Commit 5c3cf87d authored by Jakub Kicinski's avatar Jakub Kicinski Committed by Daniel Borkmann
Browse files

samples: bpf: force IPv4 in ping 



ping localhost may default of IPv6 on modern systems, but
samples are trying to only parse IPv4.  Force IPv4.

samples/bpf/tracex1_user.c doesn't interpret the packet so
we don't care which IP version will be used there.

Signed-off-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: default avatarQuentin Monnet <quentin.monnet@netronome.com>
Acked-by: default avatarAndrii Nakryiko <andriin@fb.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parent ebace0e9

samples/bpf/sock_example.c

+1 −1
Original line number Diff line number Diff line
@@ -99,7 +99,7 @@ int main(void) 
{

	FILE *f;



	f = popen("ping -c5 localhost", "r");

	f = popen("ping -4 -c5 localhost", "r");

	(void)f;



	return test_sock();

samples/bpf/sockex1_user.c

+1 −1
Original line number Diff line number Diff line
@@ -26,7 +26,7 @@ int main(int ac, char **argv) 
	assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,

			  sizeof(prog_fd[0])) == 0);



	f = popen("ping -c5 localhost", "r");

	f = popen("ping -4 -c5 localhost", "r");

	(void) f;



	for (i = 0; i < 5; i++) {

samples/bpf/sockex2_user.c

+1 −1
Original line number Diff line number Diff line
@@ -34,7 +34,7 @@ int main(int ac, char **argv) 
	assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,

			  sizeof(prog_fd[0])) == 0);



	f = popen("ping -c5 localhost", "r");

	f = popen("ping -4 -c5 localhost", "r");

	(void) f;



	for (i = 0; i < 5; i++) {

samples/bpf/sockex3_user.c

+1 −1
Original line number Diff line number Diff line
@@ -58,7 +58,7 @@ int main(int argc, char **argv) 
			  sizeof(__u32)) == 0);



	if (argc > 1)

		f = popen("ping -c5 localhost", "r");

		f = popen("ping -4 -c5 localhost", "r");

	else

		f = popen("netperf -l 4 localhost", "r");

	(void) f;

samples/bpf/tracex2_user.c

+1 −1
Original line number Diff line number Diff line
@@ -131,7 +131,7 @@ int main(int ac, char **argv) 
	signal(SIGTERM, int_exit);



	/* start 'ping' in the background to have some kfree_skb events */

	f = popen("ping -c5 localhost", "r");

	f = popen("ping -4 -c5 localhost", "r");

	(void) f;



	/* start 'dd' in the background to have plenty of 'write' syscalls */

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