libgb: don't call directly into GMM / LLC layer
Instead of direct function calls to individual functions, we now
generate primitives (osmo_prim) and send them to one
application-provided function "bssgp_prim_cb()"
diff --git a/openbsc/include/osmocom/gprs/gprs_bssgp.h b/openbsc/include/osmocom/gprs/gprs_bssgp.h
index 4fcdfb5..e060fc0 100644
--- a/openbsc/include/osmocom/gprs/gprs_bssgp.h
+++ b/openbsc/include/osmocom/gprs/gprs_bssgp.h
@@ -144,6 +144,7 @@
/* Our implementation */
#include <osmocom/gsm/gsm48.h>
+#include <osmocom/gsm/prim.h>
/* gprs_bssgp_util.c */
extern struct gprs_ns_inst *bssgp_nsi;
@@ -155,6 +156,40 @@
/* Chapter 10.4.14: Status */
int bssgp_tx_status(uint8_t cause, uint16_t *bvci, struct msgb *orig_msg);
+enum bssgp_prim {
+ PRIM_BSSGP_DL_UD,
+ PRIM_BSSGP_UL_UD,
+ PRIM_BSSGP_PTM_UD,
+
+ PRIM_BSSGP_GMM_SUSPEND,
+ PRIM_BSSGP_GMM_RESUME,
+ PRIM_BSSGP_GMM_PAGING,
+
+ PRIM_NM_FLUSH_LL,
+ PRIM_NM_LLC_DISCARDED,
+ PRIM_NM_BVC_RESET,
+ PRIM_NM_BVC_BLOCK,
+ PRIM_NM_BVC_UNBLOCK,
+};
+
+struct osmo_bssgp_prim {
+ struct osmo_prim_hdr oph;
+
+ /* common fields */
+ uint16_t nsei;
+ uint16_t bvci;
+ uint32_t tlli;
+ struct tlv_parsed *tp;
+ struct gprs_ra_id *ra_id;
+
+ /* specific fields */
+ union {
+ struct {
+ uint8_t *suspend_ref;
+ } resume;
+ } u;
+};
+
/* gprs_bssgp.c */
#define BVC_S_BLOCKED 0x0001
@@ -264,4 +299,6 @@
int gprs_bssgp_vty_init(void);
void gprs_bssgp_set_log_ss(int ss);
+int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx);
+
#endif /* _GPRS_BSSGP_H */