Drop Iu*S support and related dependencies

There's optional libiu for Iu*S support but it's just a leftover from
pre repo-split times:
* it's not used by any code
* it's not checked by gerrit verification in osmo-ci
* it's disabled by default
* it's not supported in .deb packages

Instead of dragging old code in unknown stage of bit-rotting, let's just
drop it completely.

Change-Id: Id5678a74504b4456aba0438ccc34731770801128

2 files changed, 0 insertions, 63 deletions

diff --git a/openbsc/include/openbsc/Makefile.am b/openbsc/include/openbsc/Makefile.am
index 1fa30d56c..59b2231f3 100644
--- a/openbsc/include/openbsc/Makefile.am
+++ b/openbsc/include/openbsc/Makefile.am
@@ -32,7 +32,6 @@ noinst_HEADERS = \
 	handover.h \
 	handover_decision.h \
 	ipaccess.h \
-	iu.h \
 	meas_feed.h \
 	meas_rep.h \
 	mgcp.h \
diff --git a/openbsc/include/openbsc/iu.h b/openbsc/include/openbsc/iu.h
deleted file mode 100644
index f973ac1ba..000000000
--- a/openbsc/include/openbsc/iu.h
+++ /dev/null
@@ -1,62 +0,0 @@
-#pragma once
-
-#include <stdbool.h>
-
-struct sgsn_pdp_ctx;
-struct msgb;
-struct gprs_ra_id;
-
-struct RANAP_RAB_SetupOrModifiedItemIEs_s;
-struct RANAP_GlobalRNC_ID;
-
-struct ue_conn_ctx {
-	struct llist_head list;
-	struct osmo_sccp_link *link;
-	uint32_t conn_id;
-	int integrity_active;
-	struct gprs_ra_id ra_id;
-};
-
-enum iu_event_type {
-	IU_EVENT_RAB_ASSIGN,
-	IU_EVENT_SECURITY_MODE_COMPLETE,
-	IU_EVENT_IU_RELEASE, /* An actual Iu Release message was received */
-	IU_EVENT_LINK_INVALIDATED, /* A SUA link was lost or closed down */
-	/* FIXME: maybe IU_EVENT_IU_RELEASE and IU_EVENT_LINK_INVALIDATED
-	 * should be combined to one generic event that simply means the
-	 * ue_conn_ctx should no longer be used, for whatever reason. */
-};
-
-extern const struct value_string iu_event_type_names[];
-static inline const char *iu_event_type_str(enum iu_event_type e)
-{
-	return get_value_string(iu_event_type_names, e);
-}
-
-/* Implementations of iu_recv_cb_t shall find the ue_conn_ctx in msg->dst. */
-typedef int (* iu_recv_cb_t )(struct msgb *msg, struct gprs_ra_id *ra_id,
-			      /* TODO "gprs_" in generic CS+PS domain ^ */
-			      uint16_t *sai);
-
-typedef int (* iu_event_cb_t )(struct ue_conn_ctx *ue_ctx,
-			       enum iu_event_type type, void *data);
-
-typedef int (* iu_rab_ass_resp_cb_t )(struct ue_conn_ctx *ue_ctx, uint8_t rab_id,
-		struct RANAP_RAB_SetupOrModifiedItemIEs_s *setup_ies);
-
-int iu_init(void *ctx, const char *listen_addr, uint16_t listen_port,
-	    iu_recv_cb_t iu_recv_cb, iu_event_cb_t iu_event_cb);
-
-void iu_link_del(struct osmo_sccp_link *link);
-
-int iu_tx(struct msgb *msg, uint8_t sapi);
-
-int iu_page_cs(const char *imsi, const uint32_t *tmsi, uint16_t lac);
-int iu_page_ps(const char *imsi, const uint32_t *ptmsi, uint16_t lac, uint8_t rac);
-
-int iu_rab_act(struct ue_conn_ctx *ue_ctx, struct msgb *msg);
-int iu_rab_deact(struct ue_conn_ctx *ue_ctx, uint8_t rab_id);
-int iu_tx_sec_mode_cmd(struct ue_conn_ctx *uectx, struct gsm_auth_tuple *tp,
-		       int send_ck, int new_key);
-
-void iu_vty_init(int *asn_debug_p);