r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_EXP_NEW(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000080)={0x2c, 0x0, 0x2, 0x801, 0x0, 0x0, {}, [@CTA_EXPECT_NAT={0x8, 0xa, 0x0, 0x1, [@CTA_EXPECT_NAT_TUPLE={0x4}]}, @CTA_EXPECT_FN={0x8, 0xb, 'sip\x00'}, @CTA_EXPECT_FLAGS={0x8}]}, 0x2c}}, 0x0)