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path: root/net/sched/cls_tcindex.c
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Diffstat (limited to 'net/sched/cls_tcindex.c')
-rw-r--r--net/sched/cls_tcindex.c91
1 files changed, 51 insertions, 40 deletions
diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c
index 20ef330bb91..c721cd4a469 100644
--- a/net/sched/cls_tcindex.c
+++ b/net/sched/cls_tcindex.c
@@ -24,9 +24,6 @@
#define DEFAULT_HASH_SIZE 64 /* optimized for diffserv */
-#define PRIV(tp) ((struct tcindex_data *) (tp)->root)
-
-
struct tcindex_filter_result {
struct tcf_exts exts;
struct tcf_result res;
@@ -50,11 +47,6 @@ struct tcindex_data {
int fall_through; /* 0: only classify if explicit match */
};
-static const struct tcf_ext_map tcindex_ext_map = {
- .police = TCA_TCINDEX_POLICE,
- .action = TCA_TCINDEX_ACT
-};
-
static inline int
tcindex_filter_is_set(struct tcindex_filter_result *r)
{
@@ -79,10 +71,10 @@ tcindex_lookup(struct tcindex_data *p, u16 key)
}
-static int tcindex_classify(struct sk_buff *skb, struct tcf_proto *tp,
+static int tcindex_classify(struct sk_buff *skb, const struct tcf_proto *tp,
struct tcf_result *res)
{
- struct tcindex_data *p = PRIV(tp);
+ struct tcindex_data *p = tp->root;
struct tcindex_filter_result *f;
int key = (skb->tc_index & p->mask) >> p->shift;
@@ -107,7 +99,7 @@ static int tcindex_classify(struct sk_buff *skb, struct tcf_proto *tp,
static unsigned long tcindex_get(struct tcf_proto *tp, u32 handle)
{
- struct tcindex_data *p = PRIV(tp);
+ struct tcindex_data *p = tp->root;
struct tcindex_filter_result *r;
pr_debug("tcindex_get(tp %p,handle 0x%08x)\n", tp, handle);
@@ -145,7 +137,7 @@ static int tcindex_init(struct tcf_proto *tp)
static int
__tcindex_delete(struct tcf_proto *tp, unsigned long arg, int lock)
{
- struct tcindex_data *p = PRIV(tp);
+ struct tcindex_data *p = tp->root;
struct tcindex_filter_result *r = (struct tcindex_filter_result *) arg;
struct tcindex_filter *f = NULL;
@@ -196,10 +188,17 @@ static const struct nla_policy tcindex_policy[TCA_TCINDEX_MAX + 1] = {
[TCA_TCINDEX_CLASSID] = { .type = NLA_U32 },
};
+static void tcindex_filter_result_init(struct tcindex_filter_result *r)
+{
+ memset(r, 0, sizeof(*r));
+ tcf_exts_init(&r->exts, TCA_TCINDEX_ACT, TCA_TCINDEX_POLICE);
+}
+
static int
-tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle,
- struct tcindex_data *p, struct tcindex_filter_result *r,
- struct nlattr **tb, struct nlattr *est)
+tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base,
+ u32 handle, struct tcindex_data *p,
+ struct tcindex_filter_result *r, struct nlattr **tb,
+ struct nlattr *est, bool ovr)
{
int err, balloc = 0;
struct tcindex_filter_result new_filter_result, *old_r = r;
@@ -208,17 +207,17 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle,
struct tcindex_filter *f = NULL; /* make gcc behave */
struct tcf_exts e;
- err = tcf_exts_validate(tp, tb, est, &e, &tcindex_ext_map);
+ tcf_exts_init(&e, TCA_TCINDEX_ACT, TCA_TCINDEX_POLICE);
+ err = tcf_exts_validate(net, tp, tb, est, &e, ovr);
if (err < 0)
return err;
memcpy(&cp, p, sizeof(cp));
- memset(&new_filter_result, 0, sizeof(new_filter_result));
+ tcindex_filter_result_init(&new_filter_result);
+ tcindex_filter_result_init(&cr);
if (old_r)
- memcpy(&cr, r, sizeof(cr));
- else
- memset(&cr, 0, sizeof(cr));
+ cr.res = r->res;
if (tb[TCA_TCINDEX_HASH])
cp.hash = nla_get_u32(tb[TCA_TCINDEX_HASH]);
@@ -249,7 +248,7 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle,
* of the hashing index is below the threshold.
*/
if ((cp.mask >> cp.shift) < PERFECT_HASH_THRESHOLD)
- cp.hash = (cp.mask >> cp.shift)+1;
+ cp.hash = (cp.mask >> cp.shift) + 1;
else
cp.hash = DEFAULT_HASH_SIZE;
}
@@ -270,9 +269,14 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle,
err = -ENOMEM;
if (!cp.perfect && !cp.h) {
if (valid_perfect_hash(&cp)) {
+ int i;
+
cp.perfect = kcalloc(cp.hash, sizeof(*r), GFP_KERNEL);
if (!cp.perfect)
goto errout;
+ for (i = 0; i < cp.hash; i++)
+ tcf_exts_init(&cp.perfect[i].exts, TCA_TCINDEX_ACT,
+ TCA_TCINDEX_POLICE);
balloc = 1;
} else {
cp.h = kcalloc(cp.hash, sizeof(f), GFP_KERNEL);
@@ -298,14 +302,17 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle,
tcf_bind_filter(tp, &cr.res, base);
}
- tcf_exts_change(tp, &cr.exts, &e);
+ if (old_r)
+ tcf_exts_change(tp, &r->exts, &e);
+ else
+ tcf_exts_change(tp, &cr.exts, &e);
tcf_tree_lock(tp);
if (old_r && old_r != r)
- memset(old_r, 0, sizeof(*old_r));
+ tcindex_filter_result_init(old_r);
memcpy(p, &cp, sizeof(cp));
- memcpy(r, &cr, sizeof(cr));
+ r->res = cr.res;
if (r == &new_filter_result) {
struct tcindex_filter **fp;
@@ -332,12 +339,13 @@ errout:
}
static int
-tcindex_change(struct tcf_proto *tp, unsigned long base, u32 handle,
- struct nlattr **tca, unsigned long *arg)
+tcindex_change(struct net *net, struct sk_buff *in_skb,
+ struct tcf_proto *tp, unsigned long base, u32 handle,
+ struct nlattr **tca, unsigned long *arg, bool ovr)
{
struct nlattr *opt = tca[TCA_OPTIONS];
struct nlattr *tb[TCA_TCINDEX_MAX + 1];
- struct tcindex_data *p = PRIV(tp);
+ struct tcindex_data *p = tp->root;
struct tcindex_filter_result *r = (struct tcindex_filter_result *) *arg;
int err;
@@ -352,13 +360,14 @@ tcindex_change(struct tcf_proto *tp, unsigned long base, u32 handle,
if (err < 0)
return err;
- return tcindex_set_parms(tp, base, handle, p, r, tb, tca[TCA_RATE]);
+ return tcindex_set_parms(net, tp, base, handle, p, r, tb,
+ tca[TCA_RATE], ovr);
}
static void tcindex_walk(struct tcf_proto *tp, struct tcf_walker *walker)
{
- struct tcindex_data *p = PRIV(tp);
+ struct tcindex_data *p = tp->root;
struct tcindex_filter *f, *next;
int i;
@@ -405,7 +414,7 @@ static int tcindex_destroy_element(struct tcf_proto *tp,
static void tcindex_destroy(struct tcf_proto *tp)
{
- struct tcindex_data *p = PRIV(tp);
+ struct tcindex_data *p = tp->root;
struct tcf_walker walker;
pr_debug("tcindex_destroy(tp %p),p %p\n", tp, p);
@@ -420,10 +429,10 @@ static void tcindex_destroy(struct tcf_proto *tp)
}
-static int tcindex_dump(struct tcf_proto *tp, unsigned long fh,
+static int tcindex_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
struct sk_buff *skb, struct tcmsg *t)
{
- struct tcindex_data *p = PRIV(tp);
+ struct tcindex_data *p = tp->root;
struct tcindex_filter_result *r = (struct tcindex_filter_result *) fh;
unsigned char *b = skb_tail_pointer(skb);
struct nlattr *nest;
@@ -438,10 +447,11 @@ static int tcindex_dump(struct tcf_proto *tp, unsigned long fh,
if (!fh) {
t->tcm_handle = ~0; /* whatever ... */
- NLA_PUT_U32(skb, TCA_TCINDEX_HASH, p->hash);
- NLA_PUT_U16(skb, TCA_TCINDEX_MASK, p->mask);
- NLA_PUT_U32(skb, TCA_TCINDEX_SHIFT, p->shift);
- NLA_PUT_U32(skb, TCA_TCINDEX_FALL_THROUGH, p->fall_through);
+ if (nla_put_u32(skb, TCA_TCINDEX_HASH, p->hash) ||
+ nla_put_u16(skb, TCA_TCINDEX_MASK, p->mask) ||
+ nla_put_u32(skb, TCA_TCINDEX_SHIFT, p->shift) ||
+ nla_put_u32(skb, TCA_TCINDEX_FALL_THROUGH, p->fall_through))
+ goto nla_put_failure;
nla_nest_end(skb, nest);
} else {
if (p->perfect) {
@@ -460,14 +470,15 @@ static int tcindex_dump(struct tcf_proto *tp, unsigned long fh,
}
}
pr_debug("handle = %d\n", t->tcm_handle);
- if (r->res.class)
- NLA_PUT_U32(skb, TCA_TCINDEX_CLASSID, r->res.classid);
+ if (r->res.class &&
+ nla_put_u32(skb, TCA_TCINDEX_CLASSID, r->res.classid))
+ goto nla_put_failure;
- if (tcf_exts_dump(skb, &r->exts, &tcindex_ext_map) < 0)
+ if (tcf_exts_dump(skb, &r->exts) < 0)
goto nla_put_failure;
nla_nest_end(skb, nest);
- if (tcf_exts_dump_stats(skb, &r->exts, &tcindex_ext_map) < 0)
+ if (tcf_exts_dump_stats(skb, &r->exts) < 0)
goto nla_put_failure;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 20:32:40 +0000