From 4b6c8afcb2e0c7c366bf0a98138d659055860af3 Mon Sep 17 00:00:00 2001
From: Alexander Couzens <lynxis@fe80.eu>
Date: Sun, 11 Oct 2020 20:15:25 +0200
Subject: gprs_ns2: add gprs_ns2_free_nses() to free all NS-E

Allow users to clean up most of the state (e.g. the PCU).

Change-Id: Ia00753a64b7622a0864341f51ea49b6963543755
---
 include/osmocom/gprs/gprs_ns2.h |  1 +
 src/gb/gprs_ns2.c               | 16 ++++++++++------
 src/gb/libosmogb.map            |  1 +
 3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/include/osmocom/gprs/gprs_ns2.h b/include/osmocom/gprs/gprs_ns2.h
index 2c58723a..75315308 100644
--- a/include/osmocom/gprs/gprs_ns2.h
+++ b/include/osmocom/gprs/gprs_ns2.h
@@ -101,6 +101,7 @@ struct gprs_ns2_nse *gprs_ns2_nse_by_nsei(struct gprs_ns2_inst *nsi, uint16_t ns
 struct gprs_ns2_nse *gprs_ns2_create_nse(struct gprs_ns2_inst *nsi, uint16_t nsei);
 uint16_t gprs_ns2_nse_nsei(struct gprs_ns2_nse *nse);
 void gprs_ns2_free_nse(struct gprs_ns2_nse *nse);
+void gprs_ns2_free_nses(struct gprs_ns2_inst *nsi);
 
 /* create vc */
 void gprs_ns2_free_nsvc(struct gprs_ns2_vc *nsvc);
diff --git a/src/gb/gprs_ns2.c b/src/gb/gprs_ns2.c
index e3fc0786..50acf99a 100644
--- a/src/gb/gprs_ns2.c
+++ b/src/gb/gprs_ns2.c
@@ -598,6 +598,15 @@ void gprs_ns2_free_nse(struct gprs_ns2_nse *nse)
 	talloc_free(nse);
 }
 
+void gprs_ns2_free_nses(struct gprs_ns2_inst *nsi)
+{
+	struct gprs_ns2_nse *nse, *ntmp;
+
+	llist_for_each_entry_safe(nse, ntmp, &nsi->nse, list) {
+		gprs_ns2_free_nse(nse);
+	}
+}
+
 static inline int ns2_tlv_parse(struct tlv_parsed *dec,
 			 const uint8_t *buf, int buf_len, uint8_t lv_tag,
 			 uint8_t lv_tag2)
@@ -997,15 +1006,10 @@ struct gprs_ns2_inst *gprs_ns2_instantiate(void *ctx, osmo_prim_cb cb, void *cb_
  *  \param[in] nsi NS instance to destroy */
 void gprs_ns2_free(struct gprs_ns2_inst *nsi)
 {
-	struct gprs_ns2_nse *nse, *ntmp;
-
 	if (!nsi)
 		return;
 
-	llist_for_each_entry_safe(nse, ntmp, &nsi->nse, list) {
-		gprs_ns2_free_nse(nse);
-	}
-
+	gprs_ns2_free_nses(nsi);
 	gprs_ns2_free_binds(nsi);
 
 	talloc_free(nsi);
diff --git a/src/gb/libosmogb.map b/src/gb/libosmogb.map
index d23d263b..a1854709 100644
--- a/src/gb/libosmogb.map
+++ b/src/gb/libosmogb.map
@@ -81,6 +81,7 @@ gprs_ns2_free;
 gprs_ns2_free_bind;
 gprs_ns2_free_binds;
 gprs_ns2_free_nse;
+gprs_ns2_free_nses;
 gprs_ns2_free_nsvc;
 gprs_ns2_frgre_bind;
 gprs_ns2_instantiate;
-- 
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