cbsp: Fix endless loop iteration when decoding cell list IEs
The CBSP code assumed that gsm0808_decode_cell_id_u() would return
the number of bytes it has consumed/parsed. But it actually always
returns '0', whcih makes us run in an endless loop :(
Change-Id: I5758af4ec11a827d4b888a3a16c4ec22de90a7d6
diff --git a/include/osmocom/gsm/gsm0808_utils.h b/include/osmocom/gsm/gsm0808_utils.h
index 76db2b6..ccdf5ed 100644
--- a/include/osmocom/gsm/gsm0808_utils.h
+++ b/include/osmocom/gsm/gsm0808_utils.h
@@ -95,6 +95,7 @@
int gsm0808_cell_id_to_cgi(struct osmo_cell_global_id *cgi, const struct gsm0808_cell_id *cid);
void gsm0808_msgb_put_cell_id_u(struct msgb *msg, enum CELL_IDENT id_discr, const union gsm0808_cell_id_u *u);
int gsm0808_decode_cell_id_u(union gsm0808_cell_id_u *out, enum CELL_IDENT discr, const uint8_t *buf, unsigned int len);
+int gsm0808_cell_id_size(enum CELL_IDENT discr);
uint8_t gsm0808_enc_cause(struct msgb *msg, uint16_t cause);
uint8_t gsm0808_enc_aoip_trasp_addr(struct msgb *msg,