r0 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$inet_group_source_req(r0, 0x0, 0x2e, &(0x7f0000007fc0)={0x1, {{0x2, 0x0, @multicast1}}, {{0x2, 0x0, @loopback}}}, 0x108)
setsockopt$inet_group_source_req(r0, 0x0, 0x2e, &(0x7f0000007fc0)={0x1, {{0x2, 0x0, @multicast1}}, {{0x2, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}}}}, 0x108)