• William Allen Simpson's avatar
    TCPCT part 1b: generate Responder Cookie secret · da5c78c8
    William Allen Simpson authored
    Define (missing) hash message size for SHA1.
    
    Define hashing size constants specific to TCP cookies.
    
    Add new function: tcp_cookie_generator().
    
    Maintain global secret values for tcp_cookie_generator().
    
    This is a significantly revised implementation of earlier (15-year-old)
    Photuris [RFC-2522] code for the KA9Q cooperative multitasking platform.
    
    Linux RCU technique appears to be well-suited to this application, though
    neither of the circular queue items are freed.
    
    These functions will also be used in subsequent patches that implement
    additional features.
    
    Signed-off-by: William.Allen.Simpson@gmail.com
    Acked-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    da5c78c8
tcp.h 43 KB