From 68621e26da1196e688961ac43eeb072f18696662 Mon Sep 17 00:00:00 2001
From: Thomas Schoebel-Theuer <tst@1und1.de>
Date: Fri, 5 May 2023 15:40:06 +0200
Subject: [PATCH] server: minimum SS_CONNECTED

---
 kernel/mars_server.c | 7 +++++++
 kernel/mars_server.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/kernel/mars_server.c b/kernel/mars_server.c
index 9f15f64e..b1e567c9 100644
--- a/kernel/mars_server.c
+++ b/kernel/mars_server.c
@@ -1067,6 +1067,13 @@ void check_bricks(void)
 			continue;
 		brick_yield();
 		if (mars_socket_is_alive(handler_socket)) {
+			if (!running_brick->shutdown_jiffies) {
+				running_brick->shutdown_jiffies = jiffies;
+				continue;
+			}
+			/* Minimum connection duration, for better sysadmin detection */
+			if (running_brick->shutdown_jiffies + 3 * HZ <= jiffies)
+				continue;
 			mars_shutdown_socket(handler_socket);
 			/* only once per round */
 			break;
diff --git a/kernel/mars_server.h b/kernel/mars_server.h
index 0bff6cbe..8f06a992 100644
--- a/kernel/mars_server.h
+++ b/kernel/mars_server.h
@@ -62,6 +62,7 @@ struct server_brick {
 	struct task_struct *handler_thread;
 	struct task_struct *cb_thread;
 	void *delegated_brick;
+	unsigned long shutdown_jiffies;
 	wait_queue_head_t startup_event;
 	wait_queue_head_t cb_event;
 	struct mutex cb_mutex;