r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_EXP_NEW(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000040)={0x30, 0x0, 0x2, 0x5, 0x0, 0x0, {}, [@CTA_EXPECT_TUPLE={0x4}, @CTA_EXPECT_MASK={0x4}, @CTA_EXPECT_FN={0x13, 0xb, 'callforwarding\x00'}]}, 0x30}}, 0x0)