Esempi in C++ (Cpp) per get_ip_src

Esempio n. 1

File: ebt_among.c Progetto: tidatida/lagopus

static bool
ebt_among_mt(const struct sk_buff *skb, struct xt_action_param *par) {
  const struct ebt_among_info *info = par->matchinfo;
  const char *dmac, *smac;
  const struct ebt_mac_wormhash *wh_dst, *wh_src;
  __be32 dip = 0, sip = 0;

  wh_dst = ebt_among_wh_dst(info);
  wh_src = ebt_among_wh_src(info);

  if (wh_src) {
    smac = eth_hdr(skb)->h_source;
    if (get_ip_src(skb, &sip)) {
      return false;
    }
    if (!(info->bitmask & EBT_AMONG_SRC_NEG)) {
      /* we match only if it contains */
      if (!ebt_mac_wormhash_contains(wh_src, smac, sip)) {
        return false;
      }
    } else {
      /* we match only if it DOES NOT contain */
      if (ebt_mac_wormhash_contains(wh_src, smac, sip)) {
        return false;
      }
    }
  }

  if (wh_dst) {
    dmac = eth_hdr(skb)->h_dest;
    if (get_ip_dst(skb, &dip)) {
      return false;
    }
    if (!(info->bitmask & EBT_AMONG_DST_NEG)) {
      /* we match only if it contains */
      if (!ebt_mac_wormhash_contains(wh_dst, dmac, dip)) {
        return false;
      }
    } else {
      /* we match only if it DOES NOT contain */
      if (ebt_mac_wormhash_contains(wh_dst, dmac, dip)) {
        return false;
      }
    }
  }

  return true;
}

Esempio n. 2

File: ebt_among.c Progetto: LouZiffer/m900_kernel_cupcake-SDX

static int ebt_filter_among(const struct sk_buff *skb,
			    const struct net_device *in,
			    const struct net_device *out, const void *data,
			    unsigned int datalen)
{
	const struct ebt_among_info *info = data;
	const char *dmac, *smac;
	const struct ebt_mac_wormhash *wh_dst, *wh_src;
	__be32 dip = 0, sip = 0;

	wh_dst = ebt_among_wh_dst(info);
	wh_src = ebt_among_wh_src(info);

	if (wh_src) {
		smac = eth_hdr(skb)->h_source;
		if (get_ip_src(skb, &sip))
			return EBT_NOMATCH;
		if (!(info->bitmask & EBT_AMONG_SRC_NEG)) {
			/* we match only if it contains */
			if (!ebt_mac_wormhash_contains(wh_src, smac, sip))
				return EBT_NOMATCH;
		} else {
			/* we match only if it DOES NOT contain */
			if (ebt_mac_wormhash_contains(wh_src, smac, sip))
				return EBT_NOMATCH;
		}
	}

	if (wh_dst) {
		dmac = eth_hdr(skb)->h_dest;
		if (get_ip_dst(skb, &dip))
			return EBT_NOMATCH;
		if (!(info->bitmask & EBT_AMONG_DST_NEG)) {
			/* we match only if it contains */
			if (!ebt_mac_wormhash_contains(wh_dst, dmac, dip))
				return EBT_NOMATCH;
		} else {
			/* we match only if it DOES NOT contain */
			if (ebt_mac_wormhash_contains(wh_dst, dmac, dip))
				return EBT_NOMATCH;
		}
	}

	return EBT_MATCH;
}