1 files changed, 25 insertions, 0 deletions
diff --git a/include/osmocom/sigtran/protocol/sccp_scmg.h b/include/osmocom/sigtran/protocol/sccp_scmg.h
new file mode 100644
index 0000000..5d97828
--- /dev/null
+++ b/include/osmocom/sigtran/protocol/sccp_scmg.h
@@ -0,0 +1,25 @@
+#pragma once
+
+/* SCCP Management as per Section 5.3 of ITU-T Q.713 */
+
+enum sccp_scmg_msg_type {
+	SCCP_SCMG_MSGT_SSA	= 0x01,	/* Subsystem Allowed */
+	SCCP_SCMG_MSGT_SSP	= 0x02,	/* Subsystem Prohibited */
+	SCCP_SCMG_MSGT_SST	= 0x03,	/* Subsystem Status Test */
+	SCCP_SCMG_MSGT_SOR	= 0x04,	/* Subsystem Out-of-service Request */
+	SCCP_SCMG_MSGT_SOG	= 0x05,	/* Subsystem Out-of-service Grant */
+	SCCP_SCMG_MSGT_SSC	= 0x06,	/* Subsystem Congested */
+};
+
+struct sccp_scmg_msg {
+	uint8_t msg_type;	/* enum sccp_scmg_msg_type */
+	uint8_t affected_ssn;
+	uint16_t affected_pc;
+	uint8_t smi;
+	/* one octet, only in case of SSC */
+	uint8_t ssc_congestion_lvl[0];
+} __attribute__ ((packed));
+
+extern const struct value_string sccp_scmg_msgt_names[];
+static inline const char *sccp_scmg_msgt_name(enum sccp_scmg_msg_type msgt)
+{ return get_value_string(sccp_scmg_msgt_names, msgt); }