From 31bdcfe4b647c8c783efa32da3c333b5f166a42d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 20 Jun 2024 06:07:27 +0200 Subject: Adding upstream version 2:4.20.2+dfsg. Signed-off-by: Daniel Baumann --- source4/nbt_server/dgram/request.c | 56 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 54 insertions(+), 2 deletions(-) (limited to 'source4/nbt_server/dgram/request.c') diff --git a/source4/nbt_server/dgram/request.c b/source4/nbt_server/dgram/request.c index ea2b6e8..7614514 100644 --- a/source4/nbt_server/dgram/request.c +++ b/source4/nbt_server/dgram/request.c @@ -27,6 +27,11 @@ #include "nbt_server/dgram/proto.h" #include "librpc/gen_ndr/ndr_nbt.h" #include "param/param.h" +#include "lib/util/util_str_escape.h" +#include "lib/util/util_net.h" +#include "../source3/include/fstring.h" +#include "../source3/libsmb/nmblib.h" +#include "../source3/libsmb/unexpected.h" /* a list of mailslots that we have static handlers for @@ -51,8 +56,55 @@ 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); + struct nbtd_interface *iface = + talloc_get_type_abort(dgmsock->incoming.private_data, + struct nbtd_interface); + struct nbtd_server *nbtsrv = iface->nbtsrv; + const char *mailslot_name = NULL; + struct packet_struct *pstruct = NULL; + DATA_BLOB blob = { .length = 0, }; + enum ndr_err_code ndr_err; + + mailslot_name = dgram_mailslot_name(packet); + if (mailslot_name != NULL) { + DBG_DEBUG("Unexpected mailslot[%s] datagram request from %s:%d\n", + log_escape(packet, mailslot_name), + src->addr, src->port); + } else { + DBG_DEBUG("Unexpected general datagram request from %s:%d\n", + src->addr, src->port); + } + + if (CHECK_DEBUGLVL(DBGLVL_DEBUG)) { + NDR_PRINT_DEBUG(nbt_dgram_packet, packet); + } + + /* + * For now we only pass DGRAM_DIRECT_UNIQUE + * messages via nb_packet_dispatch() to + * nbtsrv->unexpected_server + */ + if (packet->msg_type != DGRAM_DIRECT_UNIQUE) { + return; + } + + ndr_err = ndr_push_struct_blob(&blob, packet, packet, + (ndr_push_flags_fn_t)ndr_push_nbt_dgram_packet); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + DBG_ERR("ndr_push_nbt_dgram_packet - %s\n", + ndr_errstr(ndr_err)); + return; + } + + pstruct = parse_packet((char *)blob.data, + blob.length, + DGRAM_PACKET, + interpret_addr2(src->addr), + src->port); + if (pstruct != NULL) { + nb_packet_dispatch(nbtsrv->unexpected_server, pstruct); + free_packet(pstruct); + } } -- cgit v1.2.3