[CRIU] [PATCH] [POC] zdtm: check in-flight connections

[Andrey Vagin]

From: Andrew Vagin <avagin at virtuozzo.com>

Signed-off-by: Andrew Vagin <avagin at virtuozzo.com>
---
 test/zdtm/static/Makefile             |  2 ++
 test/zdtm/static/socket_listen.c      | 15 +++++++++++++++
 test/zdtm/static/socket_listen02.c    |  1 +
 test/zdtm/static/socket_listen02.desc |  1 +
 4 files changed, 19 insertions(+)
 create mode 120000 test/zdtm/static/socket_listen02.c
 create mode 100644 test/zdtm/static/socket_listen02.desc

diff --git a/test/zdtm/static/Makefile b/test/zdtm/static/Makefile
index 681d5fa..8063744 100644
--- a/test/zdtm/static/Makefile
+++ b/test/zdtm/static/Makefile
@@ -28,6 +28,7 @@ TST_NOFILE	=				\
 		sched_prio00			\
 		sched_policy00			\
 		socket_listen			\
+		socket_listen02			\
 		socket_listen6			\
 		socket_udp			\
 		socket6_udp			\
@@ -389,6 +390,7 @@ socket-tcp6-local: override CFLAGS += -D ZDTM_TCP_LOCAL -D ZDTM_IPV6
 socket-tcp-local: override CFLAGS += -D ZDTM_TCP_LOCAL
 socket-tcp-nfconntrack: override CFLAGS += -D ZDTM_TCP_LOCAL -DZDTM_CONNTRACK
 socket_listen6: override CFLAGS += -D ZDTM_IPV6
+socket_listen02: override CFLAGS += -D ZDTM_IN_FLIGHT_CONNECTION
 sigpending:		override LDLIBS += -lrt
 vdso01:			override LDLIBS += -lrt
 mntns_link_remap:	override CFLAGS += -DZDTM_LINK_REMAP
diff --git a/test/zdtm/static/socket_listen.c b/test/zdtm/static/socket_listen.c
index f11d379..fc3e430 100644
--- a/test/zdtm/static/socket_listen.c
+++ b/test/zdtm/static/socket_listen.c
@@ -21,6 +21,7 @@ const char *test_author = "Stanislav Kinsbursky <skinsbursky at openvz.org>";
 #include <stdlib.h>
 #include <wait.h>
 #include <netinet/tcp.h>
+#include <fcntl.h>
 
 static int port = 8880;
 
@@ -48,9 +49,23 @@ int main(int argc, char **argv)
 		return 1;
 	}
 
+#ifdef ZDTM_IN_FLIGHT_CONNECTION
+	fd = tcp_init_client(ZDTM_FAMILY, "localhost", port);
+	if (fd < 0)
+		return 1;
+#endif
+
 	test_daemon();
 	test_waitsig();
 
+#ifdef ZDTM_IN_FLIGHT_CONNECTION
+	fcntl(fd_s, F_SETFL, O_NONBLOCK);
+	fd = tcp_accept_server(fd_s);
+	if (fd < 0)
+		pr_err("Skip in-flight connection\n");
+	fcntl(fd_s, F_SETFL, 0);
+#endif
+
 	sigemptyset(&sa.sa_mask);
 	if (sigaction(SIGCHLD, &sa, NULL))
 		pr_perror("Can't set SIGCHLD handler");
diff --git a/test/zdtm/static/socket_listen02.c b/test/zdtm/static/socket_listen02.c
new file mode 120000
index 0000000..d026b3b
--- /dev/null
+++ b/test/zdtm/static/socket_listen02.c
@@ -0,0 +1 @@
+socket_listen.c
\ No newline at end of file
diff --git a/test/zdtm/static/socket_listen02.desc b/test/zdtm/static/socket_listen02.desc
new file mode 100644
index 0000000..b3122bc
--- /dev/null
+++ b/test/zdtm/static/socket_listen02.desc
@@ -0,0 +1 @@
+{'opts' : '--tcp-established --skip-in-flight'}
-- 
2.7.4