C++ (Cpp) skb_pkt_type_ok 예제들

예제 #1

파일: nft_meta.c 프로젝트: AlexShiLucky/linux

static void nft_meta_set_eval(const struct nft_expr *expr,
			      struct nft_regs *regs,
			       const struct nft_pktinfo *pkt)
{
	const struct nft_meta *meta = nft_expr_priv(expr);
	struct sk_buff *skb = pkt->skb;
	u32 *sreg = &regs->data[meta->sreg];
	u32 value = *sreg;
	u8 value8;

	switch (meta->key) {
	case NFT_META_MARK:
		skb->mark = value;
		break;
	case NFT_META_PRIORITY:
		skb->priority = value;
		break;
	case NFT_META_PKTTYPE:
		value8 = nft_reg_load8(sreg);

		if (skb->pkt_type != value8 &&
		    skb_pkt_type_ok(value8) &&
		    skb_pkt_type_ok(skb->pkt_type))
			skb->pkt_type = value8;
		break;
	case NFT_META_NFTRACE:
		value8 = nft_reg_load8(sreg);

		skb->nf_trace = !!value8;
		break;
#ifdef CONFIG_NETWORK_SECMARK
	case NFT_META_SECMARK:
		skb->secmark = value;
		break;
#endif
	default:
		WARN_ON(1);
	}
}

예제 #2

파일: act_skbedit.c 프로젝트: sjp38/linux.doc_trans_membarrier

static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
			    struct nlattr *est, struct tc_action *a,
			    int ovr, int bind)
{
	struct tc_action_net *tn = net_generic(net, skbedit_net_id);
	struct nlattr *tb[TCA_SKBEDIT_MAX + 1];
	struct tc_skbedit *parm;
	struct tcf_skbedit *d;
	u32 flags = 0, *priority = NULL, *mark = NULL;
	u16 *queue_mapping = NULL, *ptype = NULL;
	bool exists = false;
	int ret = 0, err;

	if (nla == NULL)
		return -EINVAL;

	err = nla_parse_nested(tb, TCA_SKBEDIT_MAX, nla, skbedit_policy);
	if (err < 0)
		return err;

	if (tb[TCA_SKBEDIT_PARMS] == NULL)
		return -EINVAL;

	if (tb[TCA_SKBEDIT_PRIORITY] != NULL) {
		flags |= SKBEDIT_F_PRIORITY;
		priority = nla_data(tb[TCA_SKBEDIT_PRIORITY]);
	}

	if (tb[TCA_SKBEDIT_QUEUE_MAPPING] != NULL) {
		flags |= SKBEDIT_F_QUEUE_MAPPING;
		queue_mapping = nla_data(tb[TCA_SKBEDIT_QUEUE_MAPPING]);
	}

	if (tb[TCA_SKBEDIT_PTYPE] != NULL) {
		ptype = nla_data(tb[TCA_SKBEDIT_PTYPE]);
		if (!skb_pkt_type_ok(*ptype))
			return -EINVAL;
		flags |= SKBEDIT_F_PTYPE;
	}

	if (tb[TCA_SKBEDIT_MARK] != NULL) {
		flags |= SKBEDIT_F_MARK;
		mark = nla_data(tb[TCA_SKBEDIT_MARK]);
	}

	parm = nla_data(tb[TCA_SKBEDIT_PARMS]);

	exists = tcf_hash_check(tn, parm->index, a, bind);
	if (exists && bind)
		return 0;

	if (!flags) {
		tcf_hash_release(a, bind);
		return -EINVAL;
	}

	if (!exists) {
		ret = tcf_hash_create(tn, parm->index, est, a,
				      sizeof(*d), bind, false);
		if (ret)
			return ret;

		d = to_skbedit(a);
		ret = ACT_P_CREATED;
	} else {
		d = to_skbedit(a);
		tcf_hash_release(a, bind);
		if (!ovr)
			return -EEXIST;
	}

	spin_lock_bh(&d->tcf_lock);

	d->flags = flags;
	if (flags & SKBEDIT_F_PRIORITY)
		d->priority = *priority;
	if (flags & SKBEDIT_F_QUEUE_MAPPING)
		d->queue_mapping = *queue_mapping;
	if (flags & SKBEDIT_F_MARK)
		d->mark = *mark;
	if (flags & SKBEDIT_F_PTYPE)
		d->ptype = *ptype;

	d->tcf_action = parm->action;

	spin_unlock_bh(&d->tcf_lock);

	if (ret == ACT_P_CREATED)
		tcf_hash_insert(tn, a);
	return ret;
}