From ef7c687828efd488369ff860523aa15a42c72587 Mon Sep 17 00:00:00 2001
From: wujing <wujing50@huawei.com>
Date: Mon, 13 Apr 2020 04:58:46 -0400
Subject: [PATCH 06/49] modify container exit code and stop signal

Signed-off-by: wujing <wujing50@huawei.com>
---
 src/lxc/lxccontainer.c | 10 ++++++++--
 src/lxc/start.c        | 28 ++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/src/lxc/lxccontainer.c b/src/lxc/lxccontainer.c
index f4462fd..a617172 100644
--- a/src/lxc/lxccontainer.c
+++ b/src/lxc/lxccontainer.c
@@ -2101,7 +2101,12 @@ WRAP_API_1(bool, lxcapi_reboot2, int)
 static bool do_lxcapi_shutdown(struct lxc_container *c, int timeout)
 {
 	__do_close int pidfd = -EBADF, state_client_fd = -EBADF;
+#ifdef HAVE_ISULAD
+    // isulad: keep default signal the same as docker
+	int haltsignal = SIGTERM;
+#else
 	int haltsignal = SIGPWR;
+#endif
 	pid_t pid = -1;
 	lxc_state_t states[MAX_STATE] = {0};
 	int killret, ret;
@@ -2117,12 +2122,13 @@ static bool do_lxcapi_shutdown(struct lxc_container *c, int timeout)
 	if (pid <= 0)
 		return true;
 
-	/* Detect whether we should send SIGRTMIN + 3 (e.g. systemd). */
 	if (c->lxc_conf && c->lxc_conf->haltsignal)
 		haltsignal = c->lxc_conf->haltsignal;
+#ifndef HAVE_ISULAD
+	/* Detect whether we should send SIGRTMIN + 3 (e.g. systemd). */
 	else if (task_blocks_signal(pid, (SIGRTMIN + 3)))
 		haltsignal = (SIGRTMIN + 3);
-
+#endif
 
 	/*
 	 * Add a new state client before sending the shutdown signal so
diff --git a/src/lxc/start.c b/src/lxc/start.c
index a25bd04..5dcf828 100644
--- a/src/lxc/start.c
+++ b/src/lxc/start.c
@@ -1886,10 +1886,18 @@ out_sync_fini:
 	return -1;
 }
 
+#ifdef HAVE_ISULAD
+// isulad: send '128 + signal' if container is killed by signal.
+#define EXIT_SIGNAL_OFFSET 128
+#endif
+
 int __lxc_start(struct lxc_handler *handler, struct lxc_operations *ops,
 		void *data, const char *lxcpath, bool daemonize, int *error_num)
 {
 	int ret, status;
+#ifdef HAVE_ISULAD
+    int exit_code;
+#endif
 	const char *name = handler->name;
 	struct lxc_conf *conf = handler->conf;
 	struct cgroup_ops *cgroup_ops;
@@ -1976,6 +1984,21 @@ int __lxc_start(struct lxc_handler *handler, struct lxc_operations *ops,
 	 * reboot. This should mean it was an lxc-execute which simply exited.
 	 * In any case, treat it as a 'halt'.
 	 */
+#ifdef HAVE_ISULAD
+	// isulad: recored log for container init exit
+	if (WIFSIGNALED(status)) {
+		int signal = WTERMSIG(status);
+		signal = WTERMSIG(status);
+		exit_code = EXIT_SIGNAL_OFFSET + signal;
+		ERROR("Container \"%s\" init exited with signal %d", name, signal);
+	} else if (WIFEXITED(status)) {
+		exit_code = WEXITSTATUS(status);
+		ERROR("Container \"%s\" init exited with status %d", name, exit_code);
+	} else {
+		exit_code = -1;
+		ERROR("Container \"%s\" init exited with unknown status", name);
+	}
+#else
 	if (WIFSIGNALED(status)) {
 		switch(WTERMSIG(status)) {
 		case SIGINT: /* halt */
@@ -1993,6 +2016,7 @@ int __lxc_start(struct lxc_handler *handler, struct lxc_operations *ops,
 			break;
 		}
 	}
+#endif
 
 	ret = lxc_restore_phys_nics_to_netns(handler);
 	if (ret < 0)
@@ -2000,7 +2024,11 @@ int __lxc_start(struct lxc_handler *handler, struct lxc_operations *ops,
 
 	close_prot_errno_disarm(handler->pinfd);
 
+#ifdef HAVE_ISULAD
+	lxc_monitor_send_exit_code(name, exit_code, handler->lxcpath);
+#else
 	lxc_monitor_send_exit_code(name, status, handler->lxcpath);
+#endif
 	lxc_error_set_and_log(handler->pid, status);
 	if (error_num)
 		*error_num = handler->exit_status;
-- 
1.8.3.1