Expansion of Linux Kernel API for getting from userlevel TCP ISN by socket descriptor. Would such improvement deserve merge? The use case is to differ hosts behind NAT. The general plan of changes:
1. copy ISN into the tcp_sock structure when the TCP session is created; 2. add ioctl for getting ISN; or 2. copy that value into the tcp_info structure returned by getsockopt(). I see that 'snt_isn' and 'rcv_isn' are stored in 'tcp_request_sock'. Is 'tcp_request_sock' have the lifetime of 'tcp_sock'? I.e. can it be always accessed via 'fastopen_rsk'? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
