From a7650de412009e8cb43dab29e56cb8f2411fcd6d Mon Sep 17 00:00:00 2001
From: Pau Espin Pedrol <pespin@sysmocom.de>
Date: Fri, 8 Dec 2023 16:29:30 +0100
Subject: [PATCH] netif: sctp.h: Introduce value_string for enum
 sctp_sstat_state

This can be used by apps retrieving struct sctp_status through
getsockopt(SCTP_STATUS).
The relevant field is spinfo_state: osmo_sctp_sstat_state_str(st.sstat_state);

Change-Id: Id7d8a9ad7b32406ac603e520b33809d7ae5c762f
Related: SYS#6636
---
 include/osmocom/netif/sctp.h |  5 +++++
 src/sctp.c                   | 14 ++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/include/osmocom/netif/sctp.h b/include/osmocom/netif/sctp.h
index 374cf6e..9dcb6dd 100644
--- a/include/osmocom/netif/sctp.h
+++ b/include/osmocom/netif/sctp.h
@@ -53,3 +53,8 @@ enum sctp_spinfo_state;
 extern const struct value_string osmo_sctp_spinfo_state_strs[];
 static inline const char *osmo_sctp_spinfo_state_str(enum sctp_spinfo_state val)
 { return get_value_string(osmo_sctp_spinfo_state_strs, val); }
+
+enum sctp_sstat_state;
+extern const struct value_string osmo_sctp_sstat_state_strs[];
+static inline const char *osmo_sctp_sstat_state_str(enum sctp_sstat_state val)
+{ return get_value_string(osmo_sctp_sstat_state_strs, val); }
diff --git a/src/sctp.c b/src/sctp.c
index c97ff97..807bdac 100644
--- a/src/sctp.c
+++ b/src/sctp.c
@@ -79,3 +79,17 @@ const struct value_string osmo_sctp_spinfo_state_strs[] = {
 	{ SCTP_UNKNOWN,		"UNKNOWN" },
 	{ 0, NULL }
 };
+
+/* linux/sctp.h enum sctp_sstat_state */
+const struct value_string osmo_sctp_sstat_state_strs[] = {
+	{ SCTP_EMPTY,			"EMPTY" },
+	{ SCTP_CLOSED,			"CLOSED" },
+	{ SCTP_COOKIE_WAIT,		"COOKIE_WAIT" },
+	{ SCTP_COOKIE_ECHOED,		"COOKIE_ECHOED" },
+	{ SCTP_ESTABLISHED,		"ESTABLISHED" },
+	{ SCTP_SHUTDOWN_PENDING,	"SHUTDOWN_PENDING" },
+	{ SCTP_SHUTDOWN_SENT,		"SHUTDOWN_SENT" },
+	{ SCTP_SHUTDOWN_RECEIVED,	"SHUTDOWN_RECEIVED" },
+	{ SCTP_SHUTDOWN_ACK_SENT,	"SHUTDOWN_ACK_SENT" },
+	{ 0, NULL }
+};