target.cc

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/*
 * Copyright (c) 2013-2015 - Adjacent Link LLC, Bridgewater, New Jersey
 * Copyright (c) 2009 - DRS CenGen, LLC, Columbia, Maryland
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#include "target.h"
#include "emane/utils/netutils.h"

#include <functional>


EMANE::Models::CommEffect::Target::Target(const EthernetProtocolRules & rules): 
  rules_(rules)
{}


EMANE::Models::CommEffect::Target::Target()
{}


EMANE::Models::CommEffect::Target::~Target()
{
  std::for_each(rules_.begin(),
                rules_.end(),
                [](const Rule * p){delete p;});
}

bool
EMANE::Models::CommEffect::Target::match(const void * buf, std::size_t len) 
{ 
  // no rules, don't care
  if(rules_.empty())
    {
      return true;
    }

  // check buf len
  if(len < Utils::ETH_HEADER_LEN)
    {
      return false;
    }

  const Utils::EtherHeader * pHdr = (Utils::EtherHeader *) buf;

  const int offset = Utils::ETH_HEADER_LEN;

  return std::find_if(rules_.begin(),
                      rules_.end(),
                      std::bind(&Rule::match,
                                std::placeholders::_1,
                                static_cast<const std::uint8_t *>(buf) + offset,
                                len - offset, pHdr->u16proto)) != rules_.end();
}