[NET_SCHED]: Convert actions from rtnetlink to new netlink API
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 11f3097..ebd21d2 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -68,7 +68,7 @@
{
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 @@
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 @@
cb->args[0] += n_i;
return n_i;
-rtattr_failure:
+nla_put_failure:
nlmsg_trim(skb, r);
goto done;
}
@@ -112,12 +112,12 @@
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 @@
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 @@
}
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 @@
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 @@
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 @@
{
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 @@
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 @@
/* 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 @@
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 @@
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 @@
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 @@
}
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 @@
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 @@
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 @@
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 @@
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 @@
return err;
-rtattr_failure:
+nla_put_failure:
nlmsg_failure:
module_put(a->ops->owner);
err_out:
@@ -801,13 +801,13 @@
}
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 @@
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 @@
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 @@
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 @@
err = 0;
return err;
-rtattr_failure:
+nla_put_failure:
nlmsg_failure:
kfree_skb(skb);
return -1;
@@ -905,14 +905,14 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
module_put(a_o->owner);
return skb->len;
-rtattr_failure:
+nla_put_failure:
nlmsg_failure:
module_put(a_o->owner);
nlmsg_trim(skb, b);