r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmmsg$inet(r0, &(0x7f0000002b40)=[{{0x0, 0x0, &(0x7f0000001040)=[{&(0x7f0000000000)="10", 0x1}], 0x1}}, {{&(0x7f0000001400)={0x2, 0x0, @loopback}, 0x10, &(0x7f0000001600)=[{&(0x7f0000001440)='B', 0x1}], 0x1}}], 0x2, 0x0)