gbproxy: Refactor local message generation
This patch adds und uses the function gbproxy_gsm48_to_peer() which
takes a GSM 04.08 message, encapsulates it in BSSGP and LLC, and
sends it to the BSS peer. This function increments vu_gen_tx_bss
which is now used instead of imsi_acq_retries to set the N(U) of the
outgoing message.
Since imsi_acq_retries isn't currently incremented before a Detach
Accept is generated, this patch also fixes the N(U) of such messages.
Sponsored-by: On-Waves ehf
diff --git a/openbsc/src/gprs/gb_proxy_tlli.c b/openbsc/src/gprs/gb_proxy_tlli.c
index fae05ed..093d2b3 100644
--- a/openbsc/src/gprs/gb_proxy_tlli.c
+++ b/openbsc/src/gprs/gb_proxy_tlli.c
@@ -238,6 +238,8 @@
link_info->tlli.ptmsi = GSM_RESERVED_TMSI;
link_info->sgsn_tlli.ptmsi = GSM_RESERVED_TMSI;
+ link_info->vu_gen_tx_bss = GBPROXY_INIT_VU_GEN_TX;
+
INIT_LLIST_HEAD(&link_info->stored_msgs);
return link_info;