@@ -48,6 +48,7 @@
#include <string.h>
#include <sys/mman.h>
#include <sys/socket.h>
+#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
@@ -59,6 +60,33 @@
static uint32_t cfg_max_num_members;
+static void loopback_set_up_down(int state_up)
+{
+ struct ifreq ifreq = {};
+ int fd, err;
+
+ fd = socket(AF_PACKET, SOCK_RAW, 0);
+ if (fd < 0) {
+ perror("socket loopback");
+ exit(1);
+ }
+ strcpy(ifreq.ifr_name, "lo");
+ err = ioctl(fd, SIOCGIFFLAGS, &ifreq);
+ if (err) {
+ perror("SIOCGIFFLAGS");
+ exit(1);
+ }
+ if (state_up != !!(ifreq.ifr_flags & IFF_UP)) {
+ ifreq.ifr_flags ^= IFF_UP;
+ err = ioctl(fd, SIOCSIFFLAGS, &ifreq);
+ if (err) {
+ perror("SIOCSIFFLAGS");
+ exit(1);
+ }
+ }
+ close(fd);
+}
+
/* Open a socket in a given fanout mode.
* @return -1 if mode is bad, a valid socket otherwise */
static int sock_fanout_open(uint16_t typeflags, uint16_t group_id)
@@ -264,17 +292,22 @@ static void test_control_single(void)
}
/* Test illegal group with different modes or flags */
-static void test_control_group(void)
+static void test_control_group(int toggle)
{
int fds[2];
- fprintf(stderr, "test: control multiple sockets\n");
+ if (toggle)
+ fprintf(stderr, "test: control multiple sockets with link down toggle\n");
+ else
+ fprintf(stderr, "test: control multiple sockets\n");
fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 0);
if (fds[0] == -1) {
fprintf(stderr, "ERROR: failed to open HASH socket\n");
exit(1);
}
+ if (toggle)
+ loopback_set_up_down(0);
if (sock_fanout_open(PACKET_FANOUT_HASH |
PACKET_FANOUT_FLAG_DEFRAG, 0) != -1) {
fprintf(stderr, "ERROR: joined group with wrong flag defrag\n");
@@ -294,6 +327,8 @@ static void test_control_group(void)
fprintf(stderr, "ERROR: failed to join group\n");
exit(1);
}
+ if (toggle)
+ loopback_set_up_down(1);
if (close(fds[1]) || close(fds[0])) {
fprintf(stderr, "ERROR: closing sockets\n");
exit(1);
@@ -489,7 +524,8 @@ int main(int argc, char **argv)
int port_off = 2, tries = 20, ret;
test_control_single();
- test_control_group();
+ test_control_group(0);
+ test_control_group(1);
test_control_group_max_num_members();
test_unique_fanout_group_ids();
Modify test_control_group to have toggle parameter. When toggle is non-zero, loopback device will be set down for the initialization of fd[1] which is still expected to successfully join the fanout. Signed-off-by: Gur Stavi <gur.stavi@huawei.com> --- tools/testing/selftests/net/psock_fanout.c | 42 ++++++++++++++++++++-- 1 file changed, 39 insertions(+), 3 deletions(-)