samples/bpf: run cleanup routines when receiving SIGTERM
Shahid Habib noticed that when xdp1 was killed from a different console the xdp
program was not cleaned-up properly in the kernel and it continued to forward
traffic.
Most of the applications in samples/bpf cleanup properly, but only when getting
SIGINT. Since kill defaults to using SIGTERM, add support to cleanup when the
application receives either SIGINT or SIGTERM.
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Reported-by: Shahid Habib <shahid.habib@broadcom.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/samples/bpf/cookie_uid_helper_example.c b/samples/bpf/cookie_uid_helper_example.c
index b08ab4e..9d751e2 100644
--- a/samples/bpf/cookie_uid_helper_example.c
+++ b/samples/bpf/cookie_uid_helper_example.c
@@ -306,7 +306,9 @@
prog_attach_iptables(argv[2]);
if (cfg_test_traffic) {
if (signal(SIGINT, finish) == SIG_ERR)
- error(1, errno, "register handler failed");
+ error(1, errno, "register SIGINT handler failed");
+ if (signal(SIGTERM, finish) == SIG_ERR)
+ error(1, errno, "register SIGTERM handler failed");
while (!test_finish) {
print_table();
printf("\n");