Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-01 10:43:43 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

selftests: net/psock_fanout: unbound socket fanout

Browse Source 
Add a test that validates that an unbound packet socket cannot create/join
a fanout group.

Signed-off-by: Gur Stavi <gur.stavi@huawei.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/7612fa90f613100e2b64c563cab3d7fdf36010db.1728802323.git.gur.stavi@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Gur Stavi 2024-10-13 10:15:27 +03:00 committed by Jakub Kicinski
parent 9317e8933e
commit 7ec02a3aef
1 changed files with 36 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
tools/testing/selftests/net/psock_fanout.c
View File

@ -279,6 +279,41 @@ static int sock_fanout_read(int fds[], char *rings[], const int expect[])
return 0;
}
/* Test that creating/joining a fanout group fails for unbound socket without
* a specified protocol
*/
static void test_unbound_fanout(void)
{
int val, fd0, fd1, err;
fprintf(stderr, "test: unbound fanout\n");
fd0 = socket(PF_PACKET, SOCK_RAW, 0);
if (fd0 < 0) {
perror("socket packet");
exit(1);
}
/* Try to create a new fanout group. Should fail. */
val = (PACKET_FANOUT_HASH << 16) | 1;
err = setsockopt(fd0, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val));
if (!err) {
fprintf(stderr, "ERROR: unbound socket fanout create\n");
exit(1);
}
fd1 = sock_fanout_open(PACKET_FANOUT_HASH, 1);
if (fd1 == -1) {
fprintf(stderr, "ERROR: failed to open HASH socket\n");
exit(1);
}
/* Try to join an existing fanout group. Should fail. */
err = setsockopt(fd0, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val));
if (!err) {
fprintf(stderr, "ERROR: unbound socket fanout join\n");
exit(1);
}
close(fd0);
close(fd1);
}
/* Test illegal mode + flag combination */
static void test_control_single(void)
{
@ -523,6 +558,7 @@ int main(int argc, char **argv)
const int expect_uniqueid[2][2] = { { 20, 20}, { 20, 20 } };
int port_off = 2, tries = 20, ret;
test_unbound_fanout();
test_control_single();
test_control_group(0);
test_control_group(1);