// $Id: SOCK_Netlink.cpp 96985 2013-04-11 15:50:32Z huangh $

#include /* */  "ace/SOCK_Netlink.h"

#ifdef ACE_HAS_NETLINK

#include "ace/Log_Category.h"
#include "ace/ACE.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_NS_unistd.h"
#include "ace/SOCK_Netlink.h"
#include "ace/OS_NS_sys_socket.h"

#if !defined (__ACE_INLINE__)
#include "ace/SOCK_Netlink.inl"
#endif /* __ACE_INLINE__ */

ACE_BEGIN_VERSIONED_NAMESPACE_DECL

ACE_ALLOC_HOOK_DEFINE (ACE_SOCK_Netlink)

int ACE_SOCK_Netlink::open (ACE_Netlink_Addr &local,
                            int protocol_family,
                            int protocol) //! protocol of your choosing
{
  ACE_TRACE ("ACE_SOCK_Netlink::open");

  if ( ACE_SOCK::open (SOCK_RAW,
                       protocol_family, //! RAW or DGRAM valid
                       protocol,0) < 0 ) {
    ACE_TRACE ("ACE_SOCK_Netlink::open failed to open");
    return -1;
  }

  if (ACE_OS::bind(this->get_handle(),
                   (sockaddr*)local.get_addr(),
                   local.get_addr_size())  == -1 ) {
    ACE_TRACE ("ACE_SOCK_Netlink::open failed to bind socket");
    return -1;
  }
  return 0;
}


ACE_SOCK_Netlink::ACE_SOCK_Netlink (ACE_Netlink_Addr &local,
                                    int protocol_family,
                                    int protocol)
{
  ACE_TRACE ("ACE_SOCK_Netlink::ACE_SOCK_Netlink");

  if (this->open (local,
                  protocol_family,
                  protocol)  == -1)
    ACELIB_ERROR ((LM_ERROR,
                ACE_TEXT ("%p\n"),
                ACE_TEXT ("ACE_SOCK_Netlink")));
}

ssize_t
ACE_SOCK_Netlink::send (const iovec iov[],
                        int n,
                        const ACE_Addr &addr,
                        int flags) const
{
  ACE_TRACE ("ACE_SOCK_Netlink::send");
  msghdr send_msg;

  send_msg.msg_iov = (iovec *) iov;
  send_msg.msg_iovlen = n;
  send_msg.msg_name = (char *) addr.get_addr ();
  send_msg.msg_namelen = addr.get_size ();
  send_msg.msg_control = 0;
  send_msg.msg_controllen = 0;
  send_msg.msg_flags = 0;

  return ACE_OS::sendmsg (this->get_handle (),
                          &send_msg,
                          flags);
}

ssize_t
ACE_SOCK_Netlink::recv (iovec iov[],
                        int n,
                        ACE_Addr &addr,
                        int flags) const
{
  ACE_TRACE ("ACE_SOCK_Netlink::recv");
  msghdr recv_msg;

  recv_msg.msg_iov = (iovec *) iov;
  recv_msg.msg_iovlen = n;
  recv_msg.msg_name = (char *) addr.get_addr ();
  recv_msg.msg_namelen = addr.get_size ();
  recv_msg.msg_control = 0;
  recv_msg.msg_controllen = 0;
  recv_msg.msg_flags = 0;

  ssize_t status = ACE_OS::recvmsg (this->get_handle (),
                                    &recv_msg,
                                    flags);

  if (recv_msg.msg_flags & MSG_TRUNC)
    return -1;

  addr.set_size (recv_msg.msg_namelen);
  addr.set_type (((sockaddr_in *) addr.get_addr())->sin_family);

  return status;
}

ACE_END_VERSIONED_NAMESPACE_DECL

#endif /* ACE_HAS_NETLINK */
