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Diffstat (limited to 'net/sched/sch_api.c')
-rw-r--r--net/sched/sch_api.c87
1 files changed, 49 insertions, 38 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index dc89a9343f30..7abb028dd96b 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -213,14 +213,14 @@ static struct Qdisc *qdisc_leaf(struct Qdisc *p, u32 classid)
/* Find queueing discipline by name */
-static struct Qdisc_ops *qdisc_lookup_ops(struct rtattr *kind)
+static struct Qdisc_ops *qdisc_lookup_ops(struct nlattr *kind)
{
struct Qdisc_ops *q = NULL;
if (kind) {
read_lock(&qdisc_mod_lock);
for (q = qdisc_base; q; q = q->next) {
- if (rtattr_strcmp(kind, q->id) == 0) {
+ if (nla_strcmp(kind, q->id) == 0) {
if (!try_module_get(q->owner))
q = NULL;
break;
@@ -233,7 +233,7 @@ static struct Qdisc_ops *qdisc_lookup_ops(struct rtattr *kind)
static struct qdisc_rate_table *qdisc_rtab_list;
-struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r, struct rtattr *tab)
+struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r, struct nlattr *tab)
{
struct qdisc_rate_table *rtab;
@@ -244,14 +244,14 @@ struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r, struct rtattr *ta
}
}
- if (tab == NULL || r->rate == 0 || r->cell_log == 0 || RTA_PAYLOAD(tab) != 1024)
+ if (tab == NULL || r->rate == 0 || r->cell_log == 0 || nla_len(tab) != 1024)
return NULL;
rtab = kmalloc(sizeof(*rtab), GFP_KERNEL);
if (rtab) {
rtab->rate = *r;
rtab->refcnt = 1;
- memcpy(rtab->data, RTA_DATA(tab), 1024);
+ memcpy(rtab->data, nla_data(tab), 1024);
rtab->next = qdisc_rtab_list;
qdisc_rtab_list = rtab;
}
@@ -445,10 +445,10 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
static struct Qdisc *
qdisc_create(struct net_device *dev, u32 parent, u32 handle,
- struct rtattr **tca, int *errp)
+ struct nlattr **tca, int *errp)
{
int err;
- struct rtattr *kind = tca[TCA_KIND-1];
+ struct nlattr *kind = tca[TCA_KIND];
struct Qdisc *sch;
struct Qdisc_ops *ops;
@@ -456,7 +456,7 @@ qdisc_create(struct net_device *dev, u32 parent, u32 handle,
#ifdef CONFIG_KMOD
if (ops == NULL && kind != NULL) {
char name[IFNAMSIZ];
- if (rtattr_strlcpy(name, kind, IFNAMSIZ) < IFNAMSIZ) {
+ if (nla_strlcpy(name, kind, IFNAMSIZ) < IFNAMSIZ) {
/* We dropped the RTNL semaphore in order to
* perform the module load. So, even if we
* succeeded in loading the module we have to
@@ -509,11 +509,11 @@ qdisc_create(struct net_device *dev, u32 parent, u32 handle,
sch->handle = handle;
- if (!ops->init || (err = ops->init(sch, tca[TCA_OPTIONS-1])) == 0) {
- if (tca[TCA_RATE-1]) {
+ if (!ops->init || (err = ops->init(sch, tca[TCA_OPTIONS])) == 0) {
+ if (tca[TCA_RATE]) {
err = gen_new_estimator(&sch->bstats, &sch->rate_est,
sch->stats_lock,
- tca[TCA_RATE-1]);
+ tca[TCA_RATE]);
if (err) {
/*
* Any broken qdiscs that would require
@@ -541,20 +541,20 @@ err_out:
return NULL;
}
-static int qdisc_change(struct Qdisc *sch, struct rtattr **tca)
+static int qdisc_change(struct Qdisc *sch, struct nlattr **tca)
{
- if (tca[TCA_OPTIONS-1]) {
+ if (tca[TCA_OPTIONS]) {
int err;
if (sch->ops->change == NULL)
return -EINVAL;
- err = sch->ops->change(sch, tca[TCA_OPTIONS-1]);
+ err = sch->ops->change(sch, tca[TCA_OPTIONS]);
if (err)
return err;
}
- if (tca[TCA_RATE-1])
+ if (tca[TCA_RATE])
gen_replace_estimator(&sch->bstats, &sch->rate_est,
- sch->stats_lock, tca[TCA_RATE-1]);
+ sch->stats_lock, tca[TCA_RATE]);
return 0;
}
@@ -606,7 +606,7 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
{
struct net *net = skb->sk->sk_net;
struct tcmsg *tcm = NLMSG_DATA(n);
- struct rtattr **tca = arg;
+ struct nlattr *tca[TCA_MAX + 1];
struct net_device *dev;
u32 clid = tcm->tcm_parent;
struct Qdisc *q = NULL;
@@ -619,6 +619,10 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL)
return -ENODEV;
+ err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL);
+ if (err < 0)
+ return err;
+
if (clid) {
if (clid != TC_H_ROOT) {
if (TC_H_MAJ(clid) != TC_H_MAJ(TC_H_INGRESS)) {
@@ -641,7 +645,7 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
return -ENOENT;
}
- if (tca[TCA_KIND-1] && rtattr_strcmp(tca[TCA_KIND-1], q->ops->id))
+ if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id))
return -EINVAL;
if (n->nlmsg_type == RTM_DELQDISC) {
@@ -671,7 +675,7 @@ static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
{
struct net *net = skb->sk->sk_net;
struct tcmsg *tcm;
- struct rtattr **tca;
+ struct nlattr *tca[TCA_MAX + 1];
struct net_device *dev;
u32 clid;
struct Qdisc *q, *p;
@@ -683,13 +687,16 @@ static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
replay:
/* Reinit, just in case something touches this. */
tcm = NLMSG_DATA(n);
- tca = arg;
clid = tcm->tcm_parent;
q = p = NULL;
if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL)
return -ENODEV;
+ err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL);
+ if (err < 0)
+ return err;
+
if (clid) {
if (clid != TC_H_ROOT) {
if (clid != TC_H_INGRESS) {
@@ -717,7 +724,7 @@ replay:
goto create_n_graft;
if (n->nlmsg_flags&NLM_F_EXCL)
return -EEXIST;
- if (tca[TCA_KIND-1] && rtattr_strcmp(tca[TCA_KIND-1], q->ops->id))
+ if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id))
return -EINVAL;
if (q == p ||
(p && check_loop(q, p, 0)))
@@ -750,8 +757,8 @@ replay:
if ((n->nlmsg_flags&NLM_F_CREATE) &&
(n->nlmsg_flags&NLM_F_REPLACE) &&
((n->nlmsg_flags&NLM_F_EXCL) ||
- (tca[TCA_KIND-1] &&
- rtattr_strcmp(tca[TCA_KIND-1], q->ops->id))))
+ (tca[TCA_KIND] &&
+ nla_strcmp(tca[TCA_KIND], q->ops->id))))
goto create_n_graft;
}
}
@@ -766,7 +773,7 @@ replay:
return -ENOENT;
if (n->nlmsg_flags&NLM_F_EXCL)
return -EEXIST;
- if (tca[TCA_KIND-1] && rtattr_strcmp(tca[TCA_KIND-1], q->ops->id))
+ if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id))
return -EINVAL;
err = qdisc_change(q, tca);
if (err == 0)
@@ -827,31 +834,31 @@ static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid,
tcm->tcm_parent = clid;
tcm->tcm_handle = q->handle;
tcm->tcm_info = atomic_read(&q->refcnt);
- RTA_PUT(skb, TCA_KIND, IFNAMSIZ, q->ops->id);
+ NLA_PUT(skb, TCA_KIND, IFNAMSIZ, q->ops->id);
if (q->ops->dump && q->ops->dump(q, skb) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
q->qstats.qlen = q->q.qlen;
if (gnet_stats_start_copy_compat(skb, TCA_STATS2, TCA_STATS,
TCA_XSTATS, q->stats_lock, &d) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
if (q->ops->dump_stats && q->ops->dump_stats(q, &d) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
if (gnet_stats_copy_basic(&d, &q->bstats) < 0 ||
gnet_stats_copy_rate_est(&d, &q->rate_est) < 0 ||
gnet_stats_copy_queue(&d, &q->qstats) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
if (gnet_stats_finish_copy(&d) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
-rtattr_failure:
+nla_put_failure:
nlmsg_trim(skb, b);
return -1;
}
@@ -939,7 +946,7 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
{
struct net *net = skb->sk->sk_net;
struct tcmsg *tcm = NLMSG_DATA(n);
- struct rtattr **tca = arg;
+ struct nlattr *tca[TCA_MAX + 1];
struct net_device *dev;
struct Qdisc *q = NULL;
const struct Qdisc_class_ops *cops;
@@ -956,6 +963,10 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
if ((dev = __dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL)
return -ENODEV;
+ err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL);
+ if (err < 0)
+ return err;
+
/*
parent == TC_H_UNSPEC - unspecified parent.
parent == TC_H_ROOT - class is root, which has no parent.
@@ -1069,25 +1080,25 @@ static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
tcm->tcm_parent = q->handle;
tcm->tcm_handle = q->handle;
tcm->tcm_info = 0;
- RTA_PUT(skb, TCA_KIND, IFNAMSIZ, q->ops->id);
+ NLA_PUT(skb, TCA_KIND, IFNAMSIZ, q->ops->id);
if (cl_ops->dump && cl_ops->dump(q, cl, skb, tcm) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
if (gnet_stats_start_copy_compat(skb, TCA_STATS2, TCA_STATS,
TCA_XSTATS, q->stats_lock, &d) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
if (cl_ops->dump_stats && cl_ops->dump_stats(q, cl, &d) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
if (gnet_stats_finish_copy(&d) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
-rtattr_failure:
+nla_put_failure:
nlmsg_trim(skb, b);
return -1;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-03 00:20:13 +0000