From ab8db8fabd2e4cc8e19806c06719f5a5261729d8 Mon Sep 17 00:00:00 2001
From: Pau Espin Pedrol <pespin@sysmocom.de>
Date: Tue, 12 Mar 2024 18:25:44 +0100
Subject: [PATCH] llsk: Add APIs to interact with llsk->link

This also clarifies the type of available uses/features.

Change-Id: I7723467d34670f89710f55c0c6731e2e38560f35
---
 include/osmocom/hnodeb/llsk.h |  2 ++
 src/osmo-hnodeb/hnb.c         |  4 +---
 src/osmo-hnodeb/llsk.c        | 12 ++++++++++++
 src/osmo-hnodeb/main.c        |  2 +-
 4 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/include/osmocom/hnodeb/llsk.h b/include/osmocom/hnodeb/llsk.h
index bde531a..6a2686a 100644
--- a/include/osmocom/hnodeb/llsk.h
+++ b/include/osmocom/hnodeb/llsk.h
@@ -30,6 +30,8 @@ struct hnb;
 struct rtp_conn;
 
 int hnb_llsk_alloc(struct hnb *hnb);
+void hnb_llsk_free(struct hnb *hnb);
+int hnb_llsk_start_listen(struct hnb *hnb);
 bool hnb_llsk_connected(const struct hnb *hnb);
 bool hnb_llsk_can_be_configured(struct hnb *hnb);
 
diff --git a/src/osmo-hnodeb/hnb.c b/src/osmo-hnodeb/hnb.c
index 1d03826..ad56dcc 100644
--- a/src/osmo-hnodeb/hnb.c
+++ b/src/osmo-hnodeb/hnb.c
@@ -88,9 +88,7 @@ void hnb_free(struct hnb *hnb)
 	}
 	hnb_iuh_free(hnb);
 
-	osmo_timer_del(&hnb->llsk.defer_configure_ind_timer);
-	osmo_prim_srv_link_free(hnb->llsk.link);
-	hnb->llsk.link = NULL;
+	hnb_llsk_free(hnb);
 
 	hnb_gtp_unbind(hnb);
 
diff --git a/src/osmo-hnodeb/llsk.c b/src/osmo-hnodeb/llsk.c
index b76b595..7e25176 100644
--- a/src/osmo-hnodeb/llsk.c
+++ b/src/osmo-hnodeb/llsk.c
@@ -219,3 +219,15 @@ int hnb_llsk_alloc(struct hnb *hnb)
 	osmo_timer_setup(&hnb->llsk.defer_configure_ind_timer, llsk_defer_configure_ind_timer_cb, hnb);
 	return 0;
 }
+
+void hnb_llsk_free(struct hnb *hnb)
+{
+	osmo_timer_del(&hnb->llsk.defer_configure_ind_timer);
+	osmo_prim_srv_link_free(hnb->llsk.link);
+	hnb->llsk.link = NULL;
+}
+
+int hnb_llsk_start_listen(struct hnb *hnb)
+{
+	return osmo_prim_srv_link_open(g_hnb->llsk.link);
+}
diff --git a/src/osmo-hnodeb/main.c b/src/osmo-hnodeb/main.c
index e724791..d542c06 100644
--- a/src/osmo-hnodeb/main.c
+++ b/src/osmo-hnodeb/main.c
@@ -275,7 +275,7 @@ int main(int argc, char **argv)
 	}
 
 	/* Start listening on lower layer unix domain socket: */
-	rc = osmo_prim_srv_link_open(g_hnb->llsk.link);
+	rc = hnb_llsk_start_listen(g_hnb);
 	if (rc < 0) {
 		perror("Error opening lower layer socket");
 		exit(1);