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-rw-r--r--source4/nbt_server/dgram/browse.c84
-rw-r--r--source4/nbt_server/dgram/netlogon.c209
-rw-r--r--source4/nbt_server/dgram/ntlogon.c121
-rw-r--r--source4/nbt_server/dgram/request.c153
4 files changed, 567 insertions, 0 deletions
diff --git a/source4/nbt_server/dgram/browse.c b/source4/nbt_server/dgram/browse.c
new file mode 100644
index 0000000000..2e12fa114a
--- /dev/null
+++ b/source4/nbt_server/dgram/browse.c
@@ -0,0 +1,84 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ NBT datagram browse server
+
+ Copyright (C) Andrew Tridgell 2005
+
+ 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/>.
+*/
+
+#include "includes.h"
+#include "nbt_server/nbt_server.h"
+#include "lib/socket/socket.h"
+#include "librpc/gen_ndr/ndr_nbt.h"
+
+static const char *nbt_browse_opcode_string(enum nbt_browse_opcode r)
+{
+ const char *val = NULL;
+
+ switch (r) {
+ case HostAnnouncement: val = "HostAnnouncement"; break;
+ case AnnouncementRequest: val = "AnnouncementRequest"; break;
+ case Election: val = "Election"; break;
+ case GetBackupListReq: val = "GetBackupListReq"; break;
+ case GetBackupListResp: val = "GetBackupListResp"; break;
+ case BecomeBackup: val = "BecomeBackup"; break;
+ case DomainAnnouncement: val = "DomainAnnouncement"; break;
+ case MasterAnnouncement: val = "MasterAnnouncement"; break;
+ case ResetBrowserState: val = "ResetBrowserState"; break;
+ case LocalMasterAnnouncement: val = "LocalMasterAnnouncement"; break;
+ }
+
+ return val;
+}
+
+/*
+ handle incoming browse mailslot requests
+*/
+void nbtd_mailslot_browse_handler(struct dgram_mailslot_handler *dgmslot,
+ struct nbt_dgram_packet *packet,
+ struct socket_address *src)
+{
+ struct nbt_browse_packet *browse = talloc(dgmslot, struct nbt_browse_packet);
+ struct nbt_name *name = &packet->data.msg.dest_name;
+ NTSTATUS status;
+
+ if (browse == NULL) {
+ status = NT_STATUS_INVALID_PARAMETER;
+ goto failed;
+ }
+
+ status = dgram_mailslot_browse_parse(dgmslot, browse, packet, browse);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+
+ DEBUG(2,("Browse %s (Op %d) on '%s' '%s' from %s:%d\n",
+ nbt_browse_opcode_string(browse->opcode), browse->opcode,
+ nbt_name_string(browse, name), dgmslot->mailslot_name,
+ src->addr, src->port));
+
+ if (DEBUGLEVEL >= 10) {
+ NDR_PRINT_DEBUG(nbt_browse_packet, browse);
+ }
+
+ talloc_free(browse);
+ return;
+
+failed:
+ DEBUG(2,("nbtd browse handler failed from %s:%d to %s - %s\n",
+ src->addr, src->port, nbt_name_string(browse, name),
+ nt_errstr(status)));
+ talloc_free(browse);
+
+}
diff --git a/source4/nbt_server/dgram/netlogon.c b/source4/nbt_server/dgram/netlogon.c
new file mode 100644
index 0000000000..5e95270b7d
--- /dev/null
+++ b/source4/nbt_server/dgram/netlogon.c
@@ -0,0 +1,209 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ NBT datagram netlogon server
+
+ Copyright (C) Andrew Tridgell 2005
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 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/>.
+*/
+
+#include "includes.h"
+#include "nbt_server/nbt_server.h"
+#include "lib/socket/socket.h"
+#include "lib/ldb/include/ldb.h"
+#include "dsdb/samdb/samdb.h"
+#include "auth/auth.h"
+#include "util/util_ldb.h"
+#include "param/param.h"
+#include "smbd/service_task.h"
+#include "cldap_server/cldap_server.h"
+#include "libcli/security/security.h"
+
+/*
+ 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;
+ const char *ref_attrs[] = {"nETBIOSName", NULL};
+ struct ldb_message **ref_res;
+ struct ldb_context *samctx;
+ struct ldb_dn *partitions_basedn;
+ struct nbt_netlogon_response netlogon_response;
+ int ret;
+
+ /* 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 (!samdb_is_pdc(samctx)) {
+ DEBUG(2, ("Not a PDC, so not processing LOGON_PRIMARY_QUERY\n"));
+ return;
+ }
+
+ partitions_basedn = samdb_partitions_dn(samctx, packet);
+
+ ret = gendb_search(samctx, packet, partitions_basedn, &ref_res, ref_attrs,
+ "(&(&(nETBIOSName=%s)(objectclass=crossRef))(ncName=*))",
+ name->name);
+
+ if (ret != 1) {
+ DEBUG(2,("Unable to find domain reference '%s' in sam\n", name->name));
+ return;
+ }
+
+ /* setup a GETDC reply */
+ ZERO_STRUCT(netlogon_response);
+ netlogon_response.response_type = NETLOGON_GET_PDC;
+ pdc = &netlogon_response.get_pdc;
+
+ pdc->command = NETLOGON_RESPONSE_FROM_PDC;
+ pdc->pdc_name = lp_netbios_name(iface->nbtsrv->task->lp_ctx);
+ pdc->unicode_pdc_name = pdc->pdc_name;
+ pdc->domain_name = samdb_result_string(ref_res[0], "nETBIOSName", name->name);;
+ pdc->nt_version = 1;
+ pdc->lmnt_token = 0xFFFF;
+ pdc->lm20_token = 0xFFFF;
+
+ dgram_mailslot_netlogon_reply(reply_iface->dgmsock,
+ packet,
+ lp_netbios_name(iface->nbtsrv->task->lp_ctx),
+ netlogon->req.pdc.mailslot_name,
+ &netlogon_response);
+}
+
+
+/*
+ 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.samlogon);
+ 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,
+ lp_netbios_name(iface->nbtsrv->task->lp_ctx),
+ netlogon->req.logon.mailslot_name,
+ &netlogon_response);
+}
+
+
+/*
+ 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, 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;
+
+ /*
+ 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->addr, src->port));
+ status = dgram_mailslot_netlogon_parse_request(dgmslot, netlogon, packet, netlogon);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+
+ switch (netlogon->command) {
+ case LOGON_PRIMARY_QUERY:
+ nbtd_netlogon_getdc(dgmslot, iface, packet,
+ src, netlogon);
+ break;
+ case LOGON_SAM_LOGON_REQUEST:
+ nbtd_netlogon_samlogon(dgmslot, iface, packet,
+ src, netlogon);
+ break;
+ default:
+ DEBUG(2,("unknown netlogon op %d from %s:%d\n",
+ netlogon->command, src->addr, src->port));
+ NDR_PRINT_DEBUG(nbt_netlogon_packet, netlogon);
+ break;
+ }
+
+ talloc_free(netlogon);
+ return;
+
+failed:
+ DEBUG(2,("nbtd netlogon handler failed from %s:%d to %s - %s\n",
+ src->addr, src->port, nbt_name_string(netlogon, name),
+ nt_errstr(status)));
+ talloc_free(netlogon);
+}
diff --git a/source4/nbt_server/dgram/ntlogon.c b/source4/nbt_server/dgram/ntlogon.c
new file mode 100644
index 0000000000..352be34489
--- /dev/null
+++ b/source4/nbt_server/dgram/ntlogon.c
@@ -0,0 +1,121 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ NBT datagram ntlogon server
+
+ Copyright (C) Andrew Tridgell 2005
+
+ 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/>.
+*/
+
+#include "includes.h"
+#include "nbt_server/nbt_server.h"
+#include "smbd/service_task.h"
+#include "lib/socket/socket.h"
+#include "librpc/gen_ndr/ndr_nbt.h"
+#include "param/param.h"
+
+/*
+ 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(iface->nbtsrv->task->lp_ctx));
+ logon->user_name = ntlogon->req.logon.user_name;
+ logon->domain = lp_workgroup(iface->nbtsrv->task->lp_ctx);
+ 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,
+ lp_netbios_name(iface->nbtsrv->task->lp_ctx),
+ ntlogon->req.logon.mailslot_name,
+ &reply);
+}
+
+/*
+ handle incoming ntlogon mailslot requests
+*/
+void nbtd_mailslot_ntlogon_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, struct nbtd_interface);
+ struct nbt_ntlogon_packet *ntlogon =
+ talloc(dgmslot, struct nbt_ntlogon_packet);
+ struct nbtd_iface_name *iname;
+ struct nbt_name *name = &packet->data.msg.dest_name;
+
+ if (ntlogon == NULL) goto failed;
+
+ /*
+ 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,("ntlogon request to %s from %s:%d\n",
+ nbt_name_string(ntlogon, name), src->addr, src->port));
+ status = dgram_mailslot_ntlogon_parse(dgmslot, ntlogon, packet, ntlogon);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+
+ NDR_PRINT_DEBUG(nbt_ntlogon_packet, ntlogon);
+
+ switch (ntlogon->command) {
+ case NTLOGON_SAM_LOGON:
+ nbtd_ntlogon_sam_logon(dgmslot, iface, packet, src, ntlogon);
+ break;
+ default:
+ DEBUG(2,("unknown ntlogon op %d from %s:%d\n",
+ ntlogon->command, src->addr, src->port));
+ break;
+ }
+
+ talloc_free(ntlogon);
+ return;
+
+failed:
+ DEBUG(2,("nbtd ntlogon handler failed from %s:%d to %s - %s\n",
+ src->addr, src->port, nbt_name_string(ntlogon, name),
+ nt_errstr(status)));
+ talloc_free(ntlogon);
+}
diff --git a/source4/nbt_server/dgram/request.c b/source4/nbt_server/dgram/request.c
new file mode 100644
index 0000000000..277b64741d
--- /dev/null
+++ b/source4/nbt_server/dgram/request.c
@@ -0,0 +1,153 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ NBT datagram server
+
+ Copyright (C) Andrew Tridgell 2005
+
+ 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/>.
+*/
+
+#include "includes.h"
+#include "nbt_server/nbt_server.h"
+#include "smbd/service_task.h"
+#include "lib/socket/socket.h"
+#include "libcli/resolve/resolve.h"
+#include "nbt_server/dgram/proto.h"
+#include "librpc/gen_ndr/ndr_nbt.h"
+#include "param/param.h"
+
+/*
+ a list of mailslots that we have static handlers for
+*/
+static const struct {
+ const char *mailslot_name;
+ dgram_mailslot_handler_t handler;
+} mailslot_handlers[] = {
+ /* Handle both NTLOGON and NETLOGON in the same function, as
+ * they are very similar */
+ { NBT_MAILSLOT_NETLOGON, nbtd_mailslot_netlogon_handler },
+ { NBT_MAILSLOT_NTLOGON, nbtd_mailslot_netlogon_handler },
+ { NBT_MAILSLOT_BROWSE, nbtd_mailslot_browse_handler }
+};
+
+/*
+ receive an incoming dgram request. This is used for general datagram
+ requests. Mailslot requests for our listening mailslots
+ are handled in the specific mailslot handlers
+*/
+void dgram_request_handler(struct nbt_dgram_socket *dgmsock,
+ struct nbt_dgram_packet *packet,
+ struct socket_address *src)
+{
+ DEBUG(0,("General datagram request from %s:%d\n", src->addr, src->port));
+ NDR_PRINT_DEBUG(nbt_dgram_packet, packet);
+}
+
+
+/*
+ setup the port 138 datagram listener for a given interface
+*/
+NTSTATUS nbtd_dgram_setup(struct nbtd_interface *iface, const char *bind_address)
+{
+ struct nbt_dgram_socket *bcast_dgmsock = NULL;
+ struct nbtd_server *nbtsrv = iface->nbtsrv;
+ struct socket_address *bcast_addr, *bind_addr;
+ NTSTATUS status;
+ TALLOC_CTX *tmp_ctx = talloc_new(iface);
+ /* the list of mailslots that we are interested in */
+ int i;
+
+ if (!tmp_ctx) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (strcmp("0.0.0.0", iface->netmask) != 0) {
+ /* listen for broadcasts on port 138 */
+ bcast_dgmsock = nbt_dgram_socket_init(iface,
+ nbtsrv->task->event_ctx,
+ lp_iconv_convenience(nbtsrv->task->lp_ctx));
+ if (!bcast_dgmsock) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ bcast_addr = socket_address_from_strings(tmp_ctx, bcast_dgmsock->sock->backend_name,
+ iface->bcast_address,
+ lp_dgram_port(iface->nbtsrv->task->lp_ctx));
+ if (!bcast_addr) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = socket_listen(bcast_dgmsock->sock, bcast_addr, 0, 0);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ DEBUG(0,("Failed to bind to %s:%d - %s\n",
+ iface->bcast_address, lp_dgram_port(iface->nbtsrv->task->lp_ctx),
+ nt_errstr(status)));
+ return status;
+ }
+
+ dgram_set_incoming_handler(bcast_dgmsock, dgram_request_handler, iface);
+ }
+
+ /* listen for unicasts on port 138 */
+ iface->dgmsock = nbt_dgram_socket_init(iface, nbtsrv->task->event_ctx,
+ lp_iconv_convenience(nbtsrv->task->lp_ctx));
+ if (!iface->dgmsock) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ bind_addr = socket_address_from_strings(tmp_ctx, iface->dgmsock->sock->backend_name,
+ bind_address, lp_dgram_port(iface->nbtsrv->task->lp_ctx));
+ if (!bind_addr) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = socket_listen(iface->dgmsock->sock, bind_addr, 0, 0);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ DEBUG(0,("Failed to bind to %s:%d - %s\n",
+ bind_address, lp_dgram_port(iface->nbtsrv->task->lp_ctx), nt_errstr(status)));
+ return status;
+ }
+
+ dgram_set_incoming_handler(iface->dgmsock, dgram_request_handler, iface);
+
+ talloc_free(tmp_ctx);
+
+ for (i=0;i<ARRAY_SIZE(mailslot_handlers);i++) {
+ /* note that we don't need to keep the pointer
+ to the dgmslot around - the callback is all
+ we need */
+ struct dgram_mailslot_handler *dgmslot;
+
+ if (bcast_dgmsock) {
+ dgmslot = dgram_mailslot_listen(bcast_dgmsock,
+ mailslot_handlers[i].mailslot_name,
+ mailslot_handlers[i].handler, iface);
+ NT_STATUS_HAVE_NO_MEMORY(dgmslot);
+ }
+
+ dgmslot = dgram_mailslot_listen(iface->dgmsock,
+ mailslot_handlers[i].mailslot_name,
+ mailslot_handlers[i].handler, iface);
+ NT_STATUS_HAVE_NO_MEMORY(dgmslot);
+ }
+
+ return NT_STATUS_OK;
+}
generated by cgit (git 2.34.1) at 2025-08-08 12:38:24 +0000