From f7a04de762d751e5968b69622707f11a54a0479b Mon Sep 17 00:00:00 2001
From: Guido Casati <hello@guidocasati.com>
Date: Tue, 29 Apr 2025 15:50:32 +0200
Subject: [PATCH] Add ciUE telnet command to trigger UE initiated
 deregistration

---
 common/utils/telnetsrv/telnetsrv_ciUE.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/common/utils/telnetsrv/telnetsrv_ciUE.c b/common/utils/telnetsrv/telnetsrv_ciUE.c
index 721cb0e5cd..90e044ed86 100644
--- a/common/utils/telnetsrv/telnetsrv_ciUE.c
+++ b/common/utils/telnetsrv/telnetsrv_ciUE.c
@@ -102,12 +102,21 @@ int force_crnti_ra(char *buf, int debug, telnet_printfunc_t prnt)
   return 0;
 }
 
+static int force_deregistration(char *buf, int debug, telnet_printfunc_t prnt)
+{
+  MessageDef *msg = itti_alloc_new_message(TASK_NAS_NRUE, 0, NAS_DEREGISTRATION_REQ);
+  NAS_DEREGISTRATION_REQ(msg).cause = AS_DETACH;
+  itti_send_msg_to_task(TASK_NAS_NRUE, 0, msg);
+  return 0;
+}
+
 /* Telnet shell command definitions */
 static telnetshell_cmddef_t cicmds[] = {
   {"sync_state", "[UE_ID(int,opt)]", get_sync_state},
   {"force_rlf", "", force_rlf},
   {"force_RRC_IDLE", "", force_RRC_IDLE},
   {"force_crnti_ra", "", force_crnti_ra},
+  {"deregistration", "", force_deregistration},
   {"", "", NULL},
 };