[NET_SCHED]: Convert packet schedulers from rtnetlink to new netlink API
Convert packet schedulers to use the netlink API. Unfortunately a gradual
conversion is not possible without breaking compilation in the middle or
adding lots of casts, so this patch converts them all in one step. The
patch has been mostly generated automatically with some minor edits to
at least allow seperate conversion of classifiers and actions.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 6c344ad..a7b58df 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -313,21 +313,21 @@
/* Pass size change message down to embedded FIFO */
static int set_fifo_limit(struct Qdisc *q, int limit)
{
- struct rtattr *rta;
+ struct nlattr *nla;
int ret = -ENOMEM;
/* Hack to avoid sending change message to non-FIFO */
if (strncmp(q->ops->id + 1, "fifo", 4) != 0)
return 0;
- rta = kmalloc(RTA_LENGTH(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;
+ nla = kmalloc(nla_attr_size(sizeof(struct tc_fifo_qopt)), GFP_KERNEL);
+ 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);
}
return ret;
}
@@ -336,11 +336,11 @@
* Distribution data is a variable size payload containing
* signed 16 bit values.
*/
-static int get_dist_table(struct Qdisc *sch, const struct rtattr *attr)
+static int get_dist_table(struct Qdisc *sch, const struct nlattr *attr)
{
struct netem_sched_data *q = qdisc_priv(sch);
- unsigned long n = RTA_PAYLOAD(attr)/sizeof(__s16);
- const __s16 *data = RTA_DATA(attr);
+ unsigned long n = nla_len(attr)/sizeof(__s16);
+ const __s16 *data = nla_data(attr);
struct disttable *d;
int i;
@@ -363,12 +363,12 @@
return 0;
}
-static int get_correlation(struct Qdisc *sch, const struct rtattr *attr)
+static int get_correlation(struct Qdisc *sch, const struct nlattr *attr)
{
struct netem_sched_data *q = qdisc_priv(sch);
- const struct tc_netem_corr *c = RTA_DATA(attr);
+ const struct tc_netem_corr *c = nla_data(attr);
- if (RTA_PAYLOAD(attr) != sizeof(*c))
+ if (nla_len(attr) != sizeof(*c))
return -EINVAL;
init_crandom(&q->delay_cor, c->delay_corr);
@@ -377,12 +377,12 @@
return 0;
}
-static int get_reorder(struct Qdisc *sch, const struct rtattr *attr)
+static int get_reorder(struct Qdisc *sch, const struct nlattr *attr)
{
struct netem_sched_data *q = qdisc_priv(sch);
- const struct tc_netem_reorder *r = RTA_DATA(attr);
+ const struct tc_netem_reorder *r = nla_data(attr);
- if (RTA_PAYLOAD(attr) != sizeof(*r))
+ if (nla_len(attr) != sizeof(*r))
return -EINVAL;
q->reorder = r->probability;
@@ -390,12 +390,12 @@
return 0;
}
-static int get_corrupt(struct Qdisc *sch, const struct rtattr *attr)
+static int get_corrupt(struct Qdisc *sch, const struct nlattr *attr)
{
struct netem_sched_data *q = qdisc_priv(sch);
- const struct tc_netem_corrupt *r = RTA_DATA(attr);
+ const struct tc_netem_corrupt *r = nla_data(attr);
- if (RTA_PAYLOAD(attr) != sizeof(*r))
+ if (nla_len(attr) != sizeof(*r))
return -EINVAL;
q->corrupt = r->probability;
@@ -404,16 +404,16 @@
}
/* Parse netlink message to set options */
-static int netem_change(struct Qdisc *sch, struct rtattr *opt)
+static int netem_change(struct Qdisc *sch, struct nlattr *opt)
{
struct netem_sched_data *q = qdisc_priv(sch);
struct tc_netem_qopt *qopt;
int ret;
- if (opt == NULL || RTA_PAYLOAD(opt) < sizeof(*qopt))
+ if (opt == NULL || nla_len(opt) < sizeof(*qopt))
return -EINVAL;
- qopt = RTA_DATA(opt);
+ qopt = nla_data(opt);
ret = set_fifo_limit(q->qdisc, qopt->limit);
if (ret) {
pr_debug("netem: can't set fifo limit\n");
@@ -437,33 +437,33 @@
/* Handle nested options after initial queue options.
* Should have put all options in nested format but too late now.
*/
- if (RTA_PAYLOAD(opt) > sizeof(*qopt)) {
- struct rtattr *tb[TCA_NETEM_MAX];
- if (rtattr_parse(tb, TCA_NETEM_MAX,
- RTA_DATA(opt) + sizeof(*qopt),
- RTA_PAYLOAD(opt) - sizeof(*qopt)))
+ if (nla_len(opt) > sizeof(*qopt)) {
+ struct nlattr *tb[TCA_NETEM_MAX + 1];
+ if (nla_parse(tb, TCA_NETEM_MAX,
+ nla_data(opt) + sizeof(*qopt),
+ nla_len(opt) - sizeof(*qopt), NULL))
return -EINVAL;
- if (tb[TCA_NETEM_CORR-1]) {
- ret = get_correlation(sch, tb[TCA_NETEM_CORR-1]);
+ if (tb[TCA_NETEM_CORR]) {
+ ret = get_correlation(sch, tb[TCA_NETEM_CORR]);
if (ret)
return ret;
}
- if (tb[TCA_NETEM_DELAY_DIST-1]) {
- ret = get_dist_table(sch, tb[TCA_NETEM_DELAY_DIST-1]);
+ if (tb[TCA_NETEM_DELAY_DIST]) {
+ ret = get_dist_table(sch, tb[TCA_NETEM_DELAY_DIST]);
if (ret)
return ret;
}
- if (tb[TCA_NETEM_REORDER-1]) {
- ret = get_reorder(sch, tb[TCA_NETEM_REORDER-1]);
+ if (tb[TCA_NETEM_REORDER]) {
+ ret = get_reorder(sch, tb[TCA_NETEM_REORDER]);
if (ret)
return ret;
}
- if (tb[TCA_NETEM_CORRUPT-1]) {
- ret = get_corrupt(sch, tb[TCA_NETEM_CORRUPT-1]);
+ if (tb[TCA_NETEM_CORRUPT]) {
+ ret = get_corrupt(sch, tb[TCA_NETEM_CORRUPT]);
if (ret)
return ret;
}
@@ -515,13 +515,13 @@
return qdisc_reshape_fail(nskb, sch);
}
-static int tfifo_init(struct Qdisc *sch, struct rtattr *opt)
+static int tfifo_init(struct Qdisc *sch, struct nlattr *opt)
{
struct fifo_sched_data *q = qdisc_priv(sch);
if (opt) {
- struct tc_fifo_qopt *ctl = RTA_DATA(opt);
- if (RTA_PAYLOAD(opt) < sizeof(*ctl))
+ struct tc_fifo_qopt *ctl = nla_data(opt);
+ if (nla_len(opt) < sizeof(*ctl))
return -EINVAL;
q->limit = ctl->limit;
@@ -537,10 +537,10 @@
struct fifo_sched_data *q = qdisc_priv(sch);
struct tc_fifo_qopt opt = { .limit = q->limit };
- RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
+ NLA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
return skb->len;
-rtattr_failure:
+nla_put_failure:
return -1;
}
@@ -557,7 +557,7 @@
.dump = tfifo_dump,
};
-static int netem_init(struct Qdisc *sch, struct rtattr *opt)
+static int netem_init(struct Qdisc *sch, struct nlattr *opt)
{
struct netem_sched_data *q = qdisc_priv(sch);
int ret;
@@ -595,7 +595,7 @@
{
const struct netem_sched_data *q = qdisc_priv(sch);
unsigned char *b = skb_tail_pointer(skb);
- struct rtattr *rta = (struct rtattr *) b;
+ struct nlattr *nla = (struct nlattr *) b;
struct tc_netem_qopt qopt;
struct tc_netem_corr cor;
struct tc_netem_reorder reorder;
@@ -607,26 +607,26 @@
qopt.loss = q->loss;
qopt.gap = q->gap;
qopt.duplicate = q->duplicate;
- RTA_PUT(skb, TCA_OPTIONS, sizeof(qopt), &qopt);
+ NLA_PUT(skb, TCA_OPTIONS, sizeof(qopt), &qopt);
cor.delay_corr = q->delay_cor.rho;
cor.loss_corr = q->loss_cor.rho;
cor.dup_corr = q->dup_cor.rho;
- RTA_PUT(skb, TCA_NETEM_CORR, sizeof(cor), &cor);
+ NLA_PUT(skb, TCA_NETEM_CORR, sizeof(cor), &cor);
reorder.probability = q->reorder;
reorder.correlation = q->reorder_cor.rho;
- RTA_PUT(skb, TCA_NETEM_REORDER, sizeof(reorder), &reorder);
+ NLA_PUT(skb, TCA_NETEM_REORDER, sizeof(reorder), &reorder);
corrupt.probability = q->corrupt;
corrupt.correlation = q->corrupt_cor.rho;
- RTA_PUT(skb, TCA_NETEM_CORRUPT, sizeof(corrupt), &corrupt);
+ NLA_PUT(skb, TCA_NETEM_CORRUPT, sizeof(corrupt), &corrupt);
- rta->rta_len = skb_tail_pointer(skb) - b;
+ nla->nla_len = skb_tail_pointer(skb) - b;
return skb->len;
-rtattr_failure:
+nla_put_failure:
nlmsg_trim(skb, b);
return -1;
}
@@ -678,7 +678,7 @@
}
static int netem_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
- struct rtattr **tca, unsigned long *arg)
+ struct nlattr **tca, unsigned long *arg)
{
return -ENOSYS;
}