/usr/include/libsmpp34/def_frame/ is in libsmpp34-dev 1.10-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/libsmpp34/def_frame/alert_notification.frame
/usr/include/libsmpp34/def_frame/alert_notification.tlv
/usr/include/libsmpp34/def_frame/bind_receiver.frame
/usr/include/libsmpp34/def_frame/bind_receiver_resp.frame
/usr/include/libsmpp34/def_frame/bind_receiver_resp.tlv
/usr/include/libsmpp34/def_frame/bind_transceiver.frame
/usr/include/libsmpp34/def_frame/bind_transceiver_resp.frame
/usr/include/libsmpp34/def_frame/bind_transceiver_resp.tlv
/usr/include/libsmpp34/def_frame/bind_transmitter.frame
/usr/include/libsmpp34/def_frame/bind_transmitter_resp.frame
/usr/include/libsmpp34/def_frame/bind_transmitter_resp.tlv
/usr/include/libsmpp34/def_frame/cancel_sm.frame
/usr/include/libsmpp34/def_frame/clean.frame
/usr/include/libsmpp34/def_frame/dad.frame
/usr/include/libsmpp34/def_frame/data_sm.frame
/usr/include/libsmpp34/def_frame/data_sm.tlv
/usr/include/libsmpp34/def_frame/data_sm_resp.frame
/usr/include/libsmpp34/def_frame/data_sm_resp.tlv
/usr/include/libsmpp34/def_frame/deliver_sm.frame
/usr/include/libsmpp34/def_frame/deliver_sm.tlv
/usr/include/libsmpp34/def_frame/deliver_sm_resp.frame
/usr/include/libsmpp34/def_frame/header.frame
/usr/include/libsmpp34/def_frame/outbind.frame
/usr/include/libsmpp34/def_frame/query_sm.frame
/usr/include/libsmpp34/def_frame/query_sm_resp.frame
/usr/include/libsmpp34/def_frame/replace_sm.frame
/usr/include/libsmpp34/def_frame/submit_multi.dad
/usr/include/libsmpp34/def_frame/submit_multi.frame
/usr/include/libsmpp34/def_frame/submit_multi.tlv
/usr/include/libsmpp34/def_frame/submit_multi_resp.frame
/usr/include/libsmpp34/def_frame/submit_multi_resp.udad
/usr/include/libsmpp34/def_frame/submit_sm.frame
/usr/include/libsmpp34/def_frame/submit_sm.tlv
/usr/include/libsmpp34/def_frame/submit_sm_resp.frame
/usr/include/libsmpp34/def_frame/tlv.frame
/usr/include/libsmpp34/def_frame/tlv.operation
/usr/include/libsmpp34/def_frame/udad.frame