diff options
Diffstat (limited to 'net/sched/sch_red.c')
| -rw-r--r-- | net/sched/sch_red.c | 64 |
1 files changed, 37 insertions, 27 deletions
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c index 9b95fefb70f..3dcd493f4f4 100644 --- a/net/sched/sch_red.c +++ b/net/sched/sch_red.c @@ -177,21 +177,21 @@ static void red_destroy(struct Qdisc *sch) static struct Qdisc *red_create_dflt(struct Qdisc *sch, u32 limit) { struct Qdisc *q; - struct rtattr *rta; + struct nlattr *nla; int ret; q = qdisc_create_dflt(sch->dev, &bfifo_qdisc_ops, TC_H_MAKE(sch->handle, 1)); if (q) { - rta = kmalloc(RTA_LENGTH(sizeof(struct tc_fifo_qopt)), + nla = kmalloc(nla_attr_size(sizeof(struct tc_fifo_qopt)), GFP_KERNEL); - if (rta) { - rta->rta_type = RTM_NEWQDISC; - rta->rta_len = RTA_LENGTH(sizeof(struct tc_fifo_qopt)); - ((struct tc_fifo_qopt *)RTA_DATA(rta))->limit = limit; + if (nla) { + nla->nla_type = RTM_NEWQDISC; + nla->nla_len = nla_attr_size(sizeof(struct tc_fifo_qopt)); + ((struct tc_fifo_qopt *)nla_data(nla))->limit = limit; - ret = q->ops->change(q, rta); - kfree(rta); + ret = q->ops->change(q, nla); + kfree(nla); if (ret == 0) return q; @@ -201,23 +201,31 @@ static struct Qdisc *red_create_dflt(struct Qdisc *sch, u32 limit) return NULL; } -static int red_change(struct Qdisc *sch, struct rtattr *opt) +static const struct nla_policy red_policy[TCA_RED_MAX + 1] = { + [TCA_RED_PARMS] = { .len = sizeof(struct tc_red_qopt) }, + [TCA_RED_STAB] = { .len = RED_STAB_SIZE }, +}; + +static int red_change(struct Qdisc *sch, struct nlattr *opt) { struct red_sched_data *q = qdisc_priv(sch); - struct rtattr *tb[TCA_RED_MAX]; + struct nlattr *tb[TCA_RED_MAX + 1]; struct tc_red_qopt *ctl; struct Qdisc *child = NULL; + int err; - if (opt == NULL || rtattr_parse_nested(tb, TCA_RED_MAX, opt)) + if (opt == NULL) return -EINVAL; - if (tb[TCA_RED_PARMS-1] == NULL || - RTA_PAYLOAD(tb[TCA_RED_PARMS-1]) < sizeof(*ctl) || - tb[TCA_RED_STAB-1] == NULL || - RTA_PAYLOAD(tb[TCA_RED_STAB-1]) < RED_STAB_SIZE) + err = nla_parse_nested(tb, TCA_RED_MAX, opt, red_policy); + if (err < 0) + return err; + + if (tb[TCA_RED_PARMS] == NULL || + tb[TCA_RED_STAB] == NULL) return -EINVAL; - ctl = RTA_DATA(tb[TCA_RED_PARMS-1]); + ctl = nla_data(tb[TCA_RED_PARMS]); if (ctl->limit > 0) { child = red_create_dflt(sch, ctl->limit); @@ -235,7 +243,7 @@ static int red_change(struct Qdisc *sch, struct rtattr *opt) red_set_parms(&q->parms, ctl->qth_min, ctl->qth_max, ctl->Wlog, ctl->Plog, ctl->Scell_log, - RTA_DATA(tb[TCA_RED_STAB-1])); + nla_data(tb[TCA_RED_STAB])); if (skb_queue_empty(&sch->q)) red_end_of_idle_period(&q->parms); @@ -244,7 +252,7 @@ static int red_change(struct Qdisc *sch, struct rtattr *opt) return 0; } -static int red_init(struct Qdisc* sch, struct rtattr *opt) +static int red_init(struct Qdisc* sch, struct nlattr *opt) { struct red_sched_data *q = qdisc_priv(sch); @@ -255,7 +263,7 @@ static int red_init(struct Qdisc* sch, struct rtattr *opt) static int red_dump(struct Qdisc *sch, struct sk_buff *skb) { struct red_sched_data *q = qdisc_priv(sch); - struct rtattr *opts = NULL; + struct nlattr *opts = NULL; struct tc_red_qopt opt = { .limit = q->limit, .flags = q->flags, @@ -266,12 +274,14 @@ static int red_dump(struct Qdisc *sch, struct sk_buff *skb) .Scell_log = q->parms.Scell_log, }; - opts = RTA_NEST(skb, TCA_OPTIONS); - RTA_PUT(skb, TCA_RED_PARMS, sizeof(opt), &opt); - return RTA_NEST_END(skb, opts); + opts = nla_nest_start(skb, TCA_OPTIONS); + if (opts == NULL) + goto nla_put_failure; + NLA_PUT(skb, TCA_RED_PARMS, sizeof(opt), &opt); + return nla_nest_end(skb, opts); -rtattr_failure: - return RTA_NEST_CANCEL(skb, opts); +nla_put_failure: + return nla_nest_cancel(skb, opts); } static int red_dump_stats(struct Qdisc *sch, struct gnet_dump *d) @@ -332,7 +342,7 @@ static void red_put(struct Qdisc *sch, unsigned long arg) } static int red_change_class(struct Qdisc *sch, u32 classid, u32 parentid, - struct rtattr **tca, unsigned long *arg) + struct nlattr **tca, unsigned long *arg) { return -ENOSYS; } @@ -359,7 +369,7 @@ static struct tcf_proto **red_find_tcf(struct Qdisc *sch, unsigned long cl) return NULL; } -static struct Qdisc_class_ops red_class_ops = { +static const struct Qdisc_class_ops red_class_ops = { .graft = red_graft, .leaf = red_leaf, .get = red_get, @@ -371,7 +381,7 @@ static struct Qdisc_class_ops red_class_ops = { .dump = red_dump_class, }; -static struct Qdisc_ops red_qdisc_ops = { +static struct Qdisc_ops red_qdisc_ops __read_mostly = { .id = "red", .priv_size = sizeof(struct red_sched_data), .cl_ops = &red_class_ops, |