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Commit 7ba699c6 authored by Patrick McHardy's avatar Patrick McHardy Committed by David S. Miller
Browse files

[NET_SCHED]: Convert actions from rtnetlink to new netlink API 



Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent add93b61

include/net/act_api.h

+4 −4
Original line number Diff line number Diff line
@@ -89,7 +89,7 @@ struct tc_action_ops { 
	int     (*dump)(struct sk_buff *, struct tc_action *, int, int);

	int     (*cleanup)(struct tc_action *, int bind);

	int     (*lookup)(struct tc_action *, u32);

	int     (*init)(struct rtattr *, struct rtattr *, struct tc_action *, int , int);

	int     (*init)(struct nlattr *, struct nlattr *, struct tc_action *, int , int);

	int     (*walk)(struct sk_buff *, struct netlink_callback *, int, struct tc_action *);

};
@@ -104,7 +104,7 @@ extern u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo); 
extern int tcf_hash_search(struct tc_action *a, u32 index);

extern struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a,

					 int bind, struct tcf_hashinfo *hinfo);

extern struct tcf_common *tcf_hash_create(u32 index, struct rtattr *est,

extern struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,

					  struct tc_action *a, int size,

					  int bind, u32 *idx_gen,

					  struct tcf_hashinfo *hinfo);
@@ -114,8 +114,8 @@ extern int tcf_register_action(struct tc_action_ops *a); 
extern int tcf_unregister_action(struct tc_action_ops *a);

extern void tcf_action_destroy(struct tc_action *a, int bind);

extern int tcf_action_exec(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res);

extern struct tc_action *tcf_action_init(struct rtattr *rta, struct rtattr *est, char *n, int ovr, int bind, int *err);

extern struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est, char *n, int ovr, int bind, int *err);

extern struct tc_action *tcf_action_init(struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind, int *err);

extern struct tc_action *tcf_action_init_1(struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind, int *err);

extern int tcf_action_dump(struct sk_buff *skb, struct tc_action *a, int, int);

extern int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);

extern int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);

net/sched/act_api.c

+109 −105
Original line number Diff line number Diff line
@@ -68,7 +68,7 @@ static int tcf_dump_walker(struct sk_buff *skb, struct netlink_callback *cb, 
{

	struct tcf_common *p;

	int err = 0, index = -1,i = 0, s_i = 0, n_i = 0;

	struct rtattr *r ;

	struct nlattr *r ;



	read_lock_bh(hinfo->lock);
@@ -83,15 +83,15 @@ static int tcf_dump_walker(struct sk_buff *skb, struct netlink_callback *cb, 
				continue;

			a->priv = p;

			a->order = n_i;

			r = (struct rtattr *)skb_tail_pointer(skb);

			RTA_PUT(skb, a->order, 0, NULL);

			r = (struct nlattr *)skb_tail_pointer(skb);

			NLA_PUT(skb, a->order, 0, NULL);

			err = tcf_action_dump_1(skb, a, 0, 0);

			if (err < 0) {

				index--;

				nlmsg_trim(skb, r);

				goto done;

			}

			r->rta_len = skb_tail_pointer(skb) - (u8 *)r;

			r->nla_len = skb_tail_pointer(skb) - (u8 *)r;

			n_i++;

			if (n_i >= TCA_ACT_MAX_PRIO)

				goto done;
@@ -103,7 +103,7 @@ done: 
		cb->args[0] += n_i;

	return n_i;



rtattr_failure:

nla_put_failure:

	nlmsg_trim(skb, r);

	goto done;

}
@@ -112,12 +112,12 @@ static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a, 
			  struct tcf_hashinfo *hinfo)

{

	struct tcf_common *p, *s_p;

	struct rtattr *r ;

	struct nlattr *r ;

	int i= 0, n_i = 0;



	r = (struct rtattr *)skb_tail_pointer(skb);

	RTA_PUT(skb, a->order, 0, NULL);

	RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind);

	r = (struct nlattr *)skb_tail_pointer(skb);

	NLA_PUT(skb, a->order, 0, NULL);

	NLA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind);

	for (i = 0; i < (hinfo->hmask + 1); i++) {

		p = hinfo->htab[tcf_hash(i, hinfo->hmask)];
@@ -129,11 +129,11 @@ static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a, 
			p = s_p;

		}

	}

	RTA_PUT(skb, TCA_FCNT, 4, &n_i);

	r->rta_len = skb_tail_pointer(skb) - (u8 *)r;

	NLA_PUT(skb, TCA_FCNT, 4, &n_i);

	r->nla_len = skb_tail_pointer(skb) - (u8 *)r;



	return n_i;

rtattr_failure:

nla_put_failure:

	nlmsg_trim(skb, r);

	return -EINVAL;

}
@@ -211,7 +211,7 @@ struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a, int bind, 
}

EXPORT_SYMBOL(tcf_hash_check);



struct tcf_common *tcf_hash_create(u32 index, struct rtattr *est, struct tc_action *a, int size, int bind, u32 *idx_gen, struct tcf_hashinfo *hinfo)

struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est, struct tc_action *a, int size, int bind, u32 *idx_gen, struct tcf_hashinfo *hinfo)

{

	struct tcf_common *p = kzalloc(size, GFP_KERNEL);
@@ -227,7 +227,7 @@ struct tcf_common *tcf_hash_create(u32 index, struct rtattr *est, struct tc_acti 
	p->tcfc_tm.lastuse = jiffies;

	if (est)

		gen_new_estimator(&p->tcfc_bstats, &p->tcfc_rate_est,

				  &p->tcfc_lock, (struct nlattr *)est);

				  &p->tcfc_lock, est);

	a->priv = (void *) p;

	return p;

}
@@ -305,15 +305,15 @@ static struct tc_action_ops *tc_lookup_action_n(char *kind) 
	return a;

}



/* lookup by rtattr */

static struct tc_action_ops *tc_lookup_action(struct rtattr *kind)

/* lookup by nlattr */

static struct tc_action_ops *tc_lookup_action(struct nlattr *kind)

{

	struct tc_action_ops *a = NULL;



	if (kind) {

		read_lock(&act_mod_lock);

		for (a = act_base; a; a = a->next) {

			if (rtattr_strcmp(kind, a->kind) == 0) {

			if (nla_strcmp(kind, a->kind) == 0) {

				if (!try_module_get(a->owner)) {

					read_unlock(&act_mod_lock);

					return NULL;
@@ -414,22 +414,22 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref) 
{

	int err = -EINVAL;

	unsigned char *b = skb_tail_pointer(skb);

	struct rtattr *r;

	struct nlattr *r;



	if (a->ops == NULL || a->ops->dump == NULL)

		return err;



	RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind);

	NLA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind);

	if (tcf_action_copy_stats(skb, a, 0))

		goto rtattr_failure;

	r = (struct rtattr *)skb_tail_pointer(skb);

	RTA_PUT(skb, TCA_OPTIONS, 0, NULL);

		goto nla_put_failure;

	r = (struct nlattr *)skb_tail_pointer(skb);

	NLA_PUT(skb, TCA_OPTIONS, 0, NULL);

	if ((err = tcf_action_dump_old(skb, a, bind, ref)) > 0) {

		r->rta_len = skb_tail_pointer(skb) - (u8 *)r;

		r->nla_len = skb_tail_pointer(skb) - (u8 *)r;

		return err;

	}



rtattr_failure:

nla_put_failure:

	nlmsg_trim(skb, b);

	return -1;

}
@@ -441,45 +441,45 @@ tcf_action_dump(struct sk_buff *skb, struct tc_action *act, int bind, int ref) 
	struct tc_action *a;

	int err = -EINVAL;

	unsigned char *b = skb_tail_pointer(skb);

	struct rtattr *r ;

	struct nlattr *r ;



	while ((a = act) != NULL) {

		r = (struct rtattr *)skb_tail_pointer(skb);

		r = (struct nlattr *)skb_tail_pointer(skb);

		act = a->next;

		RTA_PUT(skb, a->order, 0, NULL);

		NLA_PUT(skb, a->order, 0, NULL);

		err = tcf_action_dump_1(skb, a, bind, ref);

		if (err < 0)

			goto errout;

		r->rta_len = skb_tail_pointer(skb) - (u8 *)r;

		r->nla_len = skb_tail_pointer(skb) - (u8 *)r;

	}



	return 0;



rtattr_failure:

nla_put_failure:

	err = -EINVAL;

errout:

	nlmsg_trim(skb, b);

	return err;

}



struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est,

struct tc_action *tcf_action_init_1(struct nlattr *nla, struct nlattr *est,

				    char *name, int ovr, int bind, int *err)

{

	struct tc_action *a;

	struct tc_action_ops *a_o;

	char act_name[IFNAMSIZ];

	struct rtattr *tb[TCA_ACT_MAX+1];

	struct rtattr *kind;

	struct nlattr *tb[TCA_ACT_MAX+1];

	struct nlattr *kind;



	*err = -EINVAL;



	if (name == NULL) {

		if (rtattr_parse_nested(tb, TCA_ACT_MAX, rta) < 0)

		if (nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL) < 0)

			goto err_out;

		kind = tb[TCA_ACT_KIND-1];

		kind = tb[TCA_ACT_KIND];

		if (kind == NULL)

			goto err_out;

		if (rtattr_strlcpy(act_name, kind, IFNAMSIZ) >= IFNAMSIZ)

		if (nla_strlcpy(act_name, kind, IFNAMSIZ) >= IFNAMSIZ)

			goto err_out;

	} else {

		if (strlcpy(act_name, name, IFNAMSIZ) >= IFNAMSIZ)
@@ -517,9 +517,9 @@ struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est, 


	/* backward compatibility for policer */

	if (name == NULL)

		*err = a_o->init(tb[TCA_ACT_OPTIONS-1], est, a, ovr, bind);

		*err = a_o->init(tb[TCA_ACT_OPTIONS], est, a, ovr, bind);

	else

		*err = a_o->init(rta, est, a, ovr, bind);

		*err = a_o->init(nla, est, a, ovr, bind);

	if (*err < 0)

		goto err_free;
@@ -542,23 +542,23 @@ err_out: 
	return NULL;

}



struct tc_action *tcf_action_init(struct rtattr *rta, struct rtattr *est,

struct tc_action *tcf_action_init(struct nlattr *nla, struct nlattr *est,

				  char *name, int ovr, int bind, int *err)

{

	struct rtattr *tb[TCA_ACT_MAX_PRIO+1];

	struct nlattr *tb[TCA_ACT_MAX_PRIO+1];

	struct tc_action *head = NULL, *act, *act_prev = NULL;

	int i;



	if (rtattr_parse_nested(tb, TCA_ACT_MAX_PRIO, rta) < 0) {

	if (nla_parse_nested(tb, TCA_ACT_MAX_PRIO, nla, NULL) < 0) {

		*err = -EINVAL;

		return head;

	}



	for (i=0; i < TCA_ACT_MAX_PRIO && tb[i]; i++) {

	for (i = 1; i <= TCA_ACT_MAX_PRIO && tb[i]; i++) {

		act = tcf_action_init_1(tb[i], est, name, ovr, bind, err);

		if (act == NULL)

			goto err;

		act->order = i+1;

		act->order = i;



		if (head == NULL)

			head = act;
@@ -625,7 +625,7 @@ tca_get_fill(struct sk_buff *skb, struct tc_action *a, u32 pid, u32 seq, 
	struct tcamsg *t;

	struct nlmsghdr *nlh;

	unsigned char *b = skb_tail_pointer(skb);

	struct rtattr *x;

	struct nlattr *x;



	nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags);
@@ -634,18 +634,18 @@ tca_get_fill(struct sk_buff *skb, struct tc_action *a, u32 pid, u32 seq, 
	t->tca__pad1 = 0;

	t->tca__pad2 = 0;



	x = (struct rtattr *)skb_tail_pointer(skb);

	RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);

	x = (struct nlattr *)skb_tail_pointer(skb);

	NLA_PUT(skb, TCA_ACT_TAB, 0, NULL);



	if (tcf_action_dump(skb, a, bind, ref) < 0)

		goto rtattr_failure;

		goto nla_put_failure;



	x->rta_len = skb_tail_pointer(skb) - (u8 *)x;

	x->nla_len = skb_tail_pointer(skb) - (u8 *)x;



	nlh->nlmsg_len = skb_tail_pointer(skb) - b;

	return skb->len;



rtattr_failure:

nla_put_failure:

nlmsg_failure:

	nlmsg_trim(skb, b);

	return -1;
@@ -668,20 +668,20 @@ act_get_notify(u32 pid, struct nlmsghdr *n, struct tc_action *a, int event) 
}



static struct tc_action *

tcf_action_get_1(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int *err)

tcf_action_get_1(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int *err)

{

	struct rtattr *tb[TCA_ACT_MAX+1];

	struct nlattr *tb[TCA_ACT_MAX+1];

	struct tc_action *a;

	int index;



	*err = -EINVAL;

	if (rtattr_parse_nested(tb, TCA_ACT_MAX, rta) < 0)

	if (nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL) < 0)

		return NULL;



	if (tb[TCA_ACT_INDEX - 1] == NULL ||

	    RTA_PAYLOAD(tb[TCA_ACT_INDEX - 1]) < sizeof(index))

	if (tb[TCA_ACT_INDEX] == NULL ||

	    nla_len(tb[TCA_ACT_INDEX]) < sizeof(index))

		return NULL;

	index = *(int *)RTA_DATA(tb[TCA_ACT_INDEX - 1]);

	index = *(int *)nla_data(tb[TCA_ACT_INDEX]);



	*err = -ENOMEM;

	a = kzalloc(sizeof(struct tc_action), GFP_KERNEL);
@@ -689,7 +689,7 @@ tcf_action_get_1(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int *err) 
		return NULL;



	*err = -EINVAL;

	a->ops = tc_lookup_action(tb[TCA_ACT_KIND - 1]);

	a->ops = tc_lookup_action(tb[TCA_ACT_KIND]);

	if (a->ops == NULL)

		goto err_free;

	if (a->ops->lookup == NULL)
@@ -731,16 +731,16 @@ static struct tc_action *create_a(int i) 
	return act;

}



static int tca_action_flush(struct rtattr *rta, struct nlmsghdr *n, u32 pid)

static int tca_action_flush(struct nlattr *nla, struct nlmsghdr *n, u32 pid)

{

	struct sk_buff *skb;

	unsigned char *b;

	struct nlmsghdr *nlh;

	struct tcamsg *t;

	struct netlink_callback dcb;

	struct rtattr *x;

	struct rtattr *tb[TCA_ACT_MAX+1];

	struct rtattr *kind;

	struct nlattr *x;

	struct nlattr *tb[TCA_ACT_MAX+1];

	struct nlattr *kind;

	struct tc_action *a = create_a(0);

	int err = -EINVAL;
@@ -758,10 +758,10 @@ static int tca_action_flush(struct rtattr *rta, struct nlmsghdr *n, u32 pid) 


	b = skb_tail_pointer(skb);



	if (rtattr_parse_nested(tb, TCA_ACT_MAX, rta) < 0)

	if (nla_parse_nested(tb, TCA_ACT_MAX, nla, NULL) < 0)

		goto err_out;



	kind = tb[TCA_ACT_KIND-1];

	kind = tb[TCA_ACT_KIND];

	a->ops = tc_lookup_action(kind);

	if (a->ops == NULL)

		goto err_out;
@@ -772,14 +772,14 @@ static int tca_action_flush(struct rtattr *rta, struct nlmsghdr *n, u32 pid) 
	t->tca__pad1 = 0;

	t->tca__pad2 = 0;



	x = (struct rtattr *)skb_tail_pointer(skb);

	RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);

	x = (struct nlattr *)skb_tail_pointer(skb);

	NLA_PUT(skb, TCA_ACT_TAB, 0, NULL);



	err = a->ops->walk(skb, &dcb, RTM_DELACTION, a);

	if (err < 0)

		goto rtattr_failure;

		goto nla_put_failure;



	x->rta_len = skb_tail_pointer(skb) - (u8 *)x;

	x->nla_len = skb_tail_pointer(skb) - (u8 *)x;



	nlh->nlmsg_len = skb_tail_pointer(skb) - b;

	nlh->nlmsg_flags |= NLM_F_ROOT;
@@ -791,7 +791,7 @@ static int tca_action_flush(struct rtattr *rta, struct nlmsghdr *n, u32 pid) 


	return err;



rtattr_failure:

nla_put_failure:

nlmsg_failure:

	module_put(a->ops->owner);

err_out:
@@ -801,13 +801,13 @@ err_out: 
}



static int

tca_action_gd(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int event)

tca_action_gd(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int event)

{

	int i, ret = 0;

	struct rtattr *tb[TCA_ACT_MAX_PRIO+1];

	struct nlattr *tb[TCA_ACT_MAX_PRIO+1];

	struct tc_action *head = NULL, *act, *act_prev = NULL;



	if (rtattr_parse_nested(tb, TCA_ACT_MAX_PRIO, rta) < 0)

	if (nla_parse_nested(tb, TCA_ACT_MAX_PRIO, nla, NULL) < 0)

		return -EINVAL;



	if (event == RTM_DELACTION && n->nlmsg_flags&NLM_F_ROOT) {
@@ -815,11 +815,11 @@ tca_action_gd(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int event) 
			return tca_action_flush(tb[0], n, pid);

	}



	for (i=0; i < TCA_ACT_MAX_PRIO && tb[i]; i++) {

	for (i = 1; i <= TCA_ACT_MAX_PRIO && tb[i]; i++) {

		act = tcf_action_get_1(tb[i], n, pid, &ret);

		if (act == NULL)

			goto err;

		act->order = i+1;

		act->order = i;



		if (head == NULL)

			head = act;
@@ -865,7 +865,7 @@ static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event, 
	struct tcamsg *t;

	struct nlmsghdr *nlh;

	struct sk_buff *skb;

	struct rtattr *x;

	struct nlattr *x;

	unsigned char *b;

	int err = 0;
@@ -881,13 +881,13 @@ static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event, 
	t->tca__pad1 = 0;

	t->tca__pad2 = 0;



	x = (struct rtattr *)skb_tail_pointer(skb);

	RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);

	x = (struct nlattr *)skb_tail_pointer(skb);

	NLA_PUT(skb, TCA_ACT_TAB, 0, NULL);



	if (tcf_action_dump(skb, a, 0, 0) < 0)

		goto rtattr_failure;

		goto nla_put_failure;



	x->rta_len = skb_tail_pointer(skb) - (u8 *)x;

	x->nla_len = skb_tail_pointer(skb) - (u8 *)x;



	nlh->nlmsg_len = skb_tail_pointer(skb) - b;

	NETLINK_CB(skb).dst_group = RTNLGRP_TC;
@@ -897,7 +897,7 @@ static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event, 
		err = 0;

	return err;



rtattr_failure:

nla_put_failure:

nlmsg_failure:

	kfree_skb(skb);

	return -1;
@@ -905,14 +905,14 @@ nlmsg_failure: 




static int

tcf_action_add(struct rtattr *rta, struct nlmsghdr *n, u32 pid, int ovr)

tcf_action_add(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int ovr)

{

	int ret = 0;

	struct tc_action *act;

	struct tc_action *a;

	u32 seq = n->nlmsg_seq;



	act = tcf_action_init(rta, NULL, NULL, ovr, 0, &ret);

	act = tcf_action_init(nla, NULL, NULL, ovr, 0, &ret);

	if (act == NULL)

		goto done;
@@ -931,14 +931,18 @@ done: 
static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n, void *arg)

{

	struct net *net = skb->sk->sk_net;

	struct rtattr **tca = arg;

	struct nlattr *tca[TCA_ACT_MAX + 1];

	u32 pid = skb ? NETLINK_CB(skb).pid : 0;

	int ret = 0, ovr = 0;



	if (net != &init_net)

		return -EINVAL;



	if (tca[TCA_ACT_TAB-1] == NULL) {

	ret = nlmsg_parse(n, sizeof(struct tcamsg), tca, TCA_ACT_MAX, NULL);

	if (ret < 0)

		return ret;



	if (tca[TCA_ACT_TAB] == NULL) {

		printk("tc_ctl_action: received NO action attribs\n");

		return -EINVAL;

	}
@@ -956,15 +960,15 @@ static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n, void *arg) 
		if (n->nlmsg_flags&NLM_F_REPLACE)

			ovr = 1;

replay:

		ret = tcf_action_add(tca[TCA_ACT_TAB-1], n, pid, ovr);

		ret = tcf_action_add(tca[TCA_ACT_TAB], n, pid, ovr);

		if (ret == -EAGAIN)

			goto replay;

		break;

	case RTM_DELACTION:

		ret = tca_action_gd(tca[TCA_ACT_TAB-1], n, pid, RTM_DELACTION);

		ret = tca_action_gd(tca[TCA_ACT_TAB], n, pid, RTM_DELACTION);

		break;

	case RTM_GETACTION:

		ret = tca_action_gd(tca[TCA_ACT_TAB-1], n, pid, RTM_GETACTION);

		ret = tca_action_gd(tca[TCA_ACT_TAB], n, pid, RTM_GETACTION);

		break;

	default:

		BUG();
@@ -973,33 +977,33 @@ replay: 
	return ret;

}



static struct rtattr *

static struct nlattr *

find_dump_kind(struct nlmsghdr *n)

{

	struct rtattr *tb1, *tb2[TCA_ACT_MAX+1];

	struct rtattr *tb[TCA_ACT_MAX_PRIO + 1];

	struct rtattr *rta[TCAA_MAX + 1];

	struct rtattr *kind;

	struct nlattr *tb1, *tb2[TCA_ACT_MAX+1];

	struct nlattr *tb[TCA_ACT_MAX_PRIO + 1];

	struct nlattr *nla[TCAA_MAX + 1];

	struct nlattr *kind;

	int min_len = NLMSG_LENGTH(sizeof(struct tcamsg));

	int attrlen = n->nlmsg_len - NLMSG_ALIGN(min_len);

	struct rtattr *attr = (void *) n + NLMSG_ALIGN(min_len);

	struct nlattr *attr = (void *) n + NLMSG_ALIGN(min_len);



	if (rtattr_parse(rta, TCAA_MAX, attr, attrlen) < 0)

	if (nla_parse(nla, TCAA_MAX, attr, attrlen, NULL) < 0)

		return NULL;

	tb1 = rta[TCA_ACT_TAB - 1];

	tb1 = nla[TCA_ACT_TAB];

	if (tb1 == NULL)

		return NULL;



	if (rtattr_parse(tb, TCA_ACT_MAX_PRIO, RTA_DATA(tb1),

			 NLMSG_ALIGN(RTA_PAYLOAD(tb1))) < 0)

	if (nla_parse(tb, TCA_ACT_MAX_PRIO, nla_data(tb1),

		      NLMSG_ALIGN(nla_len(tb1)), NULL) < 0)

		return NULL;

	if (tb[0] == NULL)

		return NULL;



	if (rtattr_parse(tb2, TCA_ACT_MAX, RTA_DATA(tb[0]),

			 RTA_PAYLOAD(tb[0])) < 0)

	if (nla_parse(tb2, TCA_ACT_MAX, nla_data(tb[0]),

		      nla_len(tb[0]), NULL) < 0)

		return NULL;

	kind = tb2[TCA_ACT_KIND-1];

	kind = tb2[TCA_ACT_KIND];



	return kind;

}
@@ -1010,12 +1014,12 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) 
	struct net *net = skb->sk->sk_net;

	struct nlmsghdr *nlh;

	unsigned char *b = skb_tail_pointer(skb);

	struct rtattr *x;

	struct nlattr *x;

	struct tc_action_ops *a_o;

	struct tc_action a;

	int ret = 0;

	struct tcamsg *t = (struct tcamsg *) NLMSG_DATA(cb->nlh);

	struct rtattr *kind = find_dump_kind(cb->nlh);

	struct nlattr *kind = find_dump_kind(cb->nlh);



	if (net != &init_net)

		return 0;
@@ -1035,7 +1039,7 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) 


	if (a_o->walk == NULL) {

		printk("tc_dump_action: %s !capable of dumping table\n", a_o->kind);

		goto rtattr_failure;

		goto nla_put_failure;

	}



	nlh = NLMSG_PUT(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq,
@@ -1045,15 +1049,15 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) 
	t->tca__pad1 = 0;

	t->tca__pad2 = 0;



	x = (struct rtattr *)skb_tail_pointer(skb);

	RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);

	x = (struct nlattr *)skb_tail_pointer(skb);

	NLA_PUT(skb, TCA_ACT_TAB, 0, NULL);



	ret = a_o->walk(skb, cb, RTM_GETACTION, &a);

	if (ret < 0)

		goto rtattr_failure;

		goto nla_put_failure;



	if (ret > 0) {

		x->rta_len = skb_tail_pointer(skb) - (u8 *)x;

		x->nla_len = skb_tail_pointer(skb) - (u8 *)x;

		ret = skb->len;

	} else

		nlmsg_trim(skb, x);
@@ -1064,7 +1068,7 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb) 
	module_put(a_o->owner);

	return skb->len;



rtattr_failure:

nla_put_failure:

nlmsg_failure:

	module_put(a_o->owner);

	nlmsg_trim(skb, b);

net/sched/act_gact.c

+14 −14
Original line number Diff line number Diff line
@@ -53,26 +53,26 @@ typedef int (*g_rand)(struct tcf_gact *gact); 
static g_rand gact_rand[MAX_RAND]= { NULL, gact_net_rand, gact_determ };

#endif /* CONFIG_GACT_PROB */



static int tcf_gact_init(struct rtattr *rta, struct rtattr *est,

static int tcf_gact_init(struct nlattr *nla, struct nlattr *est,

			 struct tc_action *a, int ovr, int bind)

{

	struct rtattr *tb[TCA_GACT_MAX];

	struct nlattr *tb[TCA_GACT_MAX + 1];

	struct tc_gact *parm;

	struct tcf_gact *gact;

	struct tcf_common *pc;

	int ret = 0;



	if (rta == NULL || rtattr_parse_nested(tb, TCA_GACT_MAX, rta) < 0)

	if (nla == NULL || nla_parse_nested(tb, TCA_GACT_MAX, nla, NULL) < 0)

		return -EINVAL;



	if (tb[TCA_GACT_PARMS - 1] == NULL ||

	    RTA_PAYLOAD(tb[TCA_GACT_PARMS - 1]) < sizeof(*parm))

	if (tb[TCA_GACT_PARMS] == NULL ||

	    nla_len(tb[TCA_GACT_PARMS]) < sizeof(*parm))

		return -EINVAL;

	parm = RTA_DATA(tb[TCA_GACT_PARMS - 1]);

	parm = nla_data(tb[TCA_GACT_PARMS]);



	if (tb[TCA_GACT_PROB-1] != NULL)

	if (tb[TCA_GACT_PROB] != NULL)

#ifdef CONFIG_GACT_PROB

		if (RTA_PAYLOAD(tb[TCA_GACT_PROB-1]) < sizeof(struct tc_gact_p))

		if (nla_len(tb[TCA_GACT_PROB]) < sizeof(struct tc_gact_p))

			return -EINVAL;

#else

		return -EOPNOTSUPP;
@@ -97,8 +97,8 @@ static int tcf_gact_init(struct rtattr *rta, struct rtattr *est, 
	spin_lock_bh(&gact->tcf_lock);

	gact->tcf_action = parm->action;

#ifdef CONFIG_GACT_PROB

	if (tb[TCA_GACT_PROB-1] != NULL) {

		struct tc_gact_p *p_parm = RTA_DATA(tb[TCA_GACT_PROB-1]);

	if (tb[TCA_GACT_PROB] != NULL) {

		struct tc_gact_p *p_parm = nla_data(tb[TCA_GACT_PROB]);

		gact->tcfg_paction = p_parm->paction;

		gact->tcfg_pval    = p_parm->pval;

		gact->tcfg_ptype   = p_parm->ptype;
@@ -154,23 +154,23 @@ static int tcf_gact_dump(struct sk_buff *skb, struct tc_action *a, int bind, int 
	opt.refcnt = gact->tcf_refcnt - ref;

	opt.bindcnt = gact->tcf_bindcnt - bind;

	opt.action = gact->tcf_action;

	RTA_PUT(skb, TCA_GACT_PARMS, sizeof(opt), &opt);

	NLA_PUT(skb, TCA_GACT_PARMS, sizeof(opt), &opt);

#ifdef CONFIG_GACT_PROB

	if (gact->tcfg_ptype) {

		struct tc_gact_p p_opt;

		p_opt.paction = gact->tcfg_paction;

		p_opt.pval = gact->tcfg_pval;

		p_opt.ptype = gact->tcfg_ptype;

		RTA_PUT(skb, TCA_GACT_PROB, sizeof(p_opt), &p_opt);

		NLA_PUT(skb, TCA_GACT_PROB, sizeof(p_opt), &p_opt);

	}

#endif

	t.install = jiffies_to_clock_t(jiffies - gact->tcf_tm.install);

	t.lastuse = jiffies_to_clock_t(jiffies - gact->tcf_tm.lastuse);

	t.expires = jiffies_to_clock_t(gact->tcf_tm.expires);

	RTA_PUT(skb, TCA_GACT_TM, sizeof(t), &t);

	NLA_PUT(skb, TCA_GACT_TM, sizeof(t), &t);

	return skb->len;



rtattr_failure:

nla_put_failure:

	nlmsg_trim(skb, b);

	return -1;

}

net/sched/act_ipt.c

+23 −23
Original line number Diff line number Diff line
@@ -92,10 +92,10 @@ static int tcf_ipt_release(struct tcf_ipt *ipt, int bind) 
	return ret;

}



static int tcf_ipt_init(struct rtattr *rta, struct rtattr *est,

static int tcf_ipt_init(struct nlattr *nla, struct nlattr *est,

			struct tc_action *a, int ovr, int bind)

{

	struct rtattr *tb[TCA_IPT_MAX];

	struct nlattr *tb[TCA_IPT_MAX + 1];

	struct tcf_ipt *ipt;

	struct tcf_common *pc;

	struct ipt_entry_target *td, *t;
@@ -104,22 +104,22 @@ static int tcf_ipt_init(struct rtattr *rta, struct rtattr *est, 
	u32 hook = 0;

	u32 index = 0;



	if (rta == NULL || rtattr_parse_nested(tb, TCA_IPT_MAX, rta) < 0)

	if (nla == NULL || nla_parse_nested(tb, TCA_IPT_MAX, nla, NULL) < 0)

		return -EINVAL;



	if (tb[TCA_IPT_HOOK-1] == NULL ||

	    RTA_PAYLOAD(tb[TCA_IPT_HOOK-1]) < sizeof(u32))

	if (tb[TCA_IPT_HOOK] == NULL ||

	    nla_len(tb[TCA_IPT_HOOK]) < sizeof(u32))

		return -EINVAL;

	if (tb[TCA_IPT_TARG-1] == NULL ||

	    RTA_PAYLOAD(tb[TCA_IPT_TARG-1]) < sizeof(*t))

	if (tb[TCA_IPT_TARG] == NULL ||

	    nla_len(tb[TCA_IPT_TARG]) < sizeof(*t))

		return -EINVAL;

	td = (struct ipt_entry_target *)RTA_DATA(tb[TCA_IPT_TARG-1]);

	if (RTA_PAYLOAD(tb[TCA_IPT_TARG-1]) < td->u.target_size)

	td = (struct ipt_entry_target *)nla_data(tb[TCA_IPT_TARG]);

	if (nla_len(tb[TCA_IPT_TARG]) < td->u.target_size)

		return -EINVAL;



	if (tb[TCA_IPT_INDEX-1] != NULL &&

	    RTA_PAYLOAD(tb[TCA_IPT_INDEX-1]) >= sizeof(u32))

		index = *(u32 *)RTA_DATA(tb[TCA_IPT_INDEX-1]);

	if (tb[TCA_IPT_INDEX] != NULL &&

	    nla_len(tb[TCA_IPT_INDEX]) >= sizeof(u32))

		index = *(u32 *)nla_data(tb[TCA_IPT_INDEX]);



	pc = tcf_hash_check(index, a, bind, &ipt_hash_info);

	if (!pc) {
@@ -136,14 +136,14 @@ static int tcf_ipt_init(struct rtattr *rta, struct rtattr *est, 
	}

	ipt = to_ipt(pc);



	hook = *(u32 *)RTA_DATA(tb[TCA_IPT_HOOK-1]);

	hook = *(u32 *)nla_data(tb[TCA_IPT_HOOK]);



	err = -ENOMEM;

	tname = kmalloc(IFNAMSIZ, GFP_KERNEL);

	if (unlikely(!tname))

		goto err1;

	if (tb[TCA_IPT_TABLE - 1] == NULL ||

	    rtattr_strlcpy(tname, tb[TCA_IPT_TABLE-1], IFNAMSIZ) >= IFNAMSIZ)

	if (tb[TCA_IPT_TABLE] == NULL ||

	    nla_strlcpy(tname, tb[TCA_IPT_TABLE], IFNAMSIZ) >= IFNAMSIZ)

		strcpy(tname, "mangle");



	t = kmemdup(td, td->u.target_size, GFP_KERNEL);
@@ -243,25 +243,25 @@ static int tcf_ipt_dump(struct sk_buff *skb, struct tc_action *a, int bind, int 


	t = kmemdup(ipt->tcfi_t, ipt->tcfi_t->u.user.target_size, GFP_ATOMIC);

	if (unlikely(!t))

		goto rtattr_failure;

		goto nla_put_failure;



	c.bindcnt = ipt->tcf_bindcnt - bind;

	c.refcnt = ipt->tcf_refcnt - ref;

	strcpy(t->u.user.name, ipt->tcfi_t->u.kernel.target->name);



	RTA_PUT(skb, TCA_IPT_TARG, ipt->tcfi_t->u.user.target_size, t);

	RTA_PUT(skb, TCA_IPT_INDEX, 4, &ipt->tcf_index);

	RTA_PUT(skb, TCA_IPT_HOOK, 4, &ipt->tcfi_hook);

	RTA_PUT(skb, TCA_IPT_CNT, sizeof(struct tc_cnt), &c);

	RTA_PUT(skb, TCA_IPT_TABLE, IFNAMSIZ, ipt->tcfi_tname);

	NLA_PUT(skb, TCA_IPT_TARG, ipt->tcfi_t->u.user.target_size, t);

	NLA_PUT(skb, TCA_IPT_INDEX, 4, &ipt->tcf_index);

	NLA_PUT(skb, TCA_IPT_HOOK, 4, &ipt->tcfi_hook);

	NLA_PUT(skb, TCA_IPT_CNT, sizeof(struct tc_cnt), &c);

	NLA_PUT(skb, TCA_IPT_TABLE, IFNAMSIZ, ipt->tcfi_tname);

	tm.install = jiffies_to_clock_t(jiffies - ipt->tcf_tm.install);

	tm.lastuse = jiffies_to_clock_t(jiffies - ipt->tcf_tm.lastuse);

	tm.expires = jiffies_to_clock_t(ipt->tcf_tm.expires);

	RTA_PUT(skb, TCA_IPT_TM, sizeof (tm), &tm);

	NLA_PUT(skb, TCA_IPT_TM, sizeof (tm), &tm);

	kfree(t);

	return skb->len;



rtattr_failure:

nla_put_failure:

	nlmsg_trim(skb, b);

	kfree(t);

	return -1;

net/sched/act_mirred.c

+9 −9
Original line number Diff line number Diff line
@@ -54,10 +54,10 @@ static inline int tcf_mirred_release(struct tcf_mirred *m, int bind) 
	return 0;

}



static int tcf_mirred_init(struct rtattr *rta, struct rtattr *est,

static int tcf_mirred_init(struct nlattr *nla, struct nlattr *est,

			   struct tc_action *a, int ovr, int bind)

{

	struct rtattr *tb[TCA_MIRRED_MAX];

	struct nlattr *tb[TCA_MIRRED_MAX + 1];

	struct tc_mirred *parm;

	struct tcf_mirred *m;

	struct tcf_common *pc;
@@ -65,13 +65,13 @@ static int tcf_mirred_init(struct rtattr *rta, struct rtattr *est, 
	int ret = 0;

	int ok_push = 0;



	if (rta == NULL || rtattr_parse_nested(tb, TCA_MIRRED_MAX, rta) < 0)

	if (nla == NULL || nla_parse_nested(tb, TCA_MIRRED_MAX, nla, NULL) < 0)

		return -EINVAL;



	if (tb[TCA_MIRRED_PARMS-1] == NULL ||

	    RTA_PAYLOAD(tb[TCA_MIRRED_PARMS-1]) < sizeof(*parm))

	if (tb[TCA_MIRRED_PARMS] == NULL ||

	    nla_len(tb[TCA_MIRRED_PARMS]) < sizeof(*parm))

		return -EINVAL;

	parm = RTA_DATA(tb[TCA_MIRRED_PARMS-1]);

	parm = nla_data(tb[TCA_MIRRED_PARMS]);



	if (parm->ifindex) {

		dev = __dev_get_by_index(&init_net, parm->ifindex);
@@ -207,14 +207,14 @@ static int tcf_mirred_dump(struct sk_buff *skb, struct tc_action *a, int bind, i 
	opt.bindcnt = m->tcf_bindcnt - bind;

	opt.eaction = m->tcfm_eaction;

	opt.ifindex = m->tcfm_ifindex;

	RTA_PUT(skb, TCA_MIRRED_PARMS, sizeof(opt), &opt);

	NLA_PUT(skb, TCA_MIRRED_PARMS, sizeof(opt), &opt);

	t.install = jiffies_to_clock_t(jiffies - m->tcf_tm.install);

	t.lastuse = jiffies_to_clock_t(jiffies - m->tcf_tm.lastuse);

	t.expires = jiffies_to_clock_t(m->tcf_tm.expires);

	RTA_PUT(skb, TCA_MIRRED_TM, sizeof(t), &t);

	NLA_PUT(skb, TCA_MIRRED_TM, sizeof(t), &t);

	return skb->len;



rtattr_failure:

nla_put_failure:

	nlmsg_trim(skb, b);

	return -1;

}