUE,
+ mailslot_name,
+ &request->data.msg.source_name,
+ request->source, request->src_port,
+ &request->data.msg.dest_name, &blob);
talloc_free(tmp_ctx);
return status;
}
diff --git a/source4/nbt_server/dgram/netlogon.c b/source4/nbt_server/dgram/netlogon.c
index 471145c4ac..e013742f0a 100644
--- a/source4/nbt_server/dgram/netlogon.c
+++ b/source4/nbt_server/dgram/netlogon.c
@@ -27,6 +27,44 @@
#include "lib/socket/socket.h"
/*
+ reply to a GETDC request
+ */
+static void nbtd_netlogon_getdc(struct dgram_mailslot_handler *dgmslot,
+ struct nbt_dgram_packet *packet,
+ const char *src_address, int src_port,
+ struct nbt_netlogon_packet *netlogon)
+{
+ struct nbt_name *name = &packet->data.msg.dest_name;
+ struct nbt_netlogon_packet reply;
+ struct nbt_netlogon_response_from_pdc *pdc;
+
+ /* only answer getdc requests on the PDC or LOGON names */
+ if (name->type != NBT_NAME_PDC && name->type != NBT_NAME_LOGON) {
+ return;
+ }
+
+ /* setup a GETDC reply */
+ reply.command = NETLOGON_RESPONSE_FROM_PDC;
+ pdc = &reply.req.response;
+
+ pdc->pdc_name = lp_netbios_name();
+ pdc->unicode_pdc_name = pdc->pdc_name;
+ pdc->domain_name = lp_workgroup();
+ pdc->nt_version = 1;
+ pdc->lmnt_token = 0xFFFF;
+ pdc->lm20_token = 0xFFFF;
+
+
+ packet->data.msg.dest_name.type = 0;
+
+ dgram_mailslot_netlogon_reply(dgmslot->dgmsock,
+ packet,
+ netlogon->req.pdc.mailslot_name,
+ &reply);
+}
+
+
+/*
handle incoming netlogon mailslot requests
*/
void nbtd_mailslot_netlogon_handler(struct dgram_mailslot_handler *dgmslot,
@@ -34,16 +72,41 @@ void nbtd_mailslot_netlogon_handler(struct dgram_mailslot_handler *dgmslot,
const char *src_address, int src_port)
{
NTSTATUS status = NT_STATUS_NO_MEMORY;
+ struct nbtd_interface *iface =
+ talloc_get_type(dgmslot->private, struct nbtd_interface);
struct nbt_netlogon_packet *netlogon =
talloc(dgmslot, struct nbt_netlogon_packet);
+ struct nbtd_iface_name *iname;
+ struct nbt_name *name = &packet->data.msg.dest_name;
+
if (netlogon == NULL) goto failed;
- DEBUG(2,("netlogon request from %s:%d\n", src_address, src_port));
+ /*
+ see if the we are listening on the destination netbios name
+ */
+ iname = nbtd_find_iname(iface, name, 0);
+ if (iname == NULL) {
+ status = NT_STATUS_BAD_NETWORK_NAME;
+ goto failed;
+ }
+
+ DEBUG(2,("netlogon request to %s from %s:%d\n",
+ nbt_name_string(netlogon, name), src_address, src_port));
status = dgram_mailslot_netlogon_parse(dgmslot, netlogon, packet, netlogon);
if (!NT_STATUS_IS_OK(status)) goto failed;
NDR_PRINT_DEBUG(nbt_netlogon_packet, netlogon);
+ switch (netlogon->command) {
+ case NETLOGON_QUERY_FOR_PDC:
+ nbtd_netlogon_getdc(dgmslot, packet, src_address, src_port, netlogon);
+ break;
+ default:
+ DEBUG(2,("unknown netlogon op %d from %s:%d\n",
+ netlogon->command, src_address, src_port));
+ break;
+ }
+
talloc_free(netlogon);
return;
diff --git a/source4/torture/nbt/dgram.c b/source4/torture/nbt/dgram.c
index c5a3b61136..b62c41b17d 100644
--- a/source4/torture/nbt/dgram.c
+++ b/source4/torture/nbt/dgram.c
@@ -95,7 +95,8 @@ static BOOL nbt_test_netlogon(TALLOC_CTX *mem_ctx,
myname.type = NBT_NAME_CLIENT;
myname.scope = NULL;
- status = dgram_mailslot_netlogon_send(dgmsock, &name, address, &myname, &logon);
+ status = dgram_mailslot_netlogon_send(dgmsock, &name, address,
+ 0, &myname, &logon);
if (!NT_STATUS_IS_OK(status)) {
printf("Failed to send netlogon request - %s\n", nt_errstr(status));
goto failed;
generated by cgit (git 2.34.1) at 2024-11-25 05:56:37 +0000