Use libsmpputil functions in smpp_mirror tool

Related: OS#5568
Change-Id: Icb046570803acb3eff89e2a4eb979c4899d485f7
diff --git a/include/osmocom/smpp/smpp.h b/include/osmocom/smpp/smpp.h
index db4101d..54e5de7 100644
--- a/include/osmocom/smpp/smpp.h
+++ b/include/osmocom/smpp/smpp.h
@@ -49,5 +49,7 @@
 
 struct esme *esme_alloc(void *ctx);
 uint32_t smpp_msgb_cmdid(struct msgb *msg);
+uint32_t esme_inc_seq_nr(struct esme *esme);
+int pack_and_send(struct esme *esme, uint32_t type, void *ptr);
 int smpp_openbsc_alloc_init(void *ctx);
 int smpp_openbsc_start(struct gsm_network *net);