cvs commit: src/sys/netinet ip_output.c

[Bruce M Simpson]

bms         2007-03-08 13:19:03 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/netinet          ip_output.c 
  Log:
  MFC rev 1.270:
    Fix undirected broadcast sends for the case where SO_DONTROUTE has also
    been set at the socket layer, in our somewhat convoluted IPv4 source
    selection logic in ip_output().
  
    IP_ONESBCAST is actually a special case of SO_DONTROUTE, as 255.255.255.255
    must always be delivered on a local link with a TTL of 1.
  
    If IP_ONESBCAST has been set at the socket layer, also perform destination
    interface lookup for point-to-point interfaces based on the destination
    address of the link; previously it was not possible to use the option with
    such interfaces; also, the destination/broadcast address fields map to the
    same field within struct ifnet, which doesn't help matters.
  
  Reviewed by:    andre
  
  Revision    Changes    Path
  1.242.2.18  +14 -11    src/sys/netinet/ip_output.c