r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_buf(r0, 0x29, 0x20, &(0x7f0000000100)="2b6a731c0f15c4be6c49918ab5750c80d7885df2cd9034c766844fc6e73c96a3", 0x20)