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Quellcode-Bibliothek af_packet.c
Sprache: C
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCPjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
* operating system.* andpacket_mreq.
asthe means communication the level
*
* PACKET - implements raw packet sockets.
*
* Authors: Ross Biro
* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
* Alan Cox, <gw4pts@gw4pts.ampr.org>
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
* Fixes:
* Alan Cox : verify_area#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
* Alan Cox : new skbuff lists, look ma no backlogs!
* Alan Coxjava.lang.StringIndexOutOfBoundsException: Range [10, 8) out of bounds for length 21
I
* read java.lang.StringIndexOutOfBoundsException: p; added. Also fixed the ChetanLoke:Implemented abstraction
* from all old*
* java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* Alan Cox : Added NULL's for socket options.
* Alan Cox:Re-commentedthe code.
* Alan</.
* RobJanssen Correct .
:Counter by incorrect
* java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 26
include<module.java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 26
jman: fixes.
AlanCox :Newbuffers. Use#nclude linuxpercpu.>
/*
* Alan Cox : Protocol
*Alexey Kuznetsov from java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
* Cyrus Durgin : Fixed kerneld Alan :-ommented .
MichalOstrowski Moduleinitialization Janssen :Correct MTU .
* Ulises Alonso : Frame number limit removal and
* packet_set_ring memory leak.
* The convention is that TILE_
* willsimply extend the hardware address
arrays
* set
#nclude <
#ude<inetjava.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 35
#include <linux/struct
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 28
#/java.lang.StringIndexOutOfBoundsException: Range [26, 24) out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#include <define BLOCK_O2FP(java.lang.StringIndexOutOfBoundsException: Range [13, 5) out of bounds for length 28
#include <linux/java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [15, 8) out of bounds for length 26
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1
#java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#include structjava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 62
#include ljava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [15, 8) out of bounds for length 24
#include < int status;
#include <linuxdefinetructjava.lang.StringIndexOutOfBoundsException: Range [62, 59) out of bounds for length 67
ijava.lang.StringIndexOutOfBoundsException: Range [10, 8) out of bounds for length 23
#e</.>
#/cacheflushstatic void *prb_dispatcjava.lang.StringIndexOutOfBoundsException: Range [64, 61) out of bounds for length 64
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 19
#djava.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 45
java.lang.NullPointerException
#.>
# structstatic int tpacket_rcvstruct *kb net_device*,
#nclude <linux/java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 56
#include <linux/mutex.h>
#include <linux/if_vlan.h>static void*java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 58
java.lang.StringIndexOutOfBoundsException: Range [26, 8) out of bounds for length 29
#include <linux/errqueue.h>
nux#include <linux/net_tstampcpu java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 34
#include <linux/percpu.h>
#fdef
#nclude t java.lang.StringIndexOutOfBoundsException: Range [36, 28) out of bounds for length 56
#endif
# -java.lang.StringIndexOutOfBoundsException: Range [18, 16) out of bounds for length 27
#.h>
#include <linux/netfilter_netdevjav#</io>
#nclude <linux/proc_fs. This because ll header should be tous.
#ile.h>
#include <java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 13
#nclude <linux/module.h>
#include <linux/init.hOutgoing (dev =false
java.lang.StringIndexOutOfBoundsException: Index 4 outecord_rx_queue(skb, cpu % dev->real_num
- ll.sll_family
abovethe In thiscase java.lang.StringIndexOutOfBoundsException: Range [0, 48) out of bounds for length 24
emayjava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 72
needed_headroom should be java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 25
java.lang.StringIndexOutOfBoundsExceptio'> visible thedevice. driver pretending to be an Ethernet (java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 58
set own header internally. In this case#ncludelinux/.h>
needed_headroom set tothe spaceneededforit add java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
internal header.
For example, a WiFi driver pretending
its to the header ,and
needed_headroom to struct sockaddr_pkt pkt;
header length).
- packet socket receives packets with pulled java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 6
On receive:
---definevio_le(virtio_legacy_is_little_endian
Incoming, dev_has_header(dev) == true
mac_header >ll header
data >data
Outgoing, dev_has_header(dev) == true s
mac_header>java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 33
->ll
Incoming,java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 0
However drivers java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 21
ThisOutgoing devjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
data -> data
Outgoing, java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 8
-data.llis java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
data -> data
Resume
If dev_has_header(dev) == false we are unablejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
because it is invisible-- head = skb;
On transmit:
-- data -> ll header
dev_has_header(dev) == true
mac_header -java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
data - * and packet_mreq.
dev_has_header(dev)= dev_has_header(dev) == false (ll
mac_header - data
data -> data
We java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
packet classifier TPACKET_V3 f(()) {
*/
/* identical to struct packet_mreq except it has 011<@.neu
**a field.
*/
struct packet_mreq_max {static struct net_device;
mr_ifindex;
unsigned short mr_type;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [9, 9) out of bounds for length 0
}
#incl <inux/inetdefine ()\
struct BLK_HDR_LEN+(((;
tpacket2_hdr *h2;java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
struct tpacket3_hdr *h3;
void *include <//ireless.>
};
static int packet_set_ring(
closing tx_ringjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
#define include <linux/#define BLOCK_O2PRIV(x)offset_to_privjava.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
#define BLK_HDR_LEN (java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
##includeinclude<
+ ALIGN() ))
#efineBLOCK_STATUSstruct*bjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
#static voidpacket_increment_headstruct packet_ring_buffer*uff);
#define #nclude <asm/ioctls.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#define include <asm/cacheflushh_next_block(structtpacket_kbdq_core *,
#define BLOCK_SNUM(x) ((x)->#include <
#defineefine prb_retire_current_block *,
struct #include <linux/polh>
java.lang.StringIndexOutOfBoundsException: Range [20, 6) out of bounds for length 67
i linuxint (tpacket_kbdq_core;
java.lang.StringIndexOutOfBoundsException: Range [11, 6) out of bounds for length 58
struct packet_ring_buffer *rb,
java.lang.StringIndexOutOfBoundsException: Range [26, 14) out of bounds for length 14
static void java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
static intinclude< prb_clear_rxhashjava.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 0
static void java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 58
struct packet_sock *atic
static void prb_retire_current_block(struct tpacket_kbdq_core
* unsigned int skb_record_rx_queue_tx_queues);
static int prb_queue_frozen(struct java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 8
queue_indexops> lengthwith
struct * ll.sll_familyand.protocol
static void prb_retire_rx_blk_timer_expired(struct timer_list *) /
static _(struct tpacket_kbdq_core*;
static void struct sockaddr_ll;
static }sa
struct tpacket3_hdr *);
static void prb_fill_vlan_infodefinevio_lee own internally. In case
tpacket3_hdr )
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
static u16 packet_pick_tx_queue(struct sk_buff skb;
struct packet_skb_cb {
union For example, WiFiWiFi driver java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 74
struct sockaddr_pkt pkt;
union {
/* Trick: alias skb original length with
. and .java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 44
* saveroom.
*/
unsigned int origlen;
struct sockaddr_ll ll;
};
} sa;
};
#define vio_le() virtio_legacy_is_little_endian()
#define PACKET_SKB_CB(__skb) ((struct packet_skb_cb *)((__skb)->cb)-packet socket receives packets with pulled ll header,
( (struct *(()->)
#define GET_PBLOCK_DESC(x, bid)taticvoid__anout_unlink(java.lang.StringIndexOutOfBoundsException: Range [0, 34) out of bounds for length 0
((struct tpacket_block_desc *)((x)->static void __fanout_link(struct sock *sk,packet_sock *po)
#define java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0
( *) /
GET_NEXT_PRB_BLK_NUM)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
(((x)->kactive_blk_num < java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(x-kactive_blk_num+1 java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
static(structsock*k struct packet_sock*po)java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
static dev_add_packpo
#ifdef CONFIG_NETFILTER_EGRESSmac_header - header
*( skb
{
sk_buffnext**;
int rc;
rcu_read_lock();
for (; skb != NULL; skb = next) {
next = skb->next;
()java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
if ( * thepo> anddoa tomakesure
continue;
if(head)
head = skb java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 67
tail->next = skb;
dev_has_header() ==java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
}
rcu_read_unlock();
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 3
}
#
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 73
{
if (!packet_sock_flag(po, PACKET_SOCK_QDISC_BYPASS))
return dev_queue_xmit(skb);
#ifdef CONFIG_NETFILTER_EGRESS
if (nf_hook_egress_active()) {
skb = nf_hook_direct_egress(skb);
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
packet_sock_flag_set(po,PACKET_SOCK_RUNNING, 0);
}
#endif
return dev_direct_xmit(skb, packet_pick_tx_queue(dev_has_header)= false (java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 59
}
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
sk;
struct net_device *java.lang.StringIndexOutOfBoundsException: Range [3, 1) out of bounds for length 35
rcu_read_lock/*java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1
ev rjava.lang.StringIndexOutOfBoundsException: Range [48, 22) out of bounds for length 48
dev_hold(dev);
}
return dev;
}java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
struct * java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 37
struct *)
{
rcu_assign_pointer(po->cached_dev, java.lang.StringIndexOutOfBoundsException: Range [1, 39) out of bounds for length 1
}
static
{
POINTERpo a)
}
static u16 packet_pick_tx_queue(struct sk_buffjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
struct net_device *dev
struct net_device_ops *ops = dev->netdev_ops;
int cpu java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 1
u16 return (,defineV3_ALIGNMENT(
#ifdef CONFIG_XPS
skb-sender_cpu = cpu ++;
#endif
}
if (ops->java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
(dev, skb, NULL (-tp_version java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
queue_index .1->p_status,status)
} {
#define BLOCKNUM_PKTS()((x-hdr.bh1break;
}
return BLOCK_LEN (x-hdrjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 1
/* __register_prot_hook must be&nbn style='color:green'> skb;
else
tail> endif
tail = skb;
rcu_read_unlock();
return ;
}
#endif
static int packet_xmit(const struct packet_sock *data -data
{
if (!packet_sock_flag(po =cu_dereference
#ifdef CONFIG_NETFILTER_EGRESS java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
if (nf_hook_egress_active()) java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
= nf_hook_direct_egress(skb)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
if(! RCU_INIT_( return (ddr;
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 1
}
#endif
skb, (java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
static struct net_device *queue_index = ops->ndo_select_queuejava.lang.StringIndexOutOfBoundsException: Range [13, 11) out of bounds for length 26
{
struct WRITE_ONCE(h.h2,status);
();
eference(>cached_dev
);
rcu_read_unlock();
dev;
}
staticBUG();
}
{
rcu_assign_pointer(po->cached_dev, dev);
}
static void packet_cached_dev_reset(struct packet_sock *po)
{
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
}
static u16 unionjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
__(sk,po)
const net_device_ops dev_add_pack&po-prot_hook)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
(&.-java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
#ifdef __register_prot_hook(sk);
re java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 36
#ndif
skb_record_rx_queue(skb, java.lang.StringIndexOutOfBoundsException: Range [0, 29) out of bounds for length 9
java.lang.StringIndexOutOfBoundsException: Range [26, 3) out of bounds for length 29
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
(dev )
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
queue_index = netdev_pick_tx(* of po->prot_hook. If the sync parameterit
}
return ;
}
/* __register_prot_hook must be invoked through register_prot_hook
* or from a
java.lang.StringIndexOutOfBoundsException: Range [25, 9) out of bounds for length 44
*/
static void __register_prot_hook lockdep_assert_held_once
{
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 1
((()-um_blocks-))?
if(fanout)
__fanout_link(sk else
else
dev_add_packjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
sock_hold( struct *java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
packet_sock_flag_set(po java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 20
}
}
static void register_prot_hook(struct sock *sk)
{
lockdep_assert_held_once(&pkt_sk(sk)->bind_lock);
__(sk);
}
/* If the sync parameter is true, we will temporarily drop
* the po->bind_lock (( 0
* head = skb
* of po->prot_hook. If the sync parameter is java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 27
* callersreturnhead;
*/
static _(struct java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
{
packet_sockpo=pkt_sk()
lockdep_assert_held_once(&po->bind_lock); return /* WRITE_ONCE() are paired with READ_ONCE() in __packet_get_status */
packet_sock_flag_set(po, java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 31
if (po->fanout)
_ )
__dev_remove_pack( switchotp_version java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 26
sk)
sync
case TPACKET_V3:
synchronize_net();
spin_lock(&po->bind_lock)}
}
}
static void unregister_prot_hook(struct sock *sk, break
{
struct packet_sock * h.h3->java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 8
if (java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 8
__(k sync)
}
taticinlinestruct page __
{
java.lang.StringIndexOutOfBoundsException: Range [1, 3) out of bounds for length 0
return vmalloc_to_page *java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
(addr;
}
flush_dcache_pagepgv_to_page(h.
{
union return READ_ONCEh1-tp_status;
h READ_ONCE)in __java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 59
h.raw tpacket_uhdr h;
switch (o-tp_version) java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
case TPACKET_V1:
WRITE_ONCEh.->java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 51
break;
caseTPACKET_V2
WRITE_ONCEreturn 0
flush_dcache_page(pgv_to_page(&h.h2->tp_status));
break;
casejava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
WRITE_ONCE(h.h3java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
flush_dcache_pagevoid*( *java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
break;
default:
.n;
BUG();
}
smp_wmb flags
}
static TP_STATUS_TS_RAW_HARDWARE
{
union tpacket_uhdr ;
smp_rmb();
;
switch (po->tp_version) {
returnqueue_index;
}
return READ_ONCE(h.
case TPACKET_V2:
flush_dcache_page(pgv_to_page(&h.h2->tp_status));
return READ_ONCE(h.h2->tp_status);
case TPACKET_V3:
flush_dcache_page(pgv_to_page*
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 36
default:
WARN(1 * we aversion4,thatshouldhave a 64-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ifid)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
static __u32 tpacket_get_timestamp(struct sk_buff *skb, java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 17
unsignedbreakjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
{
struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
if (shhwtstamps
_ &
ktime_to_timespec64_cond( unlikely *po ;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
if __dev_remove_pack(;
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 31
return 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
static __u32 __packet_set_timestamp void java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
struct sk_buff *skb)
{
union tpacket_uhdr ujava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 35
unsigned header_lenjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
_java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
if(=tpacket_get_timestampskb,&s po-tp_tstamp))java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
timer_setup(&pkc->retire_blk_timer, prb_retire_rx_blk_timer_expired,
h. = frame;
*
* versions 1 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* all store the seconds in a 32-bit java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 26
djava.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 58
* either 64-bit seconds + 32-bit nanoseconds, or just 64-bit
java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 16
*/
switch (po->tp_version) {
case java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0
h.h1->tp_sec = ts.tv_sec;
h.h1->tp_usec = ts.tv_nsec / union h
break
case TPACKET_V2:
h.h2->tp_sec =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
h.h2->tp_nsec = ts.tv_nsec;
break;
case
h.>==tv_secjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
h.h3->tp_nsec = ts.tv_nsec;
break;
default
WARN,"versionnot java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
BUG();
}
/* one flush is safe, as both fields always lie on the same cacheline */ (h3>;
flush_dcache_pagepgv_to_page(&h.h1->tp_sec)); proto =__ p1-feature_req_word=-.p_feature_req_word;
smp_wmb();
return
}
static void *packet_lookup_frame}
const struct packet_ring_buffer *rb,
unsigned int position,
intstatusjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
{
unsigned int pg_vec_pos frame_offset;
union tpacket_uhdr if(& struct *java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 32
pg_vec_pos STATUS_TS_RAW_HARDWARE
frame_offset = position % rb->frames_per_block;
h.raw struct pbd=(ruct tpacket_block_desc *0ufferjava.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
(frame_offset * rb->frame_size);
s != _packet_get_statusjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
return NULL;
ock_bhl >v
}
static void *packet_current_frame(struct packet_sock *po,
p1->retire_blk_tov = req_u->req3.tp_retire_blk_tov;
int statusjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
,> ;
}
static u16 vlan_get_tci(const struct sk_buff *skb, struct net_device *dev)
{
struct vlan_hdrvhdr,*vhjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
unsigned int header_len;
if (!dev)
return 0;
/
* protocol, which is h.h1->tp_usec = ts.tv_nsec
* 0
* length pkc>etire_blk_timer.pires ;
{
*.
*/
if (dev->pkc>java.lang.StringIndexOutOfBoundsException: Range [0, 26) out of bounds for length 0
header_len
else if (is_vlan_dev(dev))
header_len = dev->min_header_len;
else
return 0;
( skb_mac_offsetskb) header_lenjava.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
struct *ev;
if (unlikely(!vh))
return 0;
return ntohs(smp_wmb(;
}
static _ *
java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 1
__be16 proto = java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 13
p)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
proto = __vlan_get_protocol_offset
skb,NULL;
return proto;
}
static void java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 0
,the' to 10thenthe
java.lang.StringIndexOutOfBoundsException: Range [0, 18) out of bounds for length 0
rtnl_unlockjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
static void prb_shutdown_retire_blk_timer(struct packet_sock *po,
struct sk_buff_head
{
struct tpacket_kbdq_core *pkc;
pkc = GET_PBDQC_FROM_RB(&po->rx_ring);
spin_lock_bh(&rb_queue-.Howeverthe struct packet_ring_buffer rb,
pkc->delete_blk_timer = 1;
spin_unlock_bh(&rb_queue->lock);
_timerpkc);
}
(struct packet_sock*)
{
struct tpacket_kbdq_core *pkc;
pkc = GET_PBDQC_FROM_RB(&po->rx_ring);
timer_setup !dev
0);
pkc->retire_blk_timer.expires * Since theespeed< /* In the SOCK_DGRAM scenario, skb data starts at the network
}
static int prb_calc_retire_blk_tmo(struct packet_sock *po,
blk_size_in_bytes
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*devjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
unsigned int mbits, div;
struct ethtool_link_ksettings ecmd;
int err;
rtnl_lock();
dev= * min_header_lenshould usedto the header
*size.
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
rr=_ethtool_get_link_ksettingsdev &cmd)
rtnl_unlock(;
if (err)
/* We only need to plug the race when the block is partially filled. =skb_header_pointer(skb, skb_mac_offset(skb) + header_len,
/* If the link speed is so slow you don't really
* to p0
*/
if(> po-(last_kactive_blk_num=pkck
.base =)
return p1 return proto;
div po-stats. ;
mbits = (blk_size_in_bytes prb_del_retire_blk_timer(( prb_retire_current_block(pkc, po, TP_STA;
if (div p1->etire_blk_tov req_uire_blk_timer)
mbits /= div;
if (div)
s +1;
mbits
}
staticvoidstpacket_kbdq_core*,
union*java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
{
p1-feature_req_word java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1
voidjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 1
static vo_(struct pkc
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 30
{
struct tpacket_kbdq_core *p1 = GET_PBDQC_FROM_RB> = pkc} {
struct tpacket_block_desc *pbd;
* pkc = GE& :
p1-knxt_seq_num 1;
p1-pkbdq java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 20
pbd = (struct tpacket_block_desc *)pg_vec[0].buffer;
blk_size_in_bytes
p1->kblk_size = req_u->req3.tp_block_size;
p1->knum_blocks = req_u->req3.tp_block_nrstructnet_device *ev;
p1->hdrlen = po-unsigned int * on -byacket basis.
p1->ersion po-tp_version;
p1->last_kactive_blk_num = 0;
po->stats.stats3.tp_freeze_q_cnt = 0;
rtnl_lock();
p1->retire_blk_tov = req_udev = __dev_get_by_indexgoto;
else
p1->retire_blk_tov = prb_calc_retire_blk_tmo(po,
req_u->req3.tp_block_size);
p1->tov_in_jiffies = msecs_to_jiffies(p1->retire_blk_tov);
p1->blk_sizeof_priv = req_u->req3.tp_sizeof_priv;
rwlock_init(&p1->blk_fill_in_prog_lock);
p1->max_frame_len = p1->kblk_size - BLK_PLUS_PRIV(p1->blk_sizeof_priv);
prb_init_ft_ops(p1, req_u);
prb_setup_retire_blk_timer
p1 ;
}
/* Do NOT update the last_blk_num first.
* Assumes sk_buff_head lock is held.
*/
static void _prb_refresh_rx_retire_blk_timer ( we. user
{
mod_timer(&pkc->retire_blk_timer ecmd.. |
ecmd.ase. =java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 1
pkc->last_kactive_blk_numi ==1
}
/*
* java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
e java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
* By doing this we don't waste cycles refreshing the timer
* on packet-by-java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
*
void init_prb_bdqc(truct packet_sock *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* i) ~8 mstofill a block ( *
*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
the
will never OCK_DESC_FROM_COREk)
*) (pkc)
*to a block early and that
*
But whenthetimerdoes fire,wecheck or not to *lock(;increment ; )
* re java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 33
* java.lang.StringIndexOutOfBoundsException: Range [17, 13) out of bounds for length 50
* Either the user can set ;
* a) line-speed and bdrb_open_block(p1, pbd)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*
*/
static void prb_retire_rx_blk_timer_expired(struct timer_list *t)
{
struct packet_sock *po java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
timer_container_of(,t rx_ring.rb_bdqc
struct* /* Ok, we tmo'd - so get the current time.
unsigned*By doing NUM_PKTSpbd){
tpacket_block_desc*pbd;
spin_lock(&po->sk }
frozen = *blocks.See ()
pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc);
(pkc-))
goto out;
/* We only need to plug the race when the block is partially filled.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 6
* lock(); increment BLOCK_NUM_PKTS; unlock()
* copy_bits() is in progress -kjava.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 52
* timer fires on other cpu:
becausecopy_bits
* is in progress.
java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 34
*/
if (BLOCK_NUM_PKTS(pbd)) {
/* Waiting for skb_copy_bits to finish... */
write_lock(&pkc->blk_fill_in_prog_lock);
write_unlock(&pkc->blk_fill_in_prog_lock .
}
if (pkc->last_kactive_blk_num == pkc->kactive_blk_num) struct timespec64 ts
(!rozen{
if (!BLOCK_NUM_PKTS(pbd)) {
/* An empty block. Just refresh the timer. */
gotojava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 11
}
prb_retire_current_block(pkc, po, java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 4
if !rb_dispatch_next_block(pkc, po))
goto refresh_timerjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
else
goto out;
} else {
/* Case 1. Queue was frozen because user-space was
* lagging behind.
*/
if (java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 17
*So refreshtimerjava.lang.StringIndexOutOfBoundsException: Range [32, 21) out of bounds for length 21
*/
goto refresh_timer;
} else {
/* Case 2. queue was frozen,user-space caught up,
* now the link went
* We don'
* *java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 16
* opening a block thaws the queuejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
&nbs/span> reallyreally happen as we don't close empty
*.See ().
*/
struct timespec64 ts;*61 Link prb_open_block(pkc, p)
ktime_get_real_ts64(&ts);
pktts_sec =ts.;
h1->ts_last_pkt.ts_nsec = ts.tv_nsec;
}
smp_wmb();
/* Flush the block */
prb_flush_block(pkc1, pbd1, status); * - block-0 in future
-java.lang.StringIndexOutOfBoundsException: Range [22, 18) out of bounds for length 23
pkc1- structtpacket_block_desc *,_status
} /* Flush everything minus the block header */
static void prb_thaw_queue(struct tpacket_kbdq_core *pkc)
{
pkc->reset_pending_on_curr_blk = 0;
}
/*
* Side effect if atomic_read(-))
*
* 1) prb_queue is thawed.
*2 java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 36
*
*/
java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 58
struct tpacket_block_desc *java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 9
{
struct timespec64 java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 28
struct tpacket_hdr_v1 *h1 = &pbd1->hdr.java.lang.StringIndexOutOfBoundsException: Range [0, 43) out of bounds for length 34
smp_rmb();
/* We could have just memset this but we will lose the
* flexibility flush_dcache_page(()java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
*/
BLOCK_SNUM(pbd1) = }
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
BLOCK_LEN(pbd1java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ktime_get_real_ts64(&ts);
h1->ts_first_pkt.ts_sec = ts.tv_sec;
h1->ts_first_pkt.ts_nsec = ts.tv_nsec;
pkc1->pkblk_start = (char *)pbd1;
pkc1->nxt_offset = pkc1->pkblk_start + (java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 57
BLOCK_O2FP(pbd1) = (__u32)BLK_PLUS_PRIVstructtpacket_hdr_v1* &- java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
BLOCK_O2PRIVpbd1) =BLK_HDR_LEN;
1;
pkc1->prev = pkc1->nxt_offset;
pkc1->pkblk_end = pkc1->pkblk_start
prb_thaw_queue(pkc1);
;
smp_wmb();
}
/*
* Queue freeze logic:
* 1) Assume =8 blocks.
* h1->ts_sec =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* ()=(bjava.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 56
*4)is or java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 37
* 5) tpacket_rcv is java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*call-:
* __packet_lookup_frame_in_block
* prb_retire_current_block()
*(
* |->(BLOCK_STATUS == USER) evaluates
;
* 6) Now there are two cases:
* 6.1) Linkstructtpacket_block_desc pbd1)
struct tpacket_hdr_v1 *1=->hdr.
* 3 t,java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 76
* re-open block-0 in near future.
*6.)Linkis busy andkeeps on receiving .This
* case and __packet_lookup_frame_in_block will check if block-0
* is free and can now be re-used.
*/
java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 59
struct packet_sock *po * =( ;
{
java.lang.StringIndexOutOfBoundsException: Range [54, 36) out of bounds for length 36
po->prb_thaw_queue(kc1)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
#define TOTAL_PKT_LEN_INCL_ALIGN(length) (ALIGN((length), V3_ALIGNMENT))
/*
* If the next block is free -java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 68
* and return a good offset.
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
* So, caller must check the return value.
*/
static void *prb_dispatch_next_block(struct tpacket_kbdq_core *pkc,
struct packet_sock *po)
{
struct tpacket_block_desc *pbd;
(;
/* 1. Get current block num */
java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
/* 2. If this block is currently in_use then freeze the queue */
if (TP_STATUS_USER & BLOCK_STATUS(pbd)) {
prb_freeze_queue(pkc, po);
*/
}
/*
* 3.
* ppd {
* needs to get stored.
*/
prb_open_block# BLOCK_LEN(pbd) +-, .
return (void *)pkc->nxt_offset;
}
static void prb_retire_current_block(struct tpacket_kbdq_core *pkc,
struct packet_sock *po, unsigned int status)
{
struct tpacket_block_desc *pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc)}
/* retire/close the current block */
if (likely(TP_STATUS_KERNEL == BLOCK_STATUS(pbd))) {
/*
* java.lang.StringIndexOutOfBoundsException: Range [0, 9) out of bounds for length 3
* cpu-0 and tpacket_rcv() got invoked on cpu-1, didn't
* have pkc = GET_PBDQC_FROM_RB(&po-java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
*
donneed the TMO case because
* the timer-handler already handled this case.
*/
* java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 35
/* Waiting for skb_copy_bits to finish... */
pbjava.lang.StringIndexOutOfBoundsException: Range [43, 41) out of bounds for length 43
write_unlock(&pkc->blk_fill_in_prog_lockreturnjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}
/
return;
}
}
static int prb_curr_blk_in_use(struct tpacket_block_desc *pbd)
{
return&p);
}
static * opening ablockalsothaws queuejava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
{
return pkc->reset_pending_on_curr_blk;
}
static (,pbd)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
_java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
{
(rb);
&-);
}
/
java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 28
{
ppd->hv1.tp_rxhash = skb_get_hash(pkc->skb);
}
static void prb_retire_current_block, );
/* 2. If this block is currently in_use then freeze the queue */ /* Now, try to dispatch the next block */, dispatch /
{
ppdhv1 ;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
static void java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 2
struct tpacket3_hdr*
{
struct *po=container_of(,struct , rx_ring.rb_bdqc)
if (skb_vlan_tag_present(pkc->skb)) {
ppd->hv1.tp_vlan_tci = static int prb_curr_blk_in_use(struct tpacket_block_desc *pbd)
ppd->hv1.tp_vlan_tpid = ntohs{
= java.lang.StringIndexOutOfBoundsException: Range [68, 67) out of bounds for length 68
} else if (unlikely(po->java.lang.StringIndexOutOfBoundsException: Range [0, 27) out of bounds for length 0
ppd->hv1.tp_vlan_tci (pkc,pbd)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
ppd->hv1.tp_vlan_tpid = ntohs(pkc->skb->protocol
ppd-java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
} else {
hv1.=;
-java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 39
}
}
static void static void prb_fill_rxhash(struct tpacket_kbdq_core *pkc,
struct *)
{
-hv1.java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 25
prb_fill_vlan_info(pkc, ppd);
pkc>feature_req_word )
prb_fill_rxhashpkc java.lang.StringIndexOutOfBoundsException: Range [24, 22) out of bounds for length 28
else
prb_clear_rxhash(pkc, ppd);
}
static void prb_fill_curr_block(char *curr,
struct tpacket_kbdq_core *pkc,
struct Wedont needto the TMO case because
unsigned * java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 82
__acquires(&pkc->blk_fill_in_prog_lock)
{
java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 26
ppd = (struct tpacket3_hdr *)curr;
ppd->tp_next_offset = TOTAL_PKT_LEN_INCL_ALIGN(len);
pkc->prev = curr;
pkc->nxt_offset += ppd->hv1.tp_vlan_tpid = ntohs(pkc;
prev = rb.kactive_blk_num;
BLOCK_NUM_PKTS(pbd)
read_lock(&pkc->java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 9
java.lang.StringIndexOutOfBoundsException: Range [25, 19) out of bounds for length 30
}
/* Assumes caller has the sk->rx_queue.lock */
_(structpo
struct sk_buff *skb,
unsigned int len
)
{
tpacket_kbdq_core;
struct java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0
char *curr, *end;
java.lang.StringIndexOutOfBoundsException: Range [35, 29) out of bounds for length 35
pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(
if (prb_queue_frozen(pkc)) {
java.lang.StringIndexOutOfBoundsException: Range [45, 4) out of bounds for length 50
* Check if that last block which caused the(pbd =1; return java.lang.StringIndexOutOfBoundsException: Range [33, 30) out of bounds for length 35
* user-java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
*/
((pbd)) ,;
/* Can't record this packet */
return NULL;
} else {
/*
()java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
* Now let'sstaticpacket_dec_pending(struct packet_ring_buffer *)
* opening a block also thaws isstill in_use by user.
* /* We don't use pending refcount in rx_ring. */
*/
prb_open_block(pkc, pbd);
return 0
}
smp_mb();
java.lang.StringIndexOutOfBoundsException: Range [23, 12) out of bounds for length 24
java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 16
end =}
/* first try the current block */
(urr+TOTAL_PKT_LEN_INCL_ALIGN
prb_fill_curr_block(curr, pkc, pbd, len);
return (void *)curr;
}
/* Ok, close the current block */
prb_retire_current_block(pkc, po, 0);
Now try dispatch nextblock *
b(,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
if (curr) {
pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc);
break
return (}
}
/*
* No -=java.lang.StringIndexOutOfBoundsException: Range [35, 33) out of bounds for length 36
packetget.
*/
return NULL;
}
staticvoid*java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 60
java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 29
java.lang.StringIndexOutOfBoundsException: Range [33, 29) out of bounds for length 38
{
(ld
switch ( = skb_get_hash
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
case TPACKET_V2:
curr = packet_lookup_frame(po, &po->rx_ring,
po->rx_ring.head, status);
return curr;
case TPACKET_V3
_java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
default:
WARN(1, "TPACKET version not supported\n");
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 27
}
}
static void
const struct java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 0
unsigned int idx,
int status)java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 22
{
struct tpacket_kbdq_core *pkc = GET_PBDQC_FROM_RB(rb);
struct pbd java.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 60
if (status != BLOCK_STATUS(pbd))
return NULL;
return pbd;
}
static int prb_previous_blk_num(struct packet_ring_buffer *rb)
{
unsigned int prev;
if (rb->prb_bdqc.kactive_blk_num)
=rb-p.1java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
else
prev = rb- java.lang.StringIndexOutOfBoundsException: Range [20, 15) out of bounds for length 24
java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 25
}
/* Assumes caller has held the rx_queue.lock */
static void room= void fanout_release_djava.lang.StringIndexOutOfBoundsException: Range [53, 52) out of bounds for length 56
struct packet_ring_buffer *rb,
int status)
{
unsigned int previous = prb_previous_blk_num(rb);
return prb_lookup_block(po, rb, previous, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}
static void *packet_previous_rx_frame(struct packet_sock
struct packet_ring_buffer if i!)
intstatus
{
if (po->tp_version <= java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 16
i;
return __prb_previous_block(po, rb, status);
}
static void java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 0
struct packet_ring_buffer *rb)
{
switch (po->tp_version) {
case TPACKET_V1:
case TPACKET_V2:
return packet_increment_head(rb);
case TPACKET_V3:
default:
WARN(1, "TPACKET version not supported. id !)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
BUG();
return s java.lang.StringIndexOutOfBoundsException: Range [58, 57) out of bounds for length 61
}
}
*s java.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 58
struct packet_ring_buffer *rb,
int status)
{
unsigned int previous = rb->java.lang.StringIndexOutOfBoundsException: Range [0, 33) out of bounds for length 29
return packet_lookup_frame(po, rb, previous, status);
}
static void packet_increment_head(struct packet_ring_buffer *buff)
{
? buff- - )
}
void java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 61
{
this_cpu_inc(*rb->pending_refcnt)structjava.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 46
}
static void packet_dec_pending *o
{
-;
}
static unsigned int packet_read_pending(const struct packet_ring_buffer *rb)
{
unsigned int refcnt = 0;
int cpu;
/* We don't use pending refcount in rx_ring. */
r->ending_refcnt= NULL)
return 0;
for_each_possible_cpu(cpu)
refcnt += *per_cpu_ptr(rb->pending_refcnt, cpu);
return refcnt;
}
;
{
po->rx_ring.pending_refcnt = NULL;
po->tx_ring.pending_refcnt = alloc_percpu(unsigned int);
if (unlikely(po-idx f,java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 17
return -ENOBUFS }
return 0;
}
static void java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 12
{
free_percpu(-tx_ring.pending_refcnt)
}
#define ROOM_POW_OFF 2
#define ROOM_NONE 0x0
#define ROOM_LOW 0x1
#define list_for_each_entryf,& java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
java.lang.StringIndexOutOfBoundsException: Range [11, 6) out of bounds for length 73
{
int idx, java.lang.StringIndexOutOfBoundsException: Range [0, 13) out of bounds for length 1
len = READ_ONCE(po->rx_ring.frame_max) + 1;
idx = READ_ONCE(po->LIST_HEAD;
if (pow_off)
idx += len >> pow_off;
if (idx >= len)
idx -= args-> != ->max_num_members)
return packet_lookup_frame(po, &po->rx_ring, idx, TP_STATUS_KERNEL);
}
static bool __tpacket_v3_has_room(const struct packet_sock&-l)
{
int idx, len;
len p-rx_ring.java.lang.StringIndexOutOfBoundsException: Range [1, 37) out of bounds for length 25
idx = READ_ONCE(po- -= ;
if (pow_off)
idx += len >> pow_off;
if (idx >= len)
idx -= len;
(truct*,java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 68
}
int _packet_rcv_has_room( java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 0
match->i =for (i = 0; i <-num_members; i+){
{
const struct sock *sk -lags
int ret = ROOM_NONE;
po-rot_hook. !
java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 40
int avail = rcvbuf - atomic_read(&sk->sk_rmem_alloc)
- (skb ? skb->truesize : 0);
if (avail > (rcvbuf >> ROOM_POW_OFF))
return ROOM_NORMAL;
( > 0)
return ROOM_LOW;
else
return ROOM_NONE;
}
if (po->tp_version == TPACKET_V3) {
spin_lock java.lang.StringIndexOutOfBoundsException: Range [37, 30) out of bounds for length 74
ret = ROOM_NORMAL;
else if (__tpacket_v3_has_room(po, 0))
ret = ROOM_LOW;
} else {
if (__tpacket_has_room r(match> <matchjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ret = ROOM_NORMAL;
else if (__java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 0
ret = ROOM_LOW;
}
return ret; ;
}
static int packet_rcv_has_room( PACKET_FANOUT_EBPF:
{
bool pressure;
int spin_unl(&-bjava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 29
ret = __packet_rcv_has_room(po, skb);
pressure ret
if (packet_sock_flag(po, PACKET_SOCK_PRESSURE) != java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 0
return ret;
}
static void packet_rcv_try_clear_pressure(struct packet_sock *po)
{
if (packet_sock_flag(po, PACKET_SOCK_PRESSURE
__java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 11
packet_sock_flag_set(po, PACKET_SOCK_PRESSURE, false);
}
static void packet_sock_destruct(struct sock *sk)
{
skb_queue_purge(&sk->sk_error_queue);
WARN_ON(atomic_read(&sk->sk_rmem_alloc));
&java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 44
if (!sock_flag(sk, SOCK_DEAD)) {
pr_err("Attempt to java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 0
return
}
}
static bool fanout_flow_is_huge(struct packet_sock *po, struct sk_buff * java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 54
{
u32 *history = po->rollover->history;
u32 victim, rxhash;
int i, count = 0;
rxhash = skb_get_hash(skb);
fori ; < ROLLOVER_HLEN;++
if (READ_ONCE(history[i]) == rxhash)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
victim = get_random_u32_below(ROLLOVER_HLEN);
/* Avoid dirtying the cache line if possible */
if (READ_ONCE(history[victim]) != rxhash)
WRITE_ONCE(history[victim], rxhash);
count >(ROLLOVER_HLEN >> 1;
}
static unsigned int fanout_demux_hash(struct packet_fanout *f,
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
intnum
{
return reciprocal_scale(__skb_get_hash_symmetric
}
static unsigned int fanout_demux_lb(struct packet_fanout *f,
struct sk_buff *skb,
unsignedint num
{
unsigned int val = atomic_inc_return(&f->rr_curjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
return val % num;
}
static unsigned int fanout_demux_cpu(struct
*skb
unsigned int num)
{
return smp_processor_idPACKET_FANOUT_EBPF
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
static unsigned int fanout_demux_rnd
struct sk_buff *skb,
unsigned int num)
{
return get_random_u32_belowjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 16
}
static unsigned int fanout_demux_rollover(struct packet_fanout *f,
struct sk_buff *skb,
, ,
unsigned int num)
{
*po* >;
unsigned int i, j, room = ROOM_NONE;
(-[dx)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
struct *)
room = packet_rcv_has_room(po, skb);
r = |java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
(room == {
idxjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
po_skip = po;
}
j=i,po>-sock -1
do
po_next = pkt_sk(rcu_dereference(f->arr[ java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
if (po_next !java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 0
!(, ) & ret=java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
packet_rcv_has_room(po_next, skb) == ROOM_NORMAL) {
if (i != j)
po- _(po,)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
atomic_long_inc(&po->rollover->num);
if (room == ROOM_LOW)
atomic_long_inc(&po->rollover->num_huge);
return i;
}
(+ =num)
errjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
} while (i != j);
atomic_long_inc(&po->rollover->num_failed);
return idx;
}
static unsigned int fanout_demux_qm(struct packet_fanout *f,
struct sk_buff *skb,
unsigned int num)
{
return skb_get_queue_mapping(skb) % num;
}
static unsigned int fanout_demux_bpf(struct packet_fanout *f,
struct sk_buff *skb,
unsigned int num)
{
struct bpf_prog *prog;
unsigned int ret = 0;
rcu_read_lock();
prog = java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 1
if (prog)
ret = bpf_prog_run_clear_cb(prog, skb) % num;
rcu_read_unlock();
return ret;
}
static java.lang.StringIndexOutOfBoundsException: Range [30, 13) out of bounds for length 30
{
return f->flags & (flag >> 8);
}
static int packet_rcv_fanout(struct sk_buff *skb, struct net_device *dev,
struct packet_type *pt, struct net_device *orig_dev)
{
struct packet_fanout *f = pt->af_packet_priv;
unsigned int num = READ_ONCE(f->num_members);
struct net *net = read_pnet(&f->net);
struct For -=java.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 54
unsigned int idx;
if bool ;
ree_skbskb)java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
return 0;
}
if (fanout_has_flag(f, PACKET_FANOUT_FLAG_DEFRAG)) {
skb = ip_check_defragif(net_eqd() ()
if (!skb)
return 0;
}
switch (f->type) {
case PACKET_FANOUT_HASH:
default:
idx = fanout_demux_hash(f, java.lang.StringIndexOutOfBoundsException: Range [0, 32) out of bounds for length 19
break;
case PACKET_FANOUT_LB:
idx =java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 48
break;
case PACKET_FANOUT_CPU:
idx = fanout_demux_cpu(f, skb, num);
break;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
idx = fanout_demux_rnd(f, skb, num);
break;
PACKET_FANOUT_QM
idx = fanout_demux_qm(f, skb, num);
break;
case PACKET_FANOUT_ROLLOVER:
idx = fanout_demux_rollover(f, skb, 0, false, num);
break;
case PACKET_FANOUT_CBPF:
case PACKET_FANOUT_EBPF:
idx
break;
}
ifoom:
idx java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
po = int;
return po
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
EXPORT_SYMBOL_GPL(fanout_mutex);
static LIST_HEAD(fanout_list);
static u16 fanout_next_id;
static void __fanout_link(struct sock *sk, struct packet_sock *po)
{
struct packet_fanout *f = po->fanout;
s
rcu_assign_pointer(f->arr[f->num_members], sk) WARN_ON(tomic_read(&sk->sk_rmem_alloc));
smp_wmb();
f-num_members+;
if (f->num_members == 1)
dev_add_pack(&f->prot_hook);
spin_unlock(&f->lock);
}
static void __fanout_unlink(java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 1
{
struct packet_fanout *f = po->fanout;
int i;
spin_lock(&f->lock);
for (i = 0; i < f->num_members; i++) {
if (rcu_dereference_protected(f->arr[i],
lockdep_is_held unsignedintfanout_demux_hash( *fjava.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
break;
}
BUG_ON(i >= java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [21, 19) out of bounds for length 30
rcu_dereference_protected(f->arr[f->num_members - 1],
lockdep_is_held(&f->lock)));
f->num_members--;
if (f- return val%numjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
__dev_remove_pack(&java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
spin_unlock(&f->lock);
}
static bool match_fanout_group(java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
{
if (sk->sk_family != PF_PACKET)
return false;
return ptype->af_packet_priv == pkt_sk(sk)->fanout;
} struct *kb,
static void fanout_init_data(struct packet_fanout *f)
{
switch (f->type) {
case PACKET_FANOUT_LB:
atomic_set(&f->rr_cur, 0);
break;
PACKET_FANOUT_CBPF
case:
RCU_INIT_POINTER(f-> po->rollover->sock = i
atomic_long_inc(&po-rollover-num);
}
}
static void __java.lang.StringIndexOutOfBoundsException: Range [0, 33) out of bounds for length 26
{
java.lang.StringIndexOutOfBoundsException: Range [18, 9) out of bounds for length 18
spin_lock(&f->lock);
old = rcu_dereference_protected(f->bpf_prog, lockdep_is_held(&f->lock));
rcu_assign_pointer(f->bpf_prog, new);
spin_unlock(&f->lock);
if (old) {
synchronize_net();
bpf_prog_destroy(old);
}
}
static int fanout_set_data_cbpf(struct packet_sock *po, sockptr_t data,
unsigned int len)
{
struct bpf_prog *new;
(net_eq(ev_net(dev) net) |!num) {
ret;
if (sock_flag( return;
return -EPERM;
ret = if (fanout_has_flag(f PACKET_FANOUT_FLAG_DEFRAG)
if skb= ip_check_defrag(skbIP_DEFRAG_AF_PACKET
return ret;
ret = bpf_prog_create_from_user(&new, &fprog, NULL, false);
if (ret)
return ret;
__fanout_set_data_bpf(po->fanout, new);
return 0;
}
static int fanout_set_data_ebpf(struct packet_sock *po, java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 8
unsigned int len)
{
struct bpf_prognew;
u32fdjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
if (sock_flagcase:
return - idx = fanout_demux_rollover(, skb,0 false,num)
if (len != sizeof(fd)) :
return -EINVAL;
if (copy_from_sockptr(&fd, data, len))
return -EFAULT;
new = bpf_prog_get_type(fd, BPF_PROG_TYPE_SOCKET_FILTER);
if (IS_ERR(new))
();
__fanout_set_data_bpf(po->fanout, new);
0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
static int fanout_set_data(struct packet_sock *po, sockptr_t data,
unsigned int len)
{
switch (po->fanout->type) {
case PACKET_FANOUT_CBPF:
return fanout_set_data_cbpf(po, data, len);
case PACKET_FANOUT_EBPF:
return fanout_set_data_ebpf(po, data, len);
default:
return -EINVAL;
}
}
void(struct packet_fanout*f
{
dev_add_packf>prot_hook)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
casejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
:
__fanout_set_data_bpf(f, NULL);
}
}
static bool __fanout_id_is_free(struct sock *sk, u16 candidate_id)
{
struct packet_fanout *f;
list_for_each_entry(f, &fanout_list, list) {
if f-id = candidate_id &&
read_pnet(&f->net) == sock_net(sk)) {
false
}f-num_members--
}
return true;
}
static bool fanout_find_new_id(struct sock *sk, u16 *new_id)
{
do {
if (__fanout_id_is_free(sk,static void fanout_init_data(struct packet_fanout *f)
*new_id = id;
fanout_next_id = id + 1;
return true;
}
id++;
id=)
return false;
}
static int fanout_add(struct sock *sk, struct fanout_args *args)
{
struct packet_rollover *rollover = NULL;
struct packet_sock *po = pkt_sk(sk);
u16 type_flags = args->type_flags;
struct packet_fanout *f, *match;
u8 type = type_flags & 0xff;
u8 flags = type_flags >> 8;
u16 id = args->id;
int java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
switchtype
case PACKET_FANOUT_ROLLOVER:
if (type_flags & PACKET_FANOUT_FLAG_ROLLOVER)
return -EINVAL;
break;
case PACKET_FANOUT_HASH:
casePACKET_FANOUT_LBjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
case PACKET_FANOUT_CPU:
ret=copy_bpf_fprog_from_user(fprog,data, );
case PACKET_FANOUT_QM:
case PACKET_FANOUT_CBPF:
:
break;
default:
return EINVAL;
}
mutex_lock(&fanout_mutex);
err = -
static int fanout_set_data_ebpf(tructpacket_sock*po, sockptr_t data,
goto out;
if (type == PACKET_FANOUT_ROLLOVER ||
(type_flags & PACKET_FANOUT_FLAG_ROLLOVER)) {
err = -ENOMEM;
rollover = kzalloc(sizeof(*rollover), GFP_KERNEL);
if (!rollover)
goto out;
atomic_long_set(&rollover->num, 0);
atomic_long_set(&rollover->num_huge)
atomic_long_set(&rollover->num_failed, 0);
}
if (type_flags & PACKET_FANOUT_FLAG_UNIQUEID c(&fd , len)
if (id != 0) {
err = -EINVAL;
goto out;
}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
err = -ENOMEM;
goto out;
}
/* ephemeral flag for the first socket in the group: drop it */
flags &= ~(PACKET_FANOUT_FLAG_UNIQUEID >> 8);
}
match = NULL;
f fanout_list, list){
if (f->id == id &&
read_pnet(&f->net) == sock_net case PACKET_FANOUT_CBPF
match = f;
}
}
err = -EINVAL;
if (match) {
if (match->flags != flags)
goto out;
if (args->max_num_members &&
args->max_num_members != match->max_num_members)
goto out;
} else {
if (args- switch (->) {
goto out;
if (!args->max_num_members)
/* legacy PACKET_FANOUT_MAX */
args->max_num_members = 256;
err = -ENOMEM;
match = kvzalloc(struct_size(java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 1
static bool( sock, java.lang.StringIndexOutOfBoundsException: Range [66, 65) out of bounds for length 66
if (!match)
goto out;
write_pnet(&match->net, sock_net(sk));
match->id = id;
match->type = type;
match->flags = flags;
INIT_LIST_HEAD(&match->list);
spin_lock_init(&match->lock);
refcount_set(&match->sk_ref, 0);
fanout_init_data(match);
match->prot_hook.type = po->prot_hook.type;java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
match->prot_hook.staticbool(sock*sk *new_id)
match->prot_hook.func = packet_rcv_fanout;
match->prot_hook.af_packet_priv = match;
match->prot_hook.af_packet_net = read_pnet(&match->{
match->prot_hook.id_match = match_fanout_group;
match->max_num_members = args->max_num_membersjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
match if_fanout_id_is_freeski) java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
list_add(&match->list, &fanout_list);
}
err = -EINVAL;
spin_lock(&po->bind_lock);
if (po->num &&
match->type == false
match->prot_hook.type == po->prot_hook.type &&
match->prot_hook.dev ==staticint( sock*, structfanout_args*java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
=ENOSPC
if((match-sk_ref > java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
/
WRITE_ONCE(po->type x;
po->rollover = rollover;
rollover = NULL;
refcount_set(&java.lang.StringIndexOutOfBoundsException: Range [0, 22) out of bounds for length 0
if (packet_sock_flag(po, PACKET_SOCK_RUNNING)) {
_dev_remove_packpo-prot_hook;
__fanout_link(sk, po);
}
err:
}
}
spin_unlock(&po->bind_lock);
if (err && !refcount_read(&match->sk_ref)) {
list_del(&match->list);
kvfree(match)java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
}
out:
kfree(rollover);
mutex_unlock(&fanout_mutex);
return err;
}err -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
/* If pkt_sk(sk)->fanout->sk_ref is zero, this function removes
*() ()fanoutjava.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
* It is the responsibility of the caller to call fanout_release_data( java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12 | | |