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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 * 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 f I * read java.lang.StringIndexOutOfBoundsException: Range [44, 45) out of bounds for * * : java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length * Alan Cox#internal.hjava.lang.StringIndexOutOfBoundsException: Index 21 out of bo * Alexey :Untied IPv4 stack. * Cox:Re-ommented the code * Alan Cox : Use new kernel side addressing *RobJanssen : usagejava.lang.StringIndexOutOfBoundsException: Index 36 out of boun * Dave Platt : Counter leaks caused by incorrect * interrupt locking and some slightly * dubious gcc output. Can you read TILE_ * Richard Kooijman : Timestamp fixes. * Alan Cox : New java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bou * Alan Cox : sendmsg/recvmsg * Alan Cox : Protocol setting support * Alexey Kuznetsov : Untied from IPv4 stack. * Cyrus * Chetan Loke: Implemented TPACKET_V3 block abstraction * Michal Ostrowski : Module initialization Copyright ()2011 .edu> * Ulises Alonso :include linux/h> # * Eric #include <linux.>mac_header -#include <linux/uac> * The isthat java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for * will simply#nclude</cacheflushh * >data * and packet_mreq. * Johann java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for - #include <linux/seq_f * layer. * Copyright (C) 2011,#linuxjava.lang.StringIndexOutOfBoundsException: Range [25, 22 / #define #include <linuxdata- #include <linuxjava.lang.StringIndexOutOfBoundsException: Range [0, 8) out of boun #include <linuxinclude invisible java.lang.StringIndexOutOfBoundsException: Index 34 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 #include <linux/On : #ndif #nclude linux/h> #include <linux/socketjava.lang.StringIndexOutOfBoundsException: Index 3 out of bo #include <linux/in#nclude linux/java.lang.StringIndexOutOfBoundsException: Range [0 #include <linuxjava.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bo #include device - #include <linux/if_packet.h> #nclude linux/irelessh visiblejava.lang.StringIndexOutOfBoundsException: Range [22 #include <linux/kernel.h> #include linux/.> #include <linux/slab.h> #include <linux/vmalloc.h> #include <net/net_namespace.h> #include <net/ip.h> #include < #include <linux #include njava.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds #nclude <errnoh #include <linux/timer.h> #include <linux/uaccess.h> #include <asm/ioctls.h> #include <asm/ *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds fo int; #include short; #include <linux/proc_fs.h> #include <linux/seq_file.java.lang.StringIndexOutOfBoundsException: Range [0, 26) #include <linux/poll.h> # unsigned char mr_address[AX_ADDR_LEN #}java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 #include <linux/mutex.h> #include <linux/if_vlan.h> #include <linux/virtio_net.h> #include <linux/errqueue.h> #include/* # * INET An needed_headroom shouldbe space needed to its ivoid * #include <net/inet_common.h> #endif #include <linux/bpf.h> #include <net/compat.h> #include <linux/netfilter_netdev.h> #include "internal.h" /* Assumptions: *Authors:RossBiro visible above the# BLK_PLUS_PRIV(sz_of_priv \ internally.In thiscase,its shouldbeset to the needed for it add its internal java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds fo * Alan :new lists, look nobacklogs its be Ethernet header length, set static int prb_curr_blk_in_use(struct tpacket_block_desc *); )java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20 - packet socket receives packets , java.lang.StringIndexOutOfBoundsException: Index 45 so that SOCK_RAW should push it back. On receive: ------- Incoming, dev_has_header(dev) =java.lang.StringIndexOutOfBoundsException: Range [5 mac_header -> ll header data -> data Outgoing, dev_has_header( dubious gcc llsll_family andll.rotocol order - header data -> - ll Incoming, GET_CURR_PBLOCK_DESC_FROM_COREx java.lang.StringIndexOutOfBoundsExceptio ->defineGET_NEXT_PRB_BLK_NUM)\ data > header Incoming java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for le data -> data Outgoing, dev_has_header((devjava.lang.StringIndexOutOfBoundsException: Index 0 o to us. > Resume If dev_has_header(dev) == false we are *Ulisesmac_header- header invisibleto to us. On java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0 --- java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for len dev_has_header(dev) == mac_header -> ll header java.lang.StringIndexOutOfBoundsException: Range [14, 8) out of bounds for lengt dev_has_header(dev) == false (ll header java.lang.StringIndexOutOfBoundsException: In } data -> data We =false(ll packet classifier depends mac_header-data */ /* Private packet socket structures. */ /* identical to struct packet_mreq except it has * nf_hook_egress_active{ */ struct java.lang.StringIndexOutOfBoundsException: Range [33, 29) out of bounds fo int dev_direct_xmit,(skb unsigned short mr_type; * ()011,<okecccs..> unsigned char mr_address[MAX_ADDR_LEN]; }; union tpacket_uhdr { ruct tpacket_hdr struct tpacket2_hdr *#define pr_fmt(fmt) KBUIL_MODNAME ":" fmt** longer addressfield.jav include<inux/static struct net_devicepacket_cached_dev_get(structpacket_sock*o) void *raw; }java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 *dev int closing,int java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds #define V3_ALIGNMENT (8) #define BLK_HDR_LEN} #efineBLK_PLUS_PRIVsz_of_priv ( +ALIGN( )java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for l #define BLOCK_STATUS(x) ((x)->hdrvoidrawlinux/wirelessirelessh> #definejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for leng java.lang.StringIndexOutOfBoundsException: Range [18, 7) out of bounds for lengt #define BLOCK_LEN(x) ((x)->hdr.bh1.blk_len) # struct *dev #) ((x)>offset_to_priv) struct packet_sock; static java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for lengt struct packet_type *pt, struct net_device *orig_dev)} (BLK_HDR_LEN ALIGN((z_of_priv,V3_ALIGNMENTjava.lang.StringIndexOutOfBoundsExcepti *, ) ( *uffjava.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for lengt #inclu asmage> static java.lang.StringIndexOutOfBoundsException: Range [63, 61) out of bounds fo struct packet_sock *); staticvoidstructtpacket_kbdq_corejava.lang.StringIndexOutOfBoundsException: Inde static int tpacket_rcvcv(struct sk_buff*,struct net_device *ev, static int prb_queue_frozenstruct *)java.lang.StringIndexOutOfBoundsException: Inde tatic static void *acket_previous_frame(struct packet_sock *po, struct tpacket_block_desc conststruct java.lang.StringIndexOutOfBoundsException: Ra static void /net_tstamp. static void _prb_refresh_rx_retire_blk_timer(struct tpacket_kbdq_core *); static void prb_fill_rxhash(java.lang.StringIndexOutOfBoundsException: Index 31 ou taticoid (struct tpacket_kbdq_core *java.lang.StringIndexOutOfBoundsException: Inde struct tpacket3_hdrincludeskbsender_cpu=cpu 1 static void include <net/compat struct tpacket3_hdr *); java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 static u16 java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for l struct packet_skb_cb { union s> { struct sockaddr_pkt pkt; union { with * ll. inorder * to save room. *java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6 unsigned void prb_refresh_rx_retire_blk_timer tpacket_kbdq_core *; ll }; ; }; # vio_le mayprependits header this,its struct tpacket3_hdr*) #define GET_PBDQC_FROM_RB(x) ( *) #definejava.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for ( java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for len #define GET_CURR_PBLOCK_DESC_FROM_CORE ((struct tpacket_block_desc *)((x)->pkbdq *llsll_family ll.rotocol in order # java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 from context in header java.lang.StringIndexOutOfBoundsException: Index 17 out of bo fjava.lang.StringIndexOutOfBoundsException: Range [0, 27) out of bounds for leng struct po) #ifdef (struct tpacket_block_descjava.lang.StringIndexOutOfBoundsException: Index staticstruct =()java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds { struct void __fanout_unlink *, ; int rc; rcu_read_lock(); struct sk_buff *, head = NULL, *tail for (; java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length next = skb->next;java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds skb_mark_not_on_list(skb); if (!nf_hook_egress else continue; ( head = 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 if (nf_hook_egress_active()) java.lang.StringIndexOutOfBoundsException: Index 1 ou = nf_hook_direct_egress(skb)java.lang.StringIndexOutOfBoundsException: Index 35 o 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 lengt java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 static struct net_device *queue_index = ops->ndo_select_queuejava.lang.StringIndexOutO { 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 f { __(sk,po) const net_device_ops dev_add_pack&po-prot_hook)java.lang.StringIndexOutOfBoun (&.-java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for l 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 #ndif skb_record_rx_queue(skb, java.lang.StringIndexOutOfBoundsException: Range [0, 29) java.lang.StringIndexOutOfBoundsException: Range [26, 3) out of bounds for lengt 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 lengt */ 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 sock_hold( struct *java.lang.StringIndexOutOfBoundsException: Index 28 out of boun packet_sock_flag_set(po java.lang.StringIndexOutOfBoundsException: Index 34 out o } } 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: I * callersreturnhead; */ static _(struct java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds f { packet_sockpo=pkt_sk() lockdep_assert_held_once(&po->bind_lock); return /* WRITE_ONCE() are paired with READ_ONC packet_sock_flag_set(po, java.lang.StringIndexOutOfBoundsException: Index 38 out if (po->fanout) _ ) __dev_remove_pack( switchotp_version java.lang.StringIndexOutOfBoundsException: I 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 o if (java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length __(k sync) } taticinlinestruct page __ { java.lang.StringIndexOutOfBoundsException: Range [1, 3) out of bounds for length return vmalloc_to_page *java.lang.StringIndexOutOfBoundsException: Index 18 out of (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 h.raw tpacket_uhdr h; switch (o-tp_version) java.lang.StringIndexOutOfBoundsException: Index 26 out of b case TPACKET_V1: WRITE_ONCEh.->java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds f java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for leng 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 WRITE_ONCE(h.h3java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds flush_dcache_pagevoid*( *java.lang.StringIndexOutOfBoundsException: Index 57 out 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 default: WARN(1 * we aversion4,thatshouldhave a 64-java.lang.StringIndexOutOfBoundsException: ifid)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for lengt java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 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.StringIndexOutOfBou unsignedbreakjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds fo { 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 leng return 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for len } static __u32 __packet_set_timestamp void java.lang.StringIndexOutOfBoundsException: struct sk_buff *skb) { union tpacket_uhdr ujava.lang.StringIndexOutOfBoundsException: Range [25, 24) out unsigned header_lenjava.lang.StringIndexOutOfBoundsException: Index 25 out of bou _java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 if(=tpacket_get_timestampskb,&s po-tp_tstamp))java.lang.StringIndexOutOfBoun 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 l * all store the seconds in a 32-bit java.lang.StringIndexOutOfBoundsException: Index 40 djava.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for len * either 64-bit seconds + 32-bit nanoseconds, or just 64-bit java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for leng */ switch (po->tp_version) { case java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 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 h.h2->tp_nsec = ts.tv_nsec; break; case h.>==tv_secjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for h.h3->tp_nsec = ts.tv_nsec; break; default WARN,"versionnot java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds 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 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 l { unsigned int pg_vec_pos frame_offset; union tpacket_uhdr if(& struct *java.lang.StringIndexOutOfBoundsException: Range pg_vec_pos STATUS_TS_RAW_HARDWARE frame_offset = position % rb->frames_per_block; h.raw struct pbd=(ruct tpacket_block_desc *0ufferjava.lang.StringIndexOutOfBoundsExc (frame_offset * rb->frame_size); s != _packet_get_statusjava.lang.StringIndexOutOfBoundsException: Index 0 out of b 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 l 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 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 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 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 fo p)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 3 proto = __vlan_get_protocol_offset skb,NULL; return proto; } static void java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for ,the' to 10thenthe java.lang.StringIndexOutOfBoundsException: Range [0, 18) out of bounds for lengt rtnl_unlockjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for 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 sta } 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 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, /* 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(pk 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 leng { p1-feature_req_word java.lang.StringIndexOutOfBoundsException: Index 0 out of bou java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1 voidjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 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 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 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 fo * void init_prb_bdqc(truct packet_sock *java.lang.StringIndexOutOfBoundsException: In * 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 * java.lang.StringIndexOutOfBoundsException: Range [17, 13) out of bounds for len * Either the user can set ; * a) line-speed and bdrb_open_block(p1, pbd)java.lang.StringIndexOutOfBoundsException 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 bo 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.StringIndexOutO * 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, * timer fires on other cpu: becausecopy_bits * is in progress. java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for leng */ 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 } prb_retire_current_block(pkc, po, java.lang.StringIndexOutOfBoundsException: Index if !rb_dispatch_next_block(pkc, po)) goto refresh_timerjava.lang.StringIndexOutOfBoundsException: Index 0 out of bound 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 *So refreshtimerjava.lang.StringIndexOutOfBoundsException: Range [32, 21) out of */ 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 le * opening a block thaws the queuejava.lang.StringIndexOutOfBoundsException: Index 0 ou * Thawing/timer-refresh is a smp_wmb(java.lang.StringIndexOutOfBoundsException: Inde */ prb_open_block(pkc, pbd); * } *)Increment write_lock(&-blk_fill_in_prog_lock) _prb_refresh_rx_retire_blk_timer&->)java.lang.StringIndexOutOfBoundsException: I : spin_unlock(&po->sk.sk_receive_queue.lock); } static empty block. Just refresh the timer.*java.lang.StringIndexOutOfBoundsException: struct java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for leng ,java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 1 the #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE{ u8 *start *Queue = &oskjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27 =u8 *bd1 /* Skip the block header(we know header WILL fit in 4K) */java.lang.StringIndexOutOfBoundsE start += PAGE_SIZE; long-; for (; start < end; start += PAGE_SIZE) flush_dcache_page(pgv_to_page(start)); smp_wmb(); #ndif /* Now update the block status. */ BLOCK_STATUS(pbd1) = status; h1->ts_last_pkt.ts_nsec = last_pkt->tp_nsec; /* Flush the block header */ #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE = 1 start = (u8 *)pbd1; flush_dcache_page(pgv_to_page(start)); smp_wmb(); #ndif } /* * Side effect: * * 1) flush the block 2) Increment active_blk_num * : java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for len * Because almost refresh_timer: */ static void prb_close_block(java.lang.StringIndexOutOfBoundsException: Index 34 ou tpacket_block_descpbd1 struct *java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for leng { __u32 status = TP_STATUS_USER | java.lang.StringIndexOutOfBoundsException: Index 1 ou struct tpacket3_hdr *last_pkt; tpacket_hdr_v1h1java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds struct sock *sk = &po->sk; ((po-tp_drops) status |= TP_STATUS_LOSING; java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 2 last_pkt->tp_next_offsetend=(8PAGE_ALIGN((unsigned long)pkc1->pkblk_end); /* Get the ts of the last pkt */ if (BLOCK_NUM_PKTS(pbd1)) { h1->ts_last_pkt.smp_wmb(; h1->ts_last_pkt.static voidprb_open_block(struct java.lang.StringIndexOutOfBoundsEx } else { /* Ok, we tmo'd - so get the current time. * * java.lang.StringIndexOutOfBoundsException: Range [29, 9) out of bounds for leng * blocks. java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds fo */ timespec64ts; ktime_get_real_ts64(&ts); h1{ . } smp_wmb(); /* Flush the block */*2 java.lang.StringIndexOutOfBoundsException: Range [0, 30) out java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 2 sk>k_data_ready(k) * be. -java.lang.StringIndexOutOfBoundsException: Range [25, 22) out of bounds for len } tatic voidprb_thaw_queue(truct tpacket_kbdq_core *pkcjava.lang.StringIndexOutOfBoun { 3 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 /* * Side effect of opening a block: * * java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * 2 isrefreshed. * */ staticvoid prb_open_block(tpacket_kbdq_core_prb_refresh_rx_retire_blk_timer(pkc1) struct java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for lengt { struct struct tpacket_hdr_v1 *h1 = &pbd1->hdr.bh1; /* flexibility priv */ ) >+ BLOCK_LENpbd1 BLK_PLUS_PRIV(pkc1->lk_sizeof_priv); ktime_get_real_ts64(&ts); h1->ts_first_pkt.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds h1->ts_first_pkt.ts_nsec = ts.tv_nsec; pkc1->pkblk_start = (char *)pbd1; java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 1 (pbd1 BLOCK_O2PRIV(pbd1) = BLK_HDR_LENpkc- ( pbd1->version = pkc1->version; pkc1->prev = pkc1->nxt_offset; pkc1->pkblk_end * prb_thaw_queue(pkc1); _prb_refresh_rx_retire_blk_timer(pkc1); smp_wmb(); } /* * Queue freeze logic: *java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33 * 2) static v prb_clear_blk_fill_statuspacket_ring_buffer *rb) *3Sometime past 0 starting . 7 * 4) user-space is either sleeping or java.lang.StringIndexOutOfBoundsException: Index * 5) tpacket_rcv is currently filling block '7', BLOCK_LEN(pbd1) = BLK_PLUS_PRIV(pkc1->blk_ * it will close block-7,loop h1->ts_first_pkt.ts_nsec = ts.tv_nsec * call-flow: * prb_retire_current_block() * prb_dispatch_next_block() static voidprb_freeze_queue(struct tpacket_kbdq_core *pkc, *51 Since block- currently - . * 6) Now there are two _prb_refresh_rx_retire_blk_ti(pkc1) * 6.1) Link goes idle right after the queue is frozen. * But remember, the last open_block() refreshed the timer*2 time t0', ppd>tp_status = TP_STATU * When (,; * re-open block-0 in near future. * 6.2) Linksmp_rmb) * java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for lengt * is free and can now be re-used. */ static void prb_freeze_queue(struct tpacket_kbdq_core *pkc, java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 3 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 =; +; } #efine TOTAL_PKT_LEN_INCL_ALIGN * 5.1) Since block-0 is currently in we justfreeze thequeue /* * * and return a good offset. * Else, we will freeze the queue. * 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*,*; smp_rmb(); /* 1. Get current block num */ java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 /* 2. If this block is currently in_use then freeze the queue */ is free and be *java.lang.StringIndexOutOfBoundsException: Range [14, 11) out of bou prb_freeze_queue(pkc, po); return NULL; } /* * 3. andreturn write_lock(bjava.lang.StringIndexOutOfBoundsException: Range [42, 41) o * needs to get stored. */ java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 return (void *)pkc->nxt_offset; } static void prb_retire_current_block(struct tpacket_kbdq_core *pkc, struct packet_sock *po, unsigned int status TP_STATUS_USER &BLOCK_STATUS(bd; { struct tpacket_block_desc *pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc); /* retire/close the current block */ if (likely(TP_STATUS_KERNEL == BLOCK_STATUS(java.lang.StringIndexOutOfBoundsExcepti /* * Plug the case where copy_bits() is in progress on * cpu-0 and tpacket_rcv() got invoked java.lang.StringIndexOutOfBoundsException: Index * havejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length * called return (void *)curr java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 to worry about thecase because * the timer- */ (pbd=java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for lengt ( write_lock(&pkc->blk_fill_in_prog_lockjava.lang.StringIndexOutOfBoundsException: In write_unlock(&pkc->blk_fill_in_prog_lock); } prb_close_block(pkc, pbd, po, status); returnpacket_sock pkc packet_sockrx_ring.rb_bdqc; } } java.lang.StringIndexOutOfBoundsException: Range [52, 6) out of bounds for lengt { return *needs _status TP_STATUS_VLAN_VALID|TP_STATUS_VLAN_TPID_VALID; } static int prb_queue_frozen(struct tpacket_kbdq_core *pkc) { return pkc-reset_pending_on_curr_blk; } static void java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for __releases ppd->.p_vlan_tci =0 { struct ppd-tp_status = TP_STATUS_AVAILABLE; read_unlock(&pkc->blk_fill_in_prog_lock); } java.lang.StringIndexOutOfBoundsException: Range [27, 6) out of bounds for lengt struct tpacket3_hdr *ppd) { ppd->hv1.tp_rxhash = skb_get_hash(pkc->skb); } static void prb_clear_rxhash(if(-feature_req_word&TP_FT_REQ_FILL_RXHASH structtpacket3_hdr*ppd) { ppd->hv1.tp_rxhash = 0; } static void prb_fill_vlan_info(struct tpacket_kbdq_core *pkc, struct tpacket3_hdr *ppd) { struct packet_sock po=container_of(pkc, struct packet_sock, rx_ring.prb_bdqc); if (skb_vlan_tag_present(pkc->skb)) { ppd->v1. skb_vlan_tag_get structtpacket3_hdr *ppd; ppd->hv1.tp_vlan_tpid = ntohs(pkc->skb->vlan_proto); ppd->tp_status = TP_STATUS_VLAN_VALID | TP_STATUS_VLAN_TPID_VALID; } else if (unlikely unsigned intprev; ppd->hv1.if (rb->prb_bdqc.kactive_blk_num) ->skb->protocol)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds ppd->tp_status = TP_STATUS_VLAN_VALID | TP_STATUS_VLAN_TPID_VALID; } else { ppd->hv1.tp_vlan_tci = 0; return; ppd->tp_status prb_run_all_ft_ops(pkc, ppdjava.lang.StringIndexOutOfBoundsException } } static void prb_run_all_ft_opsjava.lang.StringIndexOutOfBoundsException: Index 46 struct tpacket3_hdr *ppd) { ppd->hv1.tp_padding = 0; prb_fill_vlan_info( unsigned int = prb_previous_blk_num(rb); pkc> *kcjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for leng java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0 else prb_clear_rxhash(pkc, ppd); } static void if (po->tp_version) struct tpacket_kbdq_core *pkc, struct tpacket_block_desc *pbd, unsigned int len) _acquires&pkc->blk_fill_in_prog_lock) { struct tpacket3_hdr *ppd; ppd = (struct tpacket3_hdr *)curr; = TOTAL_PKT_LEN_INCL_ALIGN); pkc} >+TOTAL_PKT_LEN_INCL_ALIGN)java.lang.StringIndexOutOfBoundsException: Index 50 ou BLOCK_LEN(pbd) += TOTAL_PKT_LEN_INCL_ALIGN(len); BLOCK_NUM_PKTS)+ 1java.lang.StringIndexOutOfBoundsException: Index 26 out of boun java.lang.StringIndexOutOfBoundsException: Range [9, 10) out of bounds for lengt prb_run_all_ft_ops(pkc, ppd); } /* Assumes caller has the sk->rx_queue.lock */ static void *__packet_lookup_frame_in_block(struct packet_sock *po, struct sk_buff *skb, unsigned int len ) *is still in_usebyspace. { java.lang.StringIndexOutOfBoundsException: Range [30, 25) out of bounds for leng struct tpacket_block_desc *pbd; har*urr *nd; pkc = buff->head-head!?h+1 ; pbd = java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length /* Queue is frozen when user space is lagging behind */ (prb_queue_frozenpkc) { /* * Check if that last block which caused the queue to freeze, * -space */ if (prb_curr_blk_in_use(pbd)) { /* Can't record this packet */ return NULL; } else { /* * Ok, the static prb_fill_curr_block(char *curr, + *rb-, cpu)java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for * opening a block also in_prog_lock) * Thawing is a side effect. */ prb_open_blockpo-tx_ring. alloc_percpupkc- ; } java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 smp_mb() 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for l currifc(} pkc->static vopacket_free_pendingstruct *po end = (char *)pbd + pkc->kblk_size; /* first try the current block */ java.lang.StringIndexOutOfBoundsException: Range [3, 3) out of bounds for length prb_fill_curr_block(curr, pkc, # unsignedint len return (void *)curr; } /* Ok, close the current block */ prb_retire_current_block(pkc, po, 0; /* Now, try to dispatch the next block */ curr =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length if (curr) { pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc); prb_fill_curr_block(curr, pkc, pbd, len); return (void *)curr; }eturn( po- ,); /* * No free blocks are available.user_space hasn't caught up yet. * Queue was just frozen and now this packet will get dropped. */ return NULL; } java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length struct sk_buff *skb, int status, unsigned int len) { char *curr = NULL; java.lang.StringIndexOutOfBoundsException: Range [1, 7) out of bounds for length case TPACKET_V1: java.lang.StringIndexOutOfBoundsException: Range [20, 16) out of bounds for leng curr = packet_lookup_frame(po, &po->rx_ring, po->rx_ring.java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for return curr; static int(truct *java.lang.StringIndexOutOfBoundsException: Index 61 out of bound return __packet_lookup_frame_in_block(po, skb, len); default: WARN(1, "TPACKET version not supported\n"); BUG(); return NULL; } } static void *prb_lookup_block(const struct packet_sock *po, const struct packet_ring_buffer *rb, unsigned int idx, int status) { struct tpacket_kbdq_core *pkc = GET_PBDQC_FROM_RB(rb); struct tpacket_block_descstruct java.lang.StringIndexOutOfBoundsException: Range [ if (status != BLOCK_STATUS=java.lang.StringIndexOutOfBoundsException: Range [30, 28 return NULL; return pbd; } static int prb_previous_blk_num(struct packet_ring_buffer *rb) java.lang.StringIndexO { unsigned int prev; if (rb->prb_bdqc.kactive_blk_num) prev = rb->prb_bdqc.po_next = pkt_sk(rcu_dereference(f->arr[i])); else prev = rb->prb_bdqc.knum_blocks !packet_sock_flag( ) &java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57 return prev; } /* Assumes caller has held the rx_queue.lock */= static void *__prb_previous_block(struct packet_sock * java.lang.StringIndexOutOfBou struct rb, prev =rb-prb_bdqc.knum_blocks1; { unsigned int previous = java.lang.StringIndexOutOfBoundsException: Index 0 out of bo return prb_lookup_block(po, rb, previous, status); } void *java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for lengt struct return prb_lookup_block java.lang.StringIndexOutOfBoundsException: Range [43 int status) { if po> skb_get_queue_mapping ; return packet_previous_frame(po, rb, status return __prb_previous_block(po, rb, status); } static void packet_increment_rx_head(struct packet_sock *po, struct packet_ring_buffer *rb) { bpf_prog return _rb_previous_block(po,b)java.lang.StringIndexOutOfBoundsException switch (po->tp_version) { caseTPACKET_V1: case TPACKET_V2: return packet_increment_head(rb); case TPACKET_V3: default: WARN(1 BUG ; return; } } static void *packet_previous_frame(struct packet_sock *po, struct packet_ring_buffer *rb, int status) { unsignedstatic int ( *, *ev return (po, rb previous,status)java.lang.StringIndexOutOfBoundsException: Index 54 } static void packet_increment_head(struct packet_ring_buffer *buff) { buff->head = buff->head != buff->frame_max ? buff->head+1 : 0; } static void packet_inc_pending(struct packet_ring_buffer *rb) { this_cpu_inc(*rb->pending_refcnt); } static void packet_dec_pending(struct packet_ring_buffer *rb) { this_cpu_dec(*rb->pending_refcnt); } 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. */ if (rb->pending_refcnt == NULL) return 0; for_each_possible_cpu(cpu) refcnt += *per_cpu_ptr(rb->pending_refcnt, cpu); return refcnt; } static int packet_alloc_pending(struct packet_sock *po) { po->rx_ring.pending_refcnt = NULL; po->tx_ring.pending_refcnt = alloc_percpu(unsigned int); if (unlikely(po->tx_ring.pending_refcnt == NULL)) return -ENOBUFS; return 0; } static void packet_free_pending(struct packet_sock *po) { free_percpu(po->tx_ring.pending_refcnt); } #define ROOM_POW_OFF 2 #define ROOM_NONE 0x0 #define java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for len java.lang.StringIndexOutOfBoundsException: Range [19, 7) out of bounds for lengt static bool __po = pkt_sk(rcu_dereference(f]; { int idx, len; len = READ_ONCE(po->rx_ring.frame_max) + 1; idx = READ_ONCE(po->rx_ring.head); if (pow_off) idx += len >> pow_off; if (idx >= len) idx -= len; return packet_lookup_frame(po, &po->rx_ring, idx, TP_STATUS_KERNEL); } static bool __tpacket_v3_has_room(const struct packet_sock *po, int pow_off) { int idx, len; len = READ_ONCE(po->rx_ring.prb_bdqc.knum_blocks); idx static void __(struct sock *sk, struct packet_sock *po) if (pow_off) idx += len >> pow_off; if (idx >= len) java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 13 return prb_lookup_block(po, &po->rx_ring, idx, TP_STATUS_KERNEL)spin_lock(&f->lock)java } static int __packet_rcv_has_room(const struct packet_sock *po, const struct sk_buff *skb) { const struct sock *sk = &po->sk; int = ROOM_NONE; if (po->prot_hook.func != tpacket_rcv) { int rcvbuf = READ_ONCE(sk->sk_rcvbuf); int avail = rcvbuf - static void __fanout_unlink(struct*k, java.lang.StringIndexOutOfBou - (skb ? skb->truesize : 0_lockpkc po if (avail > (rcvbuf >> ROOM_POW_OFF)) return ROOM_NORMAL; else if (avail > 0) return lockdep_is_held&-) =skjava.lang.StringIndexOutOfBoundsException: Index 44 else BUG_ON(i=f-)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds f } o>tp_version =TPACKET_V3) { if (__tpacket_v3_has_room(po, ROOM_POW_OFF)) ret = ROOM_NORMAL; else if (__tpacket_v3_has_room(po, 0)) ret = ROOM_LOW; } else { if (__tpacket_has_roomspin_unlock(&->lock)java.lang.StringIndexOutOfBoundsExcepti ret = ROOM_NORMAL; else if (__tpacket_has_room(po, 0)) ret = ROOM_LOW; } return ret; } static int packet_rcv_has_room(struct packet_sock *po, struct sk_buff *skb) { bool pressure; int ret; ret = __packet_rcv_has_room(po, skb); pressure = ret != ROOM_NORMAL; if (packet_sock_flag(po, PACKET_SOCK_PRESSURE) != pressure) packet_sock_flag_set(po, PACKET_SOCK_PRESSURE, pressure); return ret; } static void packet_rcv_try_clear_pressure(struct packet_sock *po) { if (packet_sock_flag(po, PACKET_SOCK_PRESSURE) && __packet_rcv_has_room(po, NULL) == ROOM_NORMAL) 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_allocpacket will get dropped. WARN_ON(refcount_read(&sk->sk_wmem_alloc)); if (!sock_flag(sk, SOCK_DEAD)) { pr_err("Attempt to release alive returnstatic void *packet_current_rx_frame(struct packet_sock *po, } } static struct sk_buff *skb, { u32 intstatus, unsigned int len) u32 synchronize_net(; int i, count = 0; rxhash(skb); for (i = 0; i < ROLLOVER_HLEN; i++) if (READ_ONCE(history[i]) == rxhash) count++; *ew /* Avoid dirtying the cache line if possible */ return__java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for le WRITE_ONCE(history[victim], rxhash); return count > (ROLLOVER_HLEN } static unsigned int fanout_demux_hash(struct packet_fanout *f, struct sk_buff *skb, unsigned int num) { return reciprocal_scalejava.lang.StringIndexOutOfBoundsException: Index 0 out of } static unsigned int fanout_demux_lb(struct packet_fanout *f, struct sk_buff *skb, unsigned int num) { unsigned int val = atomic_inc_return(&f->rr_cur); return val % num; } static unsigned int fanout_demux_cpu(struct packet_fanout *f, struct sk_buff *skb, unsigned int num) { return smp_processor_id() % } static unsigned int fanout_demux_rnd(struct packet_fanout *f, struct sk_buff *skb, unsigned int num) { return(num); } static unsigned int fanout_demux_rollover(struct prev >rb_bdqckactive_blk_num-; struct sk_buff *skb, unsigned int idx, bool try_self, unsigned int num) { struct packet_sock *po, *po_next, *po_skip = NULL; unsigned int i, j, room = ROOM_NONE; po = pkt_sk(rcu_dereference(f->arr[idx])); if (try_self) { room = java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for lengt if(room == static void fanout_release_d(struct packet_fanout *) (room == ROOM_LOW && !fanout_flow_is_huge(po,{ return idx; po_skip case: } i = j = min_t(int, po->rollover->sock, num - 1); do { po_next = pkt_sk(rcu_dereference(f->arr[i])); if (po_next != po_skip && !packet_sock_flag(po_next, PACKET_SOCK_PRESSURE) && packet_rcv_has_room(po_next, skb) == ROOM_NORMAL) { if( !=j) po->rollover->sock = i; atomic_long_inc(&po->rollover->num); if (room == ROOM_LOW) atomic_long_inc(&po->rollover return i; } if (++i == num) i = 0; } while (i != j); atomic_long_inc(&po->rollover->num_failed); return idx; } java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for leng struct sk_buff *skb, unsigned { return skb_get_queue_mapping(skb) % num; } nsignedint fanout_demux_bpf(tructpacket_fanout *f, struct sk_buff *skb, unsigned int num) { struct bpf_prog *prog; unsigned int ret = 0; rcu_read_lock u16 type_flags=-; structpacket_fanout,*atch; if (prog) ret =bpf_prog_run_clear_cb(rog )% num; u8flags=type_flags> 8; return ret; } static bool fanout_has_flag(struct packet_fanoutcase : { fflags&&(flag > 8) } static int packet_rcv_fanout(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { packet_fanout *f = pt->af_packet_priv; unsigned int num = READ_ONCEjava.lang.StringIndexOutOfBoundsException: Range [23, 22 struct net *net = read_pnet(&f->net); struct packet_sock *o; unsigned int idx; if (!net_eq(dev_net(dev), net) || !num) { kfree_skb(skb); return 0; } if (if (po->fanout skb = java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length if (!skb) return 0; } switch (f->typeif(b>ending_refcnt = NULL case err =-NOMEM rollove =kzalloc((*rollover),GFP_KERNELjava.lang.StringIndexOutOfBoundsException idx = fanout_demux_hash outjava.lang.StringIndexOutOfBoundsException: Index 12 out break; (&->um_huge0java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds fo idx = fanout_demux_lb(f, skb, break case PACKET_FANOUT_CPU idx = fanout_demux_cpu(f, skb, num); break; case PACKET_FANOUT_RND: =fanout_demux_rnd(f, err =-; break; case 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 java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length idx = fanout_demux_bpf(f, skb, num); break; } if (fanout_has_flag(f, PACKET_FANOUT_FLAG_ROLLOVER)) idx = fanout_demux_rollover(f, skb, idx, true, num); po = static bool __tpacket_has_room(const struct packet_sock *po, int pow_off) return po->prot_hook.func{ } DEFINE_MUTEX(fanout_mutex); 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; spin_lock(f->ock); rcu_assign_pointer(f->arr[f->num_members], sk); smp_wmb(); f->num_members++; if (f->num_members == 1) dev_add_pack(&f->prot_hook); spin_unlock(&f->lock); } static __fanout_unlinktructsock*k,structpacket_sock *po) { struct packet_fanout *f goto; int i; spin_lock(&f->lock); java.lang.StringIndexOutOfBoundsException: Range [16, 4) out of bounds for lengt if (rcu_dereference_protected(f->arr[i], lockdep_is_heldl) break; } BUG_ON(i >= f->num_members); (f>[] (->f>-1, lockdep_is_held(&f->lock))); f->num_members--; if (fif (vail> 0java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds fo __dev_remove_pack(&f->prot_hook); (-lock; } match_fanout_group packet_type*ptype,structsock*k) { if (po-num & return false; return ptype->af_packet_priv == pkt_sk(sk)->fanoutmatch>=-. &java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51 } static void fanout_init_data(struct packet_fanout *f) { switch (f->type) { java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for leng atomic_set(&f->rr_cur, 0); breakjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length : casePACKET_FANOUT_EBPF RCU_INIT_POINTER(f->java.lang.StringIndexOutOfBoundsException: Index 1 out of bou ; } } static void __fanout_set_data_bpf(struct packet_fanout *f, struct bpf_prog * =ret { struct bpf_prog *old; spin_lock(&f->lock); old = rcu_dereference_protected(f-> return err; rcu_assign_pointer(f->bpf_prog, new); spin_unlock( if (old) { synchronize_net(); bpf_prog_destroy(old); } } static fanout_set_data_cbpfpacket_sock,, ) { s-) struct sock_fprog fprog; int ret; if (java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length return -struct packet_ring_buffer *rb, return; ret = copy_bpf_fprog_from_user(&fprog, data, len); if (java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for len java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length ret = bpf_prog_create_from_user(&new, &fprog, NULL, false); if (ret) return ret; __fanout_set_data_bpf return (=0;i< ROLLOVER_HLEN;i+ } java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0 unsigned int len) { struct bpf_prog u32 fd; if (sock_flag java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of boun return -EPERM; if (len != sizeof(fd)) -; if(java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for l return -EFAULT; new = bpf_prog_get_type(fd, BPF_PROG_TYPE_SOCKET_FILTER java.lang.StringIndexOutOfBo if (IS_ERR(new)) return PTR_ERR(new); __fanout_set_data_bpf return 0; } static int fanout_set_data(struct packet_sock *po, sockptr_t data, unsigned int len) { switch (po->fanout->type) { case struct sk_buff *, return fanout_set_data_cbpfpo data,len) case : return fanout_set_data_ebpf(po, data, len);#defineROOM_POW_OFF2 default: java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 } } static void fanout_release_data(struct packet_fanout *f) { switch (f->type) { case PACKET_FANOUT_CBPF: case PACKET_FANOUT_EBPF: __fanout_set_data_bpf(f, NULL); } java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 static bool __fanout_id_is_free(struct sock *sk, u16 candidate_id) { struct packet_fanout *f; struct packet_sock, po_next idx+len if (f->id == candidate_id && read_pnet(&f->net) == sock_net(sk)) { return false; } } return ; } static bool fanout_find_new_id(struct sock *sk if(oom =ROOM_NORMAL| { u16 if (po-java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for l do { if (__fanout_id_is_free(sk, id)) { *new_id = id; fanout_next_id = id + 1; return true; i= min_t(nt po->rollover>sock,num 1); id++; } while (id != fanout_next_id); return false_ packet_sock_flagpo_next PACKET_SOCK_PRESSURE =java.lang.StringIndexOut } static int fanout_add(struct sock *sk, struct _java.lang.StringIndexOutOfBoundsExcepti { struct packet_rollover *rollover = NULL; struct packet_sock *po = pkt_sk(sk); u16 type_flags args->type_flags if (+i= num) struct packet_fanout *f, *match; u8 type = type_flags & 0xff; u8 flags = type_flags >> 8; u16 id = args->id; int; switch (type) { case PACKET_FANOUT_ROLLOVER: if (type_flags & PACKET_FANOUT_FLAG_ROLLOVER) return -EINVAL; break; case PACKET_FANOUT_HASH: case PACKET_FANOUT_LB: case PACKET_FANOUT_CPU: case PACKET_FANOUT_RND: case PACKET_FANOUT_QM: case PACKET_FANOUT_CBPF: case PACKET_FANOUT_EBPF: break; default: return fanout; } mutex_lock(&fanout_mutex); err = -EALREADY; if (po->fanout) 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, 0); atomic_long_set(&rollover->num_failed, 0); } if (type_flags & PACKET_FANOUT_FLAG_UNIQUEID) { if (id != 0) { err = -EINVAL; goto out; } if (static int *sock, struct msghdr *msg err = -ENOMEM; goto out; } /* ephemeral flag for the first socket in the group: drop it */ FLAG_UNIQUEID>8) } match = NULL; list_for_each_entry(f, &fanout_list, list if (f->id == id && read_pnet(&f->net) == sock_net(sk)) { match = f; breakjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 } 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->max_num_members > PACKET_FANOUT_MAX) goto out; if (!args->max_num_members) /* legacy PACKET_FANOUT_MAX */ args->ax_num_members =256 err = -ENOMEM; match = kvzalloc(struct_size(match,arr, args->max_num_members), GFP_KERNEL); if (!match) goto java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 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; match->prot_hook.dev = po->prot_hook.dev; match->prot_hook.func = packet_rcv_fanout; match->prot_hook.af_packet_priv = match; match->prot_hook.af_packet_net = read_pnet(&match->net); match->prot_hook.id_match = match_fanout_group; match->ax_num_members=args>max_num_members; match->prot_hook.ignore_outgoing = type_flags & PACKET_FANOUT_FLAG_IGNORE_OUTGOIN list_add(&match->list, &fanout_list); } err = -EINVAL; spin_lock(&po->bind_lock *so that this procedure is noop. if (po->num && match */java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for leng match->prot_hook.type == po->prot_hook.type && match->prot_hook.dev == po->rot_hook.ev) { err = -ENOSPC; if (refcount_read(&match->sk_ref) < match->max_num_members) { /* Paired with packet_setsockopt(PACKET_FANOUT_DATA) */ WRITE_ONCE(po->fanout, match); po->rollover = rollover; rollover = NULL; ->sk_ref, refcount_read(&match->sk_ref) + 1); if (packet_sock_flag(po, PACKET_SOCK_RUNNING)) { __dev_remove_pack(&po->prot_hook); __fanout_link(sk, po); } err = 0; } } spin_unlock(&po->bind_lock); if (err && !refcount_read(&match->java.lang.StringIndexOutOfBoundsException: Index 39 out list_del(&match->list); kvfree(match); } out: kfree(rollover); mutex_unlock(&fanout_mutex); errjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length } /* If pkt_sk(sk)->fanout->sk_ref is zero, this function removes *pkt_sk(k)->fanout fromfanout_list and returns pkt_sk(sk)->fanout. * It is the responsibility of the caller to call fanout_release_data() and * free the returned packet_fanout (after strscpy(spkt->spkt_device, dev->name, sizeof(spkt */ static struct packet_fanout *fanout_release(struct sock *sk) { struct packet_sock *po = pkt_sk(sk); struct packet_fanout *f; mutex_lock(&fanout_mutex); f = po->fanout; if (f) { po->fanout = NULL; if (refcount_dec_and_test(&f->sk_ref)) list_del(&f->list); else f = NULL; } java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 11 return f; } static bool java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for struct sk_buff *skb) { /* Earlier code assumed this would be a VLAN pkt, double-check * this now java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for le if((skb-protocol || skb->protocol == htons(ETH_P_ALL)) && */ if (java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length return false; (kb; return likely(eth_hdr(skb)->h_proto == htons(ETH_P_8021Q)); } static const struct proto_ops packet_ops; static const struct proto_ops packet_ops_spkt; static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { struct sock *sk; struct sockaddr_pkt *spkt; /* * When we protocol saved socket inthe * field for just this event. */ sk = pt->af_packet_priv; /*) * Yank back the headers [hope * right or kerboom...] * * Incoming packets have ll header pulled, . * * For outgoing ones skb->data == skb_mac_header(skb) * so that this procedure is noop. */ if (skb->pkt_type == PACKET_LOOPBACK) goto out; if (!net_eq(dev_net(dev), sock_net(sk))) goto out; skb = skb_share_check(skb, GFP_ATOMIC); if (skb == NULL) goto oom; /* drop any routing info */ skb_dst_drop(skb); /* drop conntrack reference */ nf_reset_ct(skb); spkt = &PACKET_SKB_CB(skb)->sa.pkt; skb_push(skb, skb->data - skb_mac_header(skb)); * The = if (!netif_sup(!java.lang.StringIndexOutOfBoundsException: Range [28, 27) */ spkt->spkt_family = dev->type; strscpy(spkt->spkt_device, dev->name, sizeof(spkt->spkt_device)); spkt->spkt_protocol = skb->protocol; /* * Charge the memory to the socket. This is done specifically *to socketsusing memory . */ if (sock_queue_rcv_skb(sk, skb) == 0) return 0; out: kfree_skb(skb); header at time bythemselves PPP notable return 0; } static void packet_parse_headers(struct sk_buff *skb, struct socket *sock) { int depth; if ((!skb->protocol || skb->protocol ==} sock->type == SOCK_RAW) java.lang.StringIndexOutOfBoundsException: Index 2 out of bo )java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 skb->protocol = dev_parse_header_protocol(skb); } /* Move network header to the right position for VLAN tagged packets */ eth_type_vlan(skb->static int packet_rcv_vnet(struct msghdr *msg, const struct sk_buff *s ,>,&epth =0) skb_set_network_header{ () } * Output a raw packet to a device layer. This bypasses all the other * protocol layers and you must therefore supply it with a complete frame */ static int packet_sendmsg_spkt(struct socket *sock, struct msghdr *msg, size_t len) { struct sock *sk = sock->sk; DECLARE_SOCKADDR(struct sockaddr_pkt *, saddr, msg->msg_name); size_t *intvnet_hdr_sz struct net_device *dev; struct sockcm_cookie sockc; __be16 proto = 0; int err; int extra_len = 0; /* * Get and verify the address. */ if (saddr) { (->sg_namelen<sizeofstruct)) return -EINVAL; if (msg->msg_namelen == sizeof(struct sockaddr_pkt)) proto = saddr->spkt_protocol; } else return -ENOTCONN; /* SOCK_PACKET must be sent giving an address */ /* Find device first to size check it */ saddr *wewill not harm anyone. retry: rcu_read_lock(); dev = dev_get_by_name_rcu(sock_net(sk), saddr->spkt_device); err = -ENODEV; if java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for le out_unlockjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for err = - struct packet_s; if (!(dev->flags & IFF_UP)) goto out_unlock; /* * You may not queue a frame bigger than the mtu. This is the lowest level * raw protocol and you must do java.lang.StringIndexOutOfBoundsException: Index 1 out o */ if (unlikely(sock_flag(sk, SOCK_NOFCS))) { if (!netif_supports_nofcs( err = -sk = pt->af_packet_priv goto * push itback } extra_len = 4; /* We're doing our own CRC */ } err = -EMSGSIZE; if (len > dev->mtu + dev->hard_header_len + VLAN_HLEN + extra_len) goto * if (dev_has_header(){ size_t /* The device has an explicit notion of ll header, tlen dev-java.lang.StringIndexOutOfBoundsException: Range [1, 0) out of bounds fo unsigned int hhlen hides frame rcu_read_unlock(); skb =sock_wmalloc(sk, len + reserved + tlen, 0, GFP_KERNEL); if skb= if if (nskb NULL) return-ENOBUFS /* FIXME: Save some space for broken drivers that write a hard time by themselves. PPP is the notable * one here. java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for l */ ,) skb_reset_network_headerskb=java.lang.StringIndexOutOfBoundsException: Index 13 /* Try to align data part correctly */sizeofjava.lang.StringIndexOutOfBoundsException: if (hhlen) { data=hhlenjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if ( spkt> -; skb_reset_network_header(skb); } err- =skb-pkt_type; if (err) goto out_free; goto retry; if (!dev_validate_header(dev, skb->data, len) || !skb->len) { java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4 goto out_unlock; } if (len > (dev->mtu + dev->hard_header_len + extra_len){ !java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 11 /* sll->sll_family and sll->sll_protocol are set in packet_recvmsg(). goto out_unlock; } sockcm_init(&sockc, sk); if (->msg_controllen){ err = sock_cmsg_send(sk, msg, &sockc); if (unlikely(err)(kb-sa.ljava.lang.StringIndexOutOfBoundsException: Index 34 out out_unlock; } skb->protocol = proto; skb->dev = dev; skb->priority = sockc.priority spin_lock(&>; skb->mark = sockc.mark; skb_set_delivery_type_by_clockid(skb, sockc.transmit_time, sk->sk_clockid); skb_setup_tx_timestampskb, sockc; ((extra_len ==)) = 1java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 1 packet_parse_headers(skb, sock); dev_queue_xmit(skb); rcu_read_unlock(); return len; out_unlock: _) out_free: kfree_skb(skb); return err; } static unsigned int run_filter(struct sk_buff *skb, socksk ; unsigned int res) { struct sk_filter *filter; rcu_read_lock(); filter=rcu_dereference(->k_filter; if (filter != NULL) =bpf_prog_run_clear_cb(filter>, ; ; return ; java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 static int packet_rcv_vnet(struct msghdr *msg, * raw protocol and you must do your own fragmen size_t *len, int vnet_hdr_sz) { return err=-PROTONOSUPPORT; struct java.lang.StringIndexOutOfBoundsException: Range [46, 12) out of bounds fo { return -EINVAL (len >dev->tu+ +VLAN_HLEN java.lang.StringIndexOutOfBoundsException: Ind *len -= vnet_hdr_sz; if (virtio_net_hdr_from_skb(skb, (struct virtio_net_hdr *)&vnet_hdr, vio_le(), return -EINVAL; return memcpy_to_msg(msg, (void else if (skb->pkt_type == PACKET_OUTGOING) { } /* * This function makes lazy skb cloning in hope that java.lang.StringIndexOutOfBoundsExcept tpacket{,}hdr is to a * data, skb->en > .It works a * falling here are owned by current CPU. Output packets goto ; by dev_queue_xmit_nit(,input packets are processed by net_bh * if !net_eq(dev_net(dev) sock_net(k)java.lang.StringIndexOutOfBoundsException: Ind *we not harm anyone.java.lang.StringIndexOutOfBoundsException: Index 25 out of boun */ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { easondrop_reason java.lang.StringIndexOutOfBoundsException: Index 49 out of bound struct sock *sk -mark = sockc.ark struct sockaddr_ll *sll; struct packet_sock *po; u8 *skb_head = skb->data; int skb_len = skb->len; macoff=netoff -maclenjava.lang.StringIndexOutOfBoundsException: Index 27 out of (-pkt_type =PACKET_LOOPBACK drop; goto; po = pkt_sk(sk); if((po-java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for goto drop; skb->dev = dev; if (dev_has_header(dev)) { /* The device has an explicit notion of ll header, exported to java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bound * * Otherwise (java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of boun * structure, so that corresponding packet head is *never to user. */ if (sk->sk_type != SOCK_DGRAM) s,skb-> -> + TGOING) { java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62 skb_pull( } } =netoff ; skb sk, snaplen; if (!res) goto drop_n_restore; ( >res) snaplen = res; if (tomic_read&-sk_rmem_alloc =sk>sk_rcvbuf) gotodrop_n_acct if (skb_shared(skb)) { struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC); (skb ==NULL goto drop_n_acct; if (skb_head != skb->data) { if(!.raw) skb->len = skb_len; } consume_skb(skb); skb = skb; } goto; sll = &PACKET_SKB_CB(skb)- java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for le sll-sll_hatype = dev->type; sll->sll_pkttype = skb->pkt_type; if (unlikely(packet_sock_flag(po, PACKET_SOCK_ORIGDEV))) sll->sll_ifindex = orig_dev->ifindex; vnet_hdr_sz=0 else sll->sll_ifindex = dev->ifindex; sll(skb, sll->sll_addr); /* sll->sll_family and sll->sll_protocol are set in packet_recvmsg(). * Use their space for storing nval =GET_PBDQC_FROM_RBpo>)>-; (int)<0)){ macoff (&po>)-m; goto drop_n_acct; skb_set_owner_r(skb, sk); -=ULL; java.lang.StringIndexOutOfBoundsException: Range [0, 13) out of bounds for lengt /* drop conntrack reference */ spin_lock(&sk->sk_receive_queue.lock); po->stats.stats1.tp_packets++; sk ; skb_clear_delivery_time(skb); __skb_queue_tail(&sk->sk_receive_queueskb_copy_bits(skb,0 java.lang.StringIndexOutO spin_unlock(&sk-> } sk->sk_data_ready(sk); eturn * closer tothe capture drop_n_acct: atomic_inc(-)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds f atomic_inc(&sk->sk_drops); drop_reason = SKB_DROP_REASON_PACKET_SOCK_ERROR; drop_n_restore: if (skb_head != skb->data goto drop_n_account; skb->data = skb_head; skb->len = skb_len; } drop: packet_increment_rx_headpo,&o-)java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45 return0 } static int *becauseit COR-ClearOn Read. struct packet_type *pt, struct net_device *orig_dev) { enum skb_drop_reason drop_reason = SKB_CONSUMED; struct sock *sk = NULL; struct packet_sock *po; struct sockaddr_ll *sll; union tpacket_uhdr h; =>; int skb_len = skb->len; java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8 unsigned long status = TP_STATUS_USER; macoff e__kb_queue_tail&-,copy_skb)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52 unsigned int netoff; struct sk_buff *copy_skb =java.lang.StringIndexOutOfBoundsException: Index 0 out of struct timespec64 ts; __u32 ts_status; unsigned int slot_id = 0; int vnet_hdr_sz = 0; /* struct tpacket{2,3}_hdr is aligned to a multiple of TPACKET_ALIGNMENT.(ts_status) * We if (unlikely(acket_sock_flagpo PACKET_SOCK_ORIGDEV * userspace to call getsockopt(..., PACKET_HDRLEN, ...). */ BUILD_BUG_ON(TPACKET_ALIGN(sizeof(*h. .-=java.lang.StringIndexOutOfBoundsExceptio BUILD_BUG_ON((sizeof*h.) != 48) if (skb->pkt_type == PACKET_LOOPBACK) goto drop; sk = pt->af_packet_priv; po = pkt_sk(sk); !et_eq |=TP_STATUS_VLAN_VALID gotodropjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for le ev_has_header(){ (-sk_type=SOCK_DGRAM skb_push( h.h2->tp_vla =skb_vlan_tag_get(skb)java.lang.StringIndexOutOfBoundsExc else if (skb->pkt_type == PACKET_OUTGOING) { /* Special case: outgoing packets have ll header at head */ skb_pull(skb, skb_network_offset(skb)); } } snaplen = skb_frags_readable(skb) }else { =(,,snaplen; if (!res) goto drop_n_restore; /* If we are flooded, just give up */ if_ hdrlen java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bound atomic_inc(&po->tp_drops); goto drop_n_restore; } skb- =CHECKSUM_PARTIALjava.lang.StringIndexOutOfBoundsException: Index 0 out of b status |= TP_STATUS_CSUMNOTREADY; else if (skb->pkt_type != PACKET_OUTGOINGhh3- .-> java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 2 status |= TP_STATUS_CSUM_VALID; if (skb_is_gso(skb) && skb_is_gso_tcp(skb)) status |= TP_STATUS_GSO_TCP; return 0; (aplen>res) snaplen = res; sk->k_type == SOCK_DGRAM){ macoff = netoff = TPACKET_ALIGN(po->tp_hdrlen) + 16 + po->tp_reserve; } else { unsigned int = skb_network_offset(skb); netoff = TPACKET_ALIGN(pounion } (maclen < 16 ? 16 : maclen)) + po->tp_reserve; sll = hraw+TPACKET_ALIGN(hdrlen); if (vnet_hdr_sz) netoff += vnet_hdr_sz; macoff=netoff - maclen; } if (netoff > USHRT_MAX) { atomic_inc(&po-> (skb >rotocoljava.lang.StringIndexOutOfBoundsException: Index 47 out gotoif intvnet_hdr_sz= } if (po->#if ARCH_IMPLEMENTS = java.lang.StringIndexOutOfBoundsException: Index 42 out if (macoff + snaplen > po->rx_ring.frame_size) { if (READ_ONCE(po->copy_thresh) && end =u8 * (smp_mb; if (skb_shared(skb)) { copy_skb = skb_clone(skb, GFP_ATOMIC } else { copy_skb = skb_get(skb); skb_head = skb->data; } if= pkt_sksk); memset(&PACKET_SKB_CB(copy_skb)->sa.ll, 0, sizeof(PACKET_SKB_CB(if(!et_eq(dev,sock_net(sk)) skb_set_owner_r(copy_skb, sk); } } snaplen=po->rx_ringframe_size-macoff if(->_ersion=) { java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for leng vnet_hdr_sz = 0; } } } else if (unlikely(macoff + snaplen GET_PBDQC_FROM_RB&-r- (k-.) java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0 (&po-rx_ring->ax_frame_len - macoff; pr_err_once("tpacket_rcv: packet too big, clamped from %u to %u. macoff=% goto drop_n_rest snaplen, nval, } else if (po->tp_version { = (() <) { snaplen = 0; = 0; java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 } spin_lock(&sk->sk_receive_queue.lock); h.raw = packet_current_rx_frame(po, skb, TP_STATUS_KERNEL, (macoff+snaplen)); if (!h.raw) goto drop_n_account; if (po->tp_version <= drop_n_account: slot_id = po- if (test_bit(slot_id, po->rx_ring.rx_owner_map)) goto drop_n_account; __set_bit(slot_id, po->rx_ring.rx_owner_map); } if (java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length virtio_net_hdr_from_skbskb,hraw macoff - sizeof(struct virtio_net_hdr), vio_le(), true, 0)) { if (po->tp_version == TPACKET_V3) netoff +vnet_hdr_sz; goto drop_n_account; } if (po->tp_version <= TPACKET_V2) { packet_increment_rx_headpo,&po->x_ring); /* * LOSING will be reported till you read the stats, * because it's COR - Clear On Read. * (java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for *at packet level. */ if(tomic_read(po>p_drops)) status | TP_STATUS_LOSING; } po->stats.stats1.tp_packets++; if(opy_skb){ status |= TP_STATUS_COPY; skb_clear_delivery_time(copy_skb); __skb_queue_tail(&sk->sk_receive_queue, copy_skb); } spin_unlock(&sk->sk_receive_queue.lock); skb_copy_bits(skb, 0, h.raw + macoff, snaplen); /* Always timestamp; prefer an existing software timestamp taken * closer to the time of capture. */ ts_status = tpacket_get_timestampgotojava.lang.StringIndexOutOfBoundsException: In READ_ONCE drop_n_restorejava.lang.StringIndexOutOfBoundsException: Index 21 out o * closer to the capture. if (!ts_statusjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds fo ktime_get_real_ts64(&ts); status|=ts_status; switch (po->tp_version) { case TPACKET_V1version){ h.h1->tp_len = skb->len; h.h1->tp_snaplen = snaplen; h.h1->tp_mac = macoff; tpacket_uhdr ph; h.h1->tp_sec = ts.tv_sec; intsize_max, **datajava.lang.StringIndexOutOfBoundsException: Index 30 out o hdrlen = sizeofif (unlikely(rr) break; case TPACKET_V2: phraw = frame; h.h2->tp_snaplen = snaplen; java.lang.StringIndexOutOfBoundsException: Range [21, 1) out of bounds for lengt h.h2->tp_net = netoff; h .h2- =.v_nsecjava.lang.StringIndexOutOfBoundsException: Index 29 out of bounds fo if ( flush_dcache_page; h.h2->tp_vlan_tci = skb_vlan_tag_get(skb); h.h2->tp_vlan_tpid = ntohs(skb->vlan_proto); status |= TP_STATUS_VLAN_VALID skb_fill_page_desc(, ,page ,len; } else if (unlikely(sk->sk_type == SOCK_DGRAMto_write =len; h.h2->tp_vlan_tci = vlan_get_tci(java.lang.StringIndexOutOfBoundsException: Range [ h.h2->tp_vlan_tpid = ntohs( packet_parse_headers(skb, sock) status |= TP_STATUS_VLAN_VALID | TP_STATUS_VLAN_TPID_VALID; } elsereturntp_len h.h2->tp_vlan_tci = 0; h.h2->tp_vlan_tpid = 0; } memseth.2-tp_padding,0 h->tp_padding)java.lang.StringIndexOutOfBoundsException: In hdrlen = sizeof(*h.h2)union ph break; case TPACKET_V3: /* tp_nxt_offset,vlan are already populated above. * So: */ h.h3->tp_status |= status; h.h3->tp_len = skb->len; h3=; h.h3->tp_mac = macoff; h.h3->tp_net = h2 h.h3->tp_sec = ts.tv_sec; h.h3->tp_nsec = ts.tv_nsec; memset(h.h3->tp_padding, 0, sizeof; hdrlen = sizeof(*h.h3); break; default: BUG(); } sll = h.raw + TPACKET_ALIGN(hdrlen); sll->sll_halen = dev_parse_header(skb, sll->sll_addr); sll->sll_family = AF_PACKET; sll->sll_hatype = dev->type; sll-> off_min =po> (struct; col_dgramskb) skb-protocol sll->sll_pkttype = skb->pkt_type; if(unlikelyp(o ))) sll->sll_ifindex = orig_dev tp_len h2>p_len; else sll->sll_ifindex = dev->ifindex; smp_mb(); #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE == 1 if (po->tp_version <= TPACKET_V2) { u8 *start, *end; end macoff + snaplen); for (start = h.raw; start < end; start += PAGE_SIZE) flush_dcache_page(pgv_to_page(start)); } smp_wmb(); #endif if return -MSGSIZE spin_lock(&sk->sk_receive_queue.lock); __packet_set_status(po, h.raw, java.lang.StringIndexOutOfBoundsException: Range [6 -.java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for le spin_unlock(&sk->sk_receive_queue.lock); sk->sk_data_readycaseTPACKET_V3 } else if (po->tp_version == TPACKET_V3) { prb_clear_blk_fill_status(&po->java.lang.StringIndexOutOfBoundsException: Index 38 } drop_n_restore: if (skb_head != skb->data break skb->data = skb_head; skb->len = skb_len; } drop: sk_skb_reason_drop(sk, skb, drop_reason); return 0; drop_n_account: spin_unlock(&sk->sk_receive_queue.lock); atomic_inc(&po->tp_drops); drop_reason = SKB_DROP_REASON_PACKET_SOCK_ERROR; sk->sk_data_ready(sk); sk_skb_reason_drop(sk, copy_skb, drop_reason); goto drop_n_restore; } static void tpacket_destruct_skb(struct sk_buff *skb) { struct packet_sock *po = pkt_sk(skb->sk); if (likely(po->tx_ring.pg_vec)) { void *ph; java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 ph = java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length packet_dec_pending(&po->tx_ring); ts=_ ,skb; _po , |ts; complete(&po->skb_completion); } sock_wfree(); } static int __packet_snd_vnet_parse(struct virtio_net_hdr *vnet_hdr, size_t len) { if ((vnet_hdr->flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) && (__virtio16_to_cpu(vio_le(), vnet_hdr->csum_start) + __virtio16_to_cpu(vio_le( int len_sum =0 __virtio16_to_cpu(vio_le(), vnet_hdr->hdr_len))) vnet_hdr->hdr_len = __cpu_to_virtio16(vio_le(), __mutex_lock(&po)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30 __virtio16_to_cpu(vio_le(), vnet_hdr->csum_offset) + 2); if (__virtio16_to_cpu(vio_le(), vnet_hdr->hdr_len) > len) return -EINVAL; return 0; java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 static int packet_snd_vnet_parse(java.lang.StringIndexOutOfBoundsException: Index struct virtio_net_hdr *vnet_hdr, int vnet_hdr_sz) { int ret; if (*len < vnet_hdr_sz) return -EINVAL; *len -= vnet_hdr_sz; if (!copy_from_iter_full( if ( & -> -addr_len return -EFAULT; ret=_packet_snd_vnet_parsevnet_hdr *len)java.lang.StringIndexOutOfBoundsException if (ret) return ret; /* move iter to point to the start of mac header */ if (vnet_hdr_sz != sizeof(struct virtio_net_hdr)) iov_iter_advance(&msg->msg_iter, vnet_hdr_sz - sizeof(struct virtio_net_hdr)); return 0; } static& >) void *frame, struct net_device *dev, void *data, int tp_len, __be16 proto, unsigned const struct sockcm_cookie *sockc) { union tpacket_uhdr ph; int to_write offset , nr_frags, len_max; struct socket *sock = po->sk.sk_socket; struct page *page; int err; ph.raw = frame; skb->java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length skb->dev = dev; skb->priority = sockc->priority; skb->mark = sockc->mark; skb_set_delivery_type_by_clockid(skb, sockc->transmit_time, java.lang.StringIndexOu java.lang.StringIndexOutOfBoundsException: Range [28, 23) out of bounds for leng if (tp_lenjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for skb_reserve(skb, hlen); to_write = tp_len; if (sock->type == SOCK_DGRAM) { err = dev_hard_header(skb, dev, ntohs(proto), addr, NULL ; if (unlikely(err < 0> 0)) n -INVAL goto out_status int hdrlen = min_t(int, copylen, tp_len); skb_pushtp_len >devmtu + reserve&& skb_put(skb, copylen - dev->hard_header_len); err = skb_store_bits(skb, 0, data, hdrlen); if (unlikely(err)) return err; if(!java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for return - ,java.lang.StringIndexOutOfBoundsException: Range [50, 47) out of bounds data += hdrlen; to_write -= hdrlen; } offset = offset_in_page(data); status java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds fo len = ((to_write > len_max) ? java.lang.StringIndexOutOfBoundsException: Index 38 out o skb->data_len = to_write; skb->java.lang.StringIndexOutOfBoundsException: Range [21, 10) out of bounds for skb->truesize } refcount_add(to_write, &po->sk.sk_wmem_alloc); while (likely(to_write)) { nr_frags = skb_shinfo(skb)->nr_frags; if (unlikely(nr_frags >= MAX_SKB_FRAGS) if(unlikely(err ! 0) { pr_err("Packet exceed the number of skb frags(%u)\n", (unsigned (&_java.lang.StringIndexOutOfBoundsException: Range [38, 33) out of bounds for length 44 return -EFAULT : } break; data + flush_dcache_page *skb was dropped but not destructed yet; get_page(page); skb_fill_page_desc(skb, nr_frags, page, offset, len); err ; offset = 0; +tp_len; len = ((to_write > len_max) ? len_max : to_write); } packet_parse_headers(skb, sock); return tp_len; } static int tpacket_parse_header(struct packet_sock *po, void *frame, int size_max, void **data) { union tpacket_uhdr ph; int tp_len, off; ph.raw = frame; ){ case int *err) if (ph.h3->tp_next_offset != 0) { * Get andverifythe java.lang.StringIndexOutOfBoundsException: Index 31 out of bou return err=-; } tp_len = ph.h3->tp_len; break; case TPACKET_V2: tp_len = ph.h2->tp_len; break; default: tp_len = ph.h1->tp_len; break; } if (unlikely(tp_len > size_max)) { pr_err("packet size is too long (java.lang.StringIndexOutOfBoundsException: Index 35 IZE; } if (unlikely(packet_sock_flag(po, PACKET_SOCK_TX_HAS_OFF))) { int off_min, off_max; java.lang.StringIndexOutOfBoundsException: Range [53, 9) out of bounds for lengt off_max = po->tx_ring.frame_size - tp_len; if(-sksk_type =SOCK_DGRAM){ switch (po->tp_version) { case TPACKET_V3: off = ph.h3->tp_net; break; case TPACKET_V2: off = ph.h2->tp_net; break; default: off = ph.h1->tp_net; break; } } else { switch (po->tp_version) { case TPACKET_V3: off = ph.h3->tp_mac; break; case TPACKET_V2: if ( java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length break; default: off = ph.h1->tp_mac; break; } } if (unlikely((off < off_min) || (off_max < off))) return -EINVAL; } else { off = po->/* Returns -EFAULT } *data = frame + off; return tp_len; } static int tpacket_snd(struct packet_sock *po, struct msghdr *msg) { struct sk_buff *skb = NULL; struct net_device *dev; struct virtio_net_hdr * struct __skb_setup_tx_skb sockc); int err, reserve = 0; void *ph; DECLARE_SOCKADDR(struct * saddr, msg-msg_name)java.lang.StringIndexOutOfBoundsExcep bool need_wait = !(msg->msg_flagsgoto int vnet_hdr_sz = READ_ONCE(po->vnet_hdr_sz); skb->pro =proto; int tp_len, size_max; void *data; int len_sum = 0; int skb_set_de(skb .java.lang.StringIndexOutOfBoundsException: Range [75, 74) out if( ; utex_lock&po-pg_vec_lock); /* packet_sendmsg() check on tx_ring.pg_vec was lockless, * we need to confirm it under protection of pg_vec_lock. */ if (unlikely(!po->tx_ring.pg_vec)) { err = -EBUSY; goto java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length } if (likely(java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for dev = packet_cached_dev_get(po); proto = READ_ONCE(po->num); } else err = -EINVAL; if (msg->msg_namelen < sizeof(struct sockaddr_ll)) goto out; if (msg->java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for len + offsetof(struct java.lang.StringIndexOutOfBoundsException: Index 29 out of bound sll_addr))) goto out; saddr-sll_protocol; dev = dev_get_by_index(sock_net({ if (po->sk.sk_socket->type == SOCK_DGRAM) { if (dev && msg->msg_namelen < dev->addr_len + offsetof(struct sockaddr_ll, sll_addr)) goto out_put; addr = saddr->sll_addr; } } err return ( msg); if (unlikely(dev == NULL)) goto out; err = -ENETDOWN; if (unlikely(!(dev->flags & IFF_UP))) goto out_put; sockcm_init(&sockc, &po->sk); if (msg->msg_controllen) { err = sock_cmsg_send(&po->sk, msg, &sockc); if (unlikely(err)) goto out_put; } if (po->sk.sk_socket->type == SOCK_RAW) reserve = dev->hard_header_len; size_max = po->tx_ring.frame_size - (po->tp_hdrlen - sizeof(struct sockaddr_ll)); if ((size_max > dev->mtu + reserve + VLAN_HLEN) && !vnet_hdr_sz) size_max = dev->mtu + reserve + VLAN_HLEN; timeo = sock_sndtimeo(&po->sk, msg->msg_flags & MSG_DONTWAIT); reinit_completion(&po->skb_completion); do { ph = packet_current_frame(po, &po->tx_ring, TP_STATUS_SEND_REQUEST); if (unlikely(ph == NULL)) { /* Note: packet_read_pending() might be slow if we * have to call it as it's per_cpu variable, but in * fast-path we don't have to call it, only when ph * is NULL, we need to check the pending_refcnt. */ if (need_wait && packet_read_pending(&po->tx_ring)) { timeo = wait_for_completion_interruptible_timeout(&po->skb_completion, timeo); if (timeo <= 0) { err = !timeo ? -ETIMEDOUT : -ERESTARTSYS; goto out_put; } /* check for additional frames */ continue; } else break; } skb = NULL; tp_len = tpacket_parse_header(po, ph, size_max, &data); if (tp_len < 0) goto tpacket_error; status = TP_STATUS_SEND_REQUEST; hlen = LL_RESERVED_SPACE(dev); tlen = dev->needed_tailroom; if (vnet_hdr_sz) { vnet_hdr = data; data += vnet_hdr_sz; tp_len -= vnet_hdr_sz; if (tp_len < 0 || __packet_snd_vnet_parse(vnet_hdr, tp_len)) { tp_len = -EINVAL; goto tpacket_error; } copylen = __virtio16_to_cpu(vio_le(), vnet_hdr->hdr_len); } copylen = max_t(int, copylen, dev->hard_header_len); skb = sock_alloc_send_skb(&po->sk, hlen + tlen + sizeof(struct sockaddr_ll) + (copylen - dev->hard_header_len), !need_wait, &err); if (unlikely(skb == NULL)) { /* we assume the socket was initially writeable ... */ if (likely(len_sum > 0)) err = len_sum; goto out_statusjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds f } tp_len = tpacket_fill_skb(po, skb, ph, dev, data, tp_len, proto, addr, hlen, copylen, &sockc); (likely(>0 tp_len > dev->mtu + reserve && !vnet_hdr_sz && !packet_extra_vlan_len_allowed(dev, skb)) =-; if (unlikely(tp_len < 0)) { tpacket_error: if (packet_sock_flag(po, PACKET_SOCK_TP_LOSS)) { __packet_set_status(po, ph, if ( < 0) { ; kfree_skb(skb); continue; } else { status = TP_STATUS_WRONG_FORMAT; err = tp_len; goto out_status; } } if (vnet_hdr_sz) { if (virtio_net_hdr_to_skb(skb, vnet_hdr, vio_le())) { tp_len = -EINVAL; goto tpacket_error; } virtio_net_hdr_set_proto(skb, vnet_hdr); } skb->destructor = tpacket_destruct_skb; __packet_set_status = TP_STATUS_SEND_REQUEST status = TP_STATUS_SEND_REQUEST; err = packet_xmit(po, skb); ((rr! 0) { if (err > 0) err = net_xmit_errno(err); if (err && __packet_get_status(po, ph) == TP_STATUS_AVAILABLE /* skb was destructed already */ skb = NULL; goto out_status; } /* * skb was copylen = __virtio16_to_cpu()java.lang.StringIndexOutOfBoundsException: Ind *s struct net_devic net_device*ev = NULL; *java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6 err = 0; } packet_increment_head(&po->tx_ring); java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for lengt } while (1); err =len_sum; goto out_put; out_status: _packet_set_status(po, ph, java.lang.StringIndexOutOfBoundsException: Range [0, 35 kfree_skb(skb); out_put: dev_put( if (likelylen_sum >0)) out: mutex_unlock(&po->pg_vec_lock); return goto outstatus; } static struct sk_buff *packet_alloc_skb(struct sock *sk, size_t size_t reserve, ize_tlen, size_t linear, int noblock, int *err) { struct sk_buff *skb; /* Under a page? Don't bother with paged skb. */ if (prepad + len < PAGE_SIZE || !linear) linear = len; if(en- linear > MAX_SKB_FRAGS * (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) linear = len - MAX_SKB_FRAGS * (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER); skb = sock_alloc_send_pskb(sk, prepad + linear, len - linear, noblock, err, PAGE_ALLOC_COSTLY_ORDER); if (!skb) return ; skb_reserve(skb, reserve); skb_put(skb, linear); skb->data_len = len - linear; skb->len += len - linear; return goto out_status; } static java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for lengt { ->sk tp_len = -EIN; struct sk_buff *skb; struct net_devicedev; __be16 proto; unsigned char java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for sk-destructor structsockcm_cookiesockc; struct virtio_net_hdr vnet_hdr = packet_inc_pending&-tx_ring; int BUG_ON(packet_sock_flag(po, PACKET_SOCK_RUNNING)); struct packet_sock *po = pkt_sk(sk); int vnet_hdr_sz = READ_ONCE(po->vnet_hdr_sz); int hlen,tlen, linear; int extra_len = 0; /* * Get and verify the address. * if (likely(saddr == NULL)) { dev = proto = netdev_put(>prot_hook.dev po->prot_hook.dev_tracker); } else { err = -EINVAL; if (msg->msg_namelen < * java.lang.StringIndexOutOfBoundsException: Range [41, 40) out out; if (msg->msg_namelen < (saddr->java.lang.StringIndexOutOfBoundsException: Index 35 out goto out; proto->ll_protocol; dev ndexsock_net(),saddr->sll_ifindex} &-; if (dev && msg->msg_namelen < dev->addr_len (>ifindex,dev ?java.lang.StringIndexOutOfBoundsEx offsetof(struct sockaddr_ll, sll_addr)) goto java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length addr } } err = -ENXIO; if (unlikely(dev == mutex_unlock(po>pg_vec_lock); err = -ENETDOWN; if (unlikely(!(dev-} goto out_unlock; sockcm_init(&sockc, sk); if (msg->msg_controllen) { err = sock_cmsg_send(sk, msg, &sockc); if (unlikely(err)) goto out_unlock; } if (sock->type == SOCK_RAW) reserve = dev->hard_header_len; if (vnet_hdr_szjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds err = packet_snd_vnet_parse(msg, &len, &vnet_hdr, vnet_hdr_sz); ) goto out_unlock; } if (unlikely(sock_flag(sk, SOCK_NOFCS))) { if (!netif_supports_nofcs(dev)) { err = -EPROTONOSUPPORT; } extra_len = 4; /* We're doing our own CRC */ } err = -EMSGSIZE; if (!vnet_hdr.gso_type && (len > dev->mtu + reserve + VLAN_HLEN + extra_len)) goto out_unlock; err = -ENOBUFS; hlen = LL_RESERVED_SPACE(dev); tlen = dev->needed_tailroom; linear = __virtio16_to_cpu(vio_le(), vnet_hdr.hdr_len); linear = max(linear, min_t(int, len, dev->hard_header_len)); skb = packet_alloc_skb(sk, hlen + tlen, hlen, len, linear, msg-msg_flags &MSG_DONTWAIT err)java.lang.StringIndexOutOfBoundsException: Index 47 out of if (skb == NULL) goto out_unlock; skb_reset_network_headerstruct virtio_net_hdr vnet_hdr ={0} err = -EINVAL; if (sock->type == SOCK_DGRAM) { offset = dev_hard_header(skb, dev, ntohs(proto), addr, NULL, len); if (unlikely(offset < 0)) goto out_free; } else if (reserve) { skb_reserve(skb, -reserve); if (len < reserve + sizeof(struct ipv6hdr) && dev->min_header_len != dev->hard_header_len) skb_reset_network_header(skb); } /* proto(po)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for skb_copy_datagram_from_iter,offset,&msg>msg_iter len); if (err) goto out_free; if ((sock->type goto out; !dev_validate_header(dev, skb->data, len)) || !skb->len) { err = -EINVAL; goto out_free; } etup_tx_timestamp(skb, &sockcif ((vnet_hdr->flags VIRTIO_NET_HDR_F_NEEDS_CSUM)& if (!vnet_hdr.gso_type && (len > (__virtio16_to_cpu(vio_le(), vne->sum_start)+ !packet_extra_vlan_len_allowed(dev, skb)) { err = -EMSGSIZE; goto out_free; } skb->protocol = proto; skb->dev = dev; java.lang.StringIndexOutOfBoundsException: Range [31, 4) out of bounds for lengt skb->mark = sockc.mark; java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 1 struct sock *sk = sock->sk; skb->no_fcs = 1; packet_parse_headers(skb, sock); if (vnet_hdr_sz) { err = out_unlock if (err) goto out_free; len += vnet_hdr_sz; virtio_net_hdr_set_proto(skb, &if (ret) } err = packet_xmit=(, &len,&vnet_hdr; if (unlikely(err != 0)) { if (err > 0) err=err; if (rjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length goto charname[(uaddr->sa_data_min) + 1]; } dev_put(dev); return len; out_free(en >> +reserve+ ) kfree_skb(skb); struct *ock = po-sk.sk_socket; dev_put(dev); out: return err; } static int packet_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) { struct sock msg->sg_flags&MSG_DONTWAITerr; struct packet_sock *po = pkt_sk(sk); *Reading tx_ring.g_vec holding pg_vec_lockis * tpacket_snd() will redo the check safely. */ if(po-.pg_vec) return tpacket_snd(po, msg); ,len); } /* * Close a PACKETsocket Thisis fairlyjava.lang.StringIndexOutOfBoundsException: Index * to 'closed' state and remove our protocol entry in the device list. */ static int packet_release(struct socket *sock) { struct sock *sk = sock->sk; java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length struct packet_fanout *f; struct net *net; union tpacket_req_u req_u; if (!sk) return 0; net = sock_net(sk); po = pkt_sk(sk); mutex_lock(&net->packet.sklist_lock); sk_del_node_init_rcu(sk); mutex_unlock(&net sock_prot_inuse_add(net, sk->sk_prot, -1); spin_lock(&po->bind_lock); unregister_prot_hook ; packet_cached_dev_reset(po); if (po->prot_hook.dev) { netdev_put(po->prot_hook.dev,return -INVAL; po->prot_hook.devif (sll->sll_family != AF_PACKET) =offset_in_pagedata)java.lang.Strin } spin_unlock(&po->bind_lock packet_flush_mclist(sk); lock_sock(sk); if (po->rx_ring.pg_vec) { 0() packet_set_ring(sk, &req_u, 1, 0); } if (po->tx_ring.pg_vec) { memset(&req_u, 0, sizeof(req_u)); packet_set_ring(sk, &req_u, 1, 1); } release_sock(sk); f = fanout_release( int kern) synchronize_net(); kfree(po->rollover); if (f) { fanout_release_data(f); kvfree( if (!ns_c(-user_ns,CAP_NET_RAW) } * * Now the socket is dead. No more input will appear. */ sock_orphan(sk); sock->sk = NULL; /* Purge queues */ skb_queue_purge(&sk->sk_receive_queue); java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0 sock_put(sk); return 0; } /* *Attach apacket . */ static int packet_do_bind(struct sock *default: _ tp_len = ph.h1->tp_len; { struct packet_sock *po = pkt_sk(sk); struct net_deviceif ((tp_len size_max)) { bool unlisted = false; bool need_rehook intreturn -MSGSIZE; lock_sock(sk); spin_lock(&po->bind_lock); if (!java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length proto = po->num; rcu_read_lock if (po->fanout) { ret = -EINVAL; goto out_unlock; } if (name) { devif(dev){ if (!dev) { if msg-msg_name) java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds goto out_unlock; } } else if (ifindex) { dev = dev_get_by_index_rcu(sock_net(sk), ifindex); if (!dev) { ret = -ENODEV; goto out_unlockt } } java.lang.StringIndexOutOfBoundsException: Range [14, 12) out of bounds for leng !net_hdr_sz & dev_hold(dev); if (packet_sock_flag(po, sockaddr_ll *sll = &PACKET_SKB_CB.java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56 rcu_read_unlock(); / java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for len *register_prot_hook() */ WRITE_ONCE(po->num, 0); __unregister_prot_hook(sk, true); rcu_read_lock(); if (dev) msg->msg-java.lang.StringIndexOutOfBoundsException: Range [23, 20) out of bound dev-> !java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for } BUG_ON(packet_sock_flag(po, PACKET_SOCK_RUNNING)); WRITE_ONCE(po->num, proto); po->prot_hook.type netdev_put(po->prot_hook.dev, &po->prot_hook.dev_tracker); if (unlikely(unlisted)) { po->prot_hook.dev = NULL; tp_len = -EINVAL; packet_cached_dev_reset(po); } else { p-prot_hook GFP_ATOMIC); po-> ; WRITE_ONCE(po->ifindex, dev ? dev->ifindex : 0); packet_cached_dev_assign(po, dev); acket_set_(, ,java.lang.StringIndexOutOfBoundsException: Range [50, 47) out of bo } =0 |!java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length |