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Diffstat (limited to 'net/sched/cls_u32.c')
-rw-r--r--net/sched/cls_u32.c103
1 files changed, 53 insertions, 50 deletions
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index c3900820916..e8a77568912 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -460,10 +460,20 @@ static u32 gen_new_kid(struct tc_u_hnode *ht, u32 handle)
return handle|(i>0xFFF ? 0xFFF : i);
}
+static const struct nla_policy u32_policy[TCA_U32_MAX + 1] = {
+ [TCA_U32_CLASSID] = { .type = NLA_U32 },
+ [TCA_U32_HASH] = { .type = NLA_U32 },
+ [TCA_U32_LINK] = { .type = NLA_U32 },
+ [TCA_U32_DIVISOR] = { .type = NLA_U32 },
+ [TCA_U32_SEL] = { .len = sizeof(struct tc_u32_sel) },
+ [TCA_U32_INDEV] = { .type = NLA_STRING, .len = IFNAMSIZ },
+ [TCA_U32_MARK] = { .len = sizeof(struct tc_u32_mark) },
+};
+
static int u32_set_parms(struct tcf_proto *tp, unsigned long base,
struct tc_u_hnode *ht,
- struct tc_u_knode *n, struct rtattr **tb,
- struct rtattr *est)
+ struct tc_u_knode *n, struct nlattr **tb,
+ struct nlattr *est)
{
int err;
struct tcf_exts e;
@@ -473,8 +483,8 @@ static int u32_set_parms(struct tcf_proto *tp, unsigned long base,
return err;
err = -EINVAL;
- if (tb[TCA_U32_LINK-1]) {
- u32 handle = *(u32*)RTA_DATA(tb[TCA_U32_LINK-1]);
+ if (tb[TCA_U32_LINK]) {
+ u32 handle = nla_get_u32(tb[TCA_U32_LINK]);
struct tc_u_hnode *ht_down = NULL;
if (TC_U32_KEY(handle))
@@ -495,14 +505,14 @@ static int u32_set_parms(struct tcf_proto *tp, unsigned long base,
if (ht_down)
ht_down->refcnt--;
}
- if (tb[TCA_U32_CLASSID-1]) {
- n->res.classid = *(u32*)RTA_DATA(tb[TCA_U32_CLASSID-1]);
+ if (tb[TCA_U32_CLASSID]) {
+ n->res.classid = nla_get_u32(tb[TCA_U32_CLASSID]);
tcf_bind_filter(tp, &n->res, base);
}
#ifdef CONFIG_NET_CLS_IND
- if (tb[TCA_U32_INDEV-1]) {
- err = tcf_change_indev(tp, n->indev, tb[TCA_U32_INDEV-1]);
+ if (tb[TCA_U32_INDEV]) {
+ err = tcf_change_indev(tp, n->indev, tb[TCA_U32_INDEV]);
if (err < 0)
goto errout;
}
@@ -516,33 +526,34 @@ errout:
}
static int u32_change(struct tcf_proto *tp, unsigned long base, u32 handle,
- struct rtattr **tca,
+ struct nlattr **tca,
unsigned long *arg)
{
struct tc_u_common *tp_c = tp->data;
struct tc_u_hnode *ht;
struct tc_u_knode *n;
struct tc_u32_sel *s;
- struct rtattr *opt = tca[TCA_OPTIONS-1];
- struct rtattr *tb[TCA_U32_MAX];
+ struct nlattr *opt = tca[TCA_OPTIONS];
+ struct nlattr *tb[TCA_U32_MAX + 1];
u32 htid;
int err;
if (opt == NULL)
return handle ? -EINVAL : 0;
- if (rtattr_parse_nested(tb, TCA_U32_MAX, opt) < 0)
- return -EINVAL;
+ err = nla_parse_nested(tb, TCA_U32_MAX, opt, u32_policy);
+ if (err < 0)
+ return err;
if ((n = (struct tc_u_knode*)*arg) != NULL) {
if (TC_U32_KEY(n->handle) == 0)
return -EINVAL;
- return u32_set_parms(tp, base, n->ht_up, n, tb, tca[TCA_RATE-1]);
+ return u32_set_parms(tp, base, n->ht_up, n, tb, tca[TCA_RATE]);
}
- if (tb[TCA_U32_DIVISOR-1]) {
- unsigned divisor = *(unsigned*)RTA_DATA(tb[TCA_U32_DIVISOR-1]);
+ if (tb[TCA_U32_DIVISOR]) {
+ unsigned divisor = nla_get_u32(tb[TCA_U32_DIVISOR]);
if (--divisor > 0x100)
return -EINVAL;
@@ -567,8 +578,8 @@ static int u32_change(struct tcf_proto *tp, unsigned long base, u32 handle,
return 0;
}
- if (tb[TCA_U32_HASH-1]) {
- htid = *(unsigned*)RTA_DATA(tb[TCA_U32_HASH-1]);
+ if (tb[TCA_U32_HASH]) {
+ htid = nla_get_u32(tb[TCA_U32_HASH]);
if (TC_U32_HTID(htid) == TC_U32_ROOT) {
ht = tp->root;
htid = ht->handle;
@@ -592,11 +603,10 @@ static int u32_change(struct tcf_proto *tp, unsigned long base, u32 handle,
} else
handle = gen_new_kid(ht, htid);
- if (tb[TCA_U32_SEL-1] == NULL ||
- RTA_PAYLOAD(tb[TCA_U32_SEL-1]) < sizeof(struct tc_u32_sel))
+ if (tb[TCA_U32_SEL] == NULL)
return -EINVAL;
- s = RTA_DATA(tb[TCA_U32_SEL-1]);
+ s = nla_data(tb[TCA_U32_SEL]);
n = kzalloc(sizeof(*n) + s->nkeys*sizeof(struct tc_u32_key), GFP_KERNEL);
if (n == NULL)
@@ -616,23 +626,16 @@ static int u32_change(struct tcf_proto *tp, unsigned long base, u32 handle,
n->fshift = s->hmask ? ffs(ntohl(s->hmask)) - 1 : 0;
#ifdef CONFIG_CLS_U32_MARK
- if (tb[TCA_U32_MARK-1]) {
+ if (tb[TCA_U32_MARK]) {
struct tc_u32_mark *mark;
- if (RTA_PAYLOAD(tb[TCA_U32_MARK-1]) < sizeof(struct tc_u32_mark)) {
-#ifdef CONFIG_CLS_U32_PERF
- kfree(n->pf);
-#endif
- kfree(n);
- return -EINVAL;
- }
- mark = RTA_DATA(tb[TCA_U32_MARK-1]);
+ mark = nla_data(tb[TCA_U32_MARK]);
memcpy(&n->mark, mark, sizeof(struct tc_u32_mark));
n->mark.success = 0;
}
#endif
- err = u32_set_parms(tp, base, ht, n, tb, tca[TCA_RATE-1]);
+ err = u32_set_parms(tp, base, ht, n, tb, tca[TCA_RATE]);
if (err == 0) {
struct tc_u_knode **ins;
for (ins = &ht->ht[TC_U32_HASH(handle)]; *ins; ins = &(*ins)->next)
@@ -693,66 +696,66 @@ static int u32_dump(struct tcf_proto *tp, unsigned long fh,
struct sk_buff *skb, struct tcmsg *t)
{
struct tc_u_knode *n = (struct tc_u_knode*)fh;
- unsigned char *b = skb_tail_pointer(skb);
- struct rtattr *rta;
+ struct nlattr *nest;
if (n == NULL)
return skb->len;
t->tcm_handle = n->handle;
- rta = (struct rtattr*)b;
- RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
+ nest = nla_nest_start(skb, TCA_OPTIONS);
+ if (nest == NULL)
+ goto nla_put_failure;
if (TC_U32_KEY(n->handle) == 0) {
struct tc_u_hnode *ht = (struct tc_u_hnode*)fh;
u32 divisor = ht->divisor+1;
- RTA_PUT(skb, TCA_U32_DIVISOR, 4, &divisor);
+ NLA_PUT_U32(skb, TCA_U32_DIVISOR, divisor);
} else {
- RTA_PUT(skb, TCA_U32_SEL,
+ NLA_PUT(skb, TCA_U32_SEL,
sizeof(n->sel) + n->sel.nkeys*sizeof(struct tc_u32_key),
&n->sel);
if (n->ht_up) {
u32 htid = n->handle & 0xFFFFF000;
- RTA_PUT(skb, TCA_U32_HASH, 4, &htid);
+ NLA_PUT_U32(skb, TCA_U32_HASH, htid);
}
if (n->res.classid)
- RTA_PUT(skb, TCA_U32_CLASSID, 4, &n->res.classid);
+ NLA_PUT_U32(skb, TCA_U32_CLASSID, n->res.classid);
if (n->ht_down)
- RTA_PUT(skb, TCA_U32_LINK, 4, &n->ht_down->handle);
+ NLA_PUT_U32(skb, TCA_U32_LINK, n->ht_down->handle);
#ifdef CONFIG_CLS_U32_MARK
if (n->mark.val || n->mark.mask)
- RTA_PUT(skb, TCA_U32_MARK, sizeof(n->mark), &n->mark);
+ NLA_PUT(skb, TCA_U32_MARK, sizeof(n->mark), &n->mark);
#endif
if (tcf_exts_dump(skb, &n->exts, &u32_ext_map) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
#ifdef CONFIG_NET_CLS_IND
if(strlen(n->indev))
- RTA_PUT(skb, TCA_U32_INDEV, IFNAMSIZ, n->indev);
+ NLA_PUT_STRING(skb, TCA_U32_INDEV, n->indev);
#endif
#ifdef CONFIG_CLS_U32_PERF
- RTA_PUT(skb, TCA_U32_PCNT,
+ NLA_PUT(skb, TCA_U32_PCNT,
sizeof(struct tc_u32_pcnt) + n->sel.nkeys*sizeof(u64),
n->pf);
#endif
}
- rta->rta_len = skb_tail_pointer(skb) - b;
+ nla_nest_end(skb, nest);
+
if (TC_U32_KEY(n->handle))
if (tcf_exts_dump_stats(skb, &n->exts, &u32_ext_map) < 0)
- goto rtattr_failure;
+ goto nla_put_failure;
return skb->len;
-rtattr_failure:
- nlmsg_trim(skb, b);
+nla_put_failure:
+ nla_nest_cancel(skb, nest);
return -1;
}
-static struct tcf_proto_ops cls_u32_ops = {
- .next = NULL,
+static struct tcf_proto_ops cls_u32_ops __read_mostly = {
.kind = "u32",
.classify = u32_classify,
.init = u32_init,
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-25 22:14:52 +0000