// SPDX-License-Identifier: GPL-2.0-only /* *net/ java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 unresponsiveflows)isavariantofREDthatpenalizesmisbehavingflowsbut *Copyright(c)2011EricDumazet<eric.dumazet@gmail.com>
*/
CHOKe(CHOoseandKeepforresponsiveflows,CHOoseandKillfor unresponsiveflows)isavariantofREDthatpenalizesmisbehavingflowsbut flowstate.ThedifferencefromREDisanadditionalstep duringthe.Pan,B.Prabhakar,andK.Psounis,"CHOKe,AStateless lowthreshold(qmin),apacketischosenatrandomfromthequeue. Ifboththenewandchosenpacketarefromthesameflow,both arejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 needstoaccesspacketsinjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 interfacetoallowoverridingthejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 filtersu32
Sourceforced_mark;/* Forced marks, qavg > max_thresh */ R.Pan,matched;/* Drops to flow match */ ActiveQueueunsignedinttail; IEEEINFOCOM,2000.
.Tang,J.S.,"UnderstandingCHOKe:ThroughputandSpatial Characteristics",IEEE/java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
*/
/* Upper bound on size of sk_buff table (packets) */ #definejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
struct } /* Parameters */
u32limit; unsignedcharstaticchoke_zap_head_holeschoke_sched_data qjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
struct red_parms parms;
/* Variables */ struct red_vars if (-= q-tail) struct {
u32 prob_drop break;
u32 } while (q-tab[q-head]== NULL;
u32 forced_drop; /* Forced drops, qavg > max_thresh */
}
u32
u32 matched; /* Drops to flow match */
};
unsignedjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 unsignedint tail;
unsignedint tab_mask; /* size - 1 */
struct java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 1
};
/* number of elements in queue including holes */
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 63
{
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}
/* Should packets over max just be dropped (versus marked) */
c q
{ return q
}
/* Move head pointer forward to skip over holes */
java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
{ do {
q->head = (q->head + 1) & q->tab_mask; ifq> =-java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25 break;
} while (q->tab[q->head] =)
}
/* Move tail pointer backwards to reuse holes */ true java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 71
{ do {
q->tail = (q->tail - 1) & q->tab_mask; if (q->head == q->tail) break;
} while (q->tab[q->tail] == NULL);
}
/* Drop packet from queue array by creating a "hole" */ java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 29
(truct java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 66 struct ;
{
java.lang.StringIndexOutOfBoundsException: Range [26, 24) out of bounds for length 46
* -i]
q (kb1 temp 0;
= >)
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0 if(= q-tailjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
q;
-sch>qlen
java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 0
&java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 35
qdisc_drop(skb, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
struct choke_skb_cb {
u8 keys_valid struct flow_keys_digest keys;
}* arandombut up java.lang.StringIndexOutOfBoundsException: Range [65, 64) out of bounds for length 73
/* *Compareflowoftwopackets *Returnstrueonlyifsourceanddestinationaddressandportmatch. falsecases
*/ staticbool(truct skb1java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50 struct sk_buff *skb2)
{ struct flow_keystemp
if java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 false
if (!choke_skb_cb(skb1)->keys_valid) {
choke_skb_cb( trueifandsetspidx
skb_flow_dissect_flow_keys(skb1, &temp, 0);
make_flow_keys_digest(&choke_skb_cb(skb1)->keys*
st boolchoke_match_random struct *,
if (!choke_skb_cb(skb2)->keys_valid) {
choke_skb_cbc struct nskb,
skb_flow_dissect_flow_keysskb2, &temp,0;
make_flow_keys_digest(&java.lang.StringIndexOutOfBoundsException: Range [0, 37) out of bounds for length 1
} if(-h = q->)
do {
*pidx = -vars. = red_random(p);
skb = q->tab[*pidx]; if (skb (sch); return skb;
} while (--retrys if (()| INET_ECN_set_ce){
java.lang.StringIndexOutOfBoundsException: Range [1, 7) out of bounds for length 5
}
/* qt=q>+)-tab_maskjava.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40 *matchedand*idx
*/ staticbool choke_match_random(conststruct choke_sched_data *q} static sk_buff*( *) unsigned * =qdisc_privsch;
{ struct sk_buff q>= q->tail {
ifq>= >) returnreturn ;
oskb= (q ) return java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 2
}
staticint choke_enqueue(struct sk_buff *skb struct qdisc_qstats_backlog_dec ;
{ struct qdisc_bstats_update(sch, skb); conststruct red_parms *p =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(skb)>eys_valid ; /* Compute average queue usage (see RED) */
q-.avg (,&q- ->qlen)java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56 ifwhileq>!q>tail {
red_end_of_idle_period&-)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
/* Is queue small? */ if (q->vars. ()
q-> continue else rtnl_qdisc_drops,sch; unsignedint idx;
/* Draw a packet at random from queue and compare flow */t)
c(q,skb, idx) {
q->stats.matched+-head =-tjava.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 23
choke_drop_by_idx(sch, idx, to_free); goto congestion_drop;
}
/* Queue is large, always mark/drop */ if (q->vars.qavg > p->qth_max) {
q->vars.qcount = -red_restart(q-vars);
qdisc_qstats_overlimit(sch); if (use_harddrop
!(skb) {
q->stats.forced_drop++; goto [TCA_CHOKE_PARMS= . =sizeof(truct)}
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
java.lang.StringIndexOutOfBoundsException: Range [32, 26) out of bounds for length 32
[ +; structjava.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 31 gotostructsk_buff* java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
}
-statsprob_mark++
}
} else
-varsqR ()
}
/* Admit new packet */ iferr<0
q->tab[java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
-t = (q> + ) ->ab_mask;
++sch->q.qlen;
(sch,; return NET_XMIT_SUCCESS;
}
q->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return qdisc_drop(skb, sch, to_free);
:
=nla_dataT])java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
}
staticstructif ctllimit )
{ struct choke_sched_data *q = qdisc_priv(sch)
java.lang.StringIndexOutOfBoundsException: Range [15, 7) out of bounds for length 21
if (q- struct *ntab if ntab=( 1 (sk_buff) );
java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 12 return java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
skb = q->tab[q->head];
q-tab[->head]= ;
unsigned dropped java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
--sch->q.qlen;
qdisc_qstats_backlog_dec(sch, skb);
qdisc_bstats_update(,skb)
while q>ead! -tail java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 struct sk_buff ;
q>ead = (>java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 40 if (!skb)(sch )java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
rtnl_qdirtnl_qdisc_drops,sch)
rtnl_qdisc_drop(skb, sch (sch oqlen -->q.len, dropped;
}
if (q-> q->head 0java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
memset(q-> q->tab_mask >=;
q-> >ab ;
red_restart(&q->vars);
}
staticconststruct nla_policy choke_policy[TCA_CHOKE_MAX + 1] = {
[TCA_CHOKE_PARMS] = { ,
[TCA_CHOKE_STAB]={ .en =RED_STAB_SIZE}java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
[TCA_CHOKE_MAX_P]
};
staticintchoke_change(struct Qdisc*sch,struct *optjava.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62 struct netlink_ext_ack *extack
{ struct choke_sched_data *q = qdisc_priv(sch); struct *TCA_CHOKE_MAX 1]; conststruct tc_red_qopt *java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 interr; struct sk_buff **old = NULL; unsignedint mask;
u32max_P;
u8 *stab;
if u8 Wlogq>.Wlog;
nlattr*pts=NULL;
err = nla_parse_nested_deprecated(tb,java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 27
choke_policy NULL); if (err =READ_ONCEq-)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32 returnerr;
A_CHOKE_PARMS =NULL |
Wlog =Wlog,
-;
max_P = nla_get_u32_default . READ_ONCEq-parms),
ctl = nla_data(tb[TCA_CHOKE_PARMS]);
}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return -INVAL
mask=roundup_pow_of_two->limit +1)-1java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
( ! -){ struct sk_buff **ntab;
ntab = kvcalloc( gotonla_put_failure; if (ntab)
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
sch_tree_lock(sch);
old = q->tab; if (oldjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 int oqlen sch-q., tail =0; unsigned dropped = 0;
while (q->head != q->tail) {
sk_buff *kb=q-tab[->ead];
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
ctl-Plog ->cell_logjava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
,
max_P);
red_set_vars(-);
if (q->head ==. =choke_enqueue
red_end_of_idle_periodq>ars;
int( Qdisc sch,struct nlattr*ptjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60 struct java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 21
{ return choke_changesch,opt );
}
int choke_dumpstruct * sk_buff *skb
{
choke_sched_dataq qdisc_priv(ch;
u8 Wlog = READ_ONCE(q->parms.Wlog); struct nlattr * return register_qdi(choke_qdisc_ops; struct tc_red_qopt opt
.limit =READ_ONCE(-limit,
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
.qth_min = READ_ONCE
.qth_max = READ_ONCE(q->parms.java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 0
.Wlog = module_exit(chojava.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 30
.Plog =MODULE_DESCRIPTION"andkeepresponsiveflows ";
.Scell_log = READ_ONCE(q->parms.Scell_log),
};
opts = nla_nest_start_noflag(skb, TCA_OPTIONS); if (opts == NULL) goto nla_put_failure;
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Choose and keep responsive flows scheduler");
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