コード例 #1
0
static inline int tcf_simp_cleanup(struct tc_action *a, int bind)
{
	struct tcf_defact *d = a->priv;

	if (d)
		return tcf_simp_release(d, bind);
	return 0;
}
コード例 #2
0
static int tcf_simp_init(struct rtattr *rta, struct rtattr *est,
			 struct tc_action *a, int ovr, int bind)
{
	struct rtattr *tb[TCA_DEF_MAX];
	struct tc_defact *parm;
	struct tcf_defact *d;
	struct tcf_common *pc;
	void *defdata;
	u32 datalen = 0;
	int ret = 0;

	if (rta == NULL || rtattr_parse_nested(tb, TCA_DEF_MAX, rta) < 0)
		return -EINVAL;

	if (tb[TCA_DEF_PARMS - 1] == NULL ||
	    RTA_PAYLOAD(tb[TCA_DEF_PARMS - 1]) < sizeof(*parm))
		return -EINVAL;

	parm = RTA_DATA(tb[TCA_DEF_PARMS - 1]);
	defdata = RTA_DATA(tb[TCA_DEF_DATA - 1]);
	if (defdata == NULL)
		return -EINVAL;

	datalen = RTA_PAYLOAD(tb[TCA_DEF_DATA - 1]);
	if (datalen <= 0)
		return -EINVAL;

	pc = tcf_hash_check(parm->index, a, bind, &simp_hash_info);
	if (!pc) {
		pc = tcf_hash_create(parm->index, est, a, sizeof(*d), bind,
				     &simp_idx_gen, &simp_hash_info);
		if (unlikely(!pc))
			return -ENOMEM;

		d = to_defact(pc);
		ret = alloc_defdata(d, datalen, defdata);
		if (ret < 0) {
			kfree(pc);
			return ret;
		}
		ret = ACT_P_CREATED;
	} else {
		d = to_defact(pc);
		if (!ovr) {
			tcf_simp_release(d, bind);
			return -EEXIST;
		}
		realloc_defdata(d, datalen, defdata);
	}

	spin_lock_bh(&d->tcf_lock);
	d->tcf_action = parm->action;
	spin_unlock_bh(&d->tcf_lock);

	if (ret == ACT_P_CREATED)
		tcf_hash_insert(pc, &simp_hash_info);
	return ret;
}
コード例 #3
0
ファイル: act_simple.c プロジェクト: NKSG/INTER_MANET_NS3
static int tcf_simp_init(struct nlattr *nla, struct nlattr *est,
			 struct tc_action *a, int ovr, int bind)
{
	struct nlattr *tb[TCA_DEF_MAX + 1];
	struct tc_defact *parm;
	struct tcf_defact *d;
	struct tcf_common *pc;
	char *defdata;
	int ret = 0, err;

	if (nla == NULL)
		return -EINVAL;

	err = nla_parse_nested(tb, TCA_DEF_MAX, nla, simple_policy);
	if (err < 0)
		return err;

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

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

	parm = nla_data(tb[TCA_DEF_PARMS]);
	defdata = nla_data(tb[TCA_DEF_DATA]);

	pc = tcf_hash_check(parm->index, a, bind, &simp_hash_info);
	if (!pc) {
		pc = tcf_hash_create(parm->index, est, a, sizeof(*d), bind,
				     &simp_idx_gen, &simp_hash_info);
		if (unlikely(!pc))
			return -ENOMEM;

		d = to_defact(pc);
		ret = alloc_defdata(d, defdata);
		if (ret < 0) {
			kfree(pc);
			return ret;
		}
		d->tcf_action = parm->action;
		ret = ACT_P_CREATED;
	} else {
		d = to_defact(pc);
		if (!ovr) {
			tcf_simp_release(d, bind);
			return -EEXIST;
		}
		reset_policy(d, defdata, parm);
	}

	if (ret == ACT_P_CREATED)
		tcf_hash_insert(pc, &simp_hash_info);
	return ret;
}