cvs commit: src/sys/netinet udp_usrreq.c

[Bruce M Simpson]

bms         2007-03-08 15:26:54 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet          udp_usrreq.c 
  Log:
  Fix IP_SENDSRCADDR semantics.
  
   * To use this option with a UDP socket, it must be bound to a local port,
     and INADDR_ANY, to disallow possible collisions with existing udp inpcbs
     bound to the same port on other interfaces at send time.
  
   * If the socket is bound to INADDR_ANY, specifying IP_SENDSRCADDR with
     INADDR_ANY will be rejected as it is ambiguous.
  
   * If the socket is bound to an address other than INADDR_ANY, specifying
     IP_SENDSRCADDR with INADDR_ANY will be disallowed by in_pcbbind_setup().
  
  Reviewed by:    silence on -net
  Tested with:    src/tools/regression/netinet/ipbroadcast
  MFC after:      4 days
  
  Revision  Changes    Path
  1.203     +11 -4     src/sys/netinet/udp_usrreq.c