socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
r2 = getpid()
sendmsg$unix(r1, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x0, &(0x7f00000003c0)=[@cred={{0x1c, 0x1, 0x2, {r2}}}], 0x20}, 0x0)
recvmmsg(r0, &(0x7f0000001680)=[{{&(0x7f00000000c0)=@pppoe={0x18, 0x0, {0x0, @dev}}, 0x80, 0x0}}], 0x1, 0x2, 0x0)