r0 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_MD5SIG(r0, 0x6, 0x25, &(0x7f0000001100)={@in={{0x2, 0x0, @loopback}}, 0x0, 0x0, 0x0, 0x0, "dcba2fba2255df97459276d2b82378a898078f1f66d1cdb37d2a91c6b0b99ac45ae403fd3e5c1b4799ddafda644f7be998df2be69b01a7e102d8df49feabd86c731fd520e40caf234dd3892581f1cb42"}, 0xd7)