• Geir Ola Vaagland's avatar
    net: sctp: implement rfc6458, 8.1.31. SCTP_DEFAULT_SNDINFO support · 6b3fd5f3
    Geir Ola Vaagland authored
    This patch implements section 8.1.31. of RFC6458, which adds support
    for setting/retrieving SCTP_DEFAULT_SNDINFO:
    
      Applications that wish to use the sendto() system call may wish
      to specify a default set of parameters that would normally be
      supplied through the inclusion of ancillary data. This socket
      option allows such an application to set the default sctp_sndinfo
      structure. The application that wishes to use this socket option
      simply passes the sctp_sndinfo structure (defined in Section 5.3.4)
      to this call. The input parameters accepted by this call include
      snd_sid, snd_flags, snd_ppid, and snd_context. The snd_flags
      parameter is composed of a bitwise OR of SCTP_UNORDERED, SCTP_EOF,
      and SCTP_SENDALL. The snd_assoc_id field specifies the association
      to which to apply the parameters. For a one-to-many style socket,
      any of the predefined constants are also allowed in this field.
      The field is ignored for one-to-one style sockets.
    
    Joint work with Daniel Borkmann.
    Signed-off-by: default avatarGeir Ola Vaagland <geirola@gmail.com>
    Signed-off-by: default avatarDaniel Borkmann <dborkman@redhat.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    6b3fd5f3
socket.c 207 KB