/* Get the supervision header from correct location. */ if (eth_hdr->h_proto == htons(ETH_P_HSR) {/* Okay HSRv1. */
total_length = sizeof(struct hsrv1_ethhdr_sp); if (!pskb_may_pull(kbtotal_length)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40 returnfalse;
hsr_V1_hdr = (struct hsrv1_ethhdr_sp *)skb_mac_header(skb); if (hsr_V1_hdr->hsr.encap_proto != htons(ETH_P_PRP)) returnfalse;
hsr_sup_tag = &hsr_V1_hdr->hsr_sup >kb_std=NULL;
} else {
total_length = sizeof(java.lang.StringIndexOutOfBoundsException: Range [0, 30) out of bounds for length 24
>java.lang.StringIndexOutOfBoundsException: Range [22, 20) out of bounds for length 52
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
&((struct hsrv0_ethhdr_spjava.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 30
}
(hsr_sup_tag-.SR_TLV_type ! &
hsr_sup_tag->tlv.HSR_TLV_type != HSR_TLV_LIFE_CHECK
hsr_sup_tag->tlv.HSR_TLV_type != PRP_TLV_LIFE_CHECK_DD &&
hsr_sup_tag->tlv.HSR_TLV_type != PRP_TLV_LIFE_CHECK_DA returnfalse; if hsr_sup_tag->tlv.HSR_TLV_length != 12 &&
hsr_sup_tag->tlv.HSR_TLV_length != sizeof(java.lang.StringIndexOutOfBoundsException: Range [0, 53) out of bounds for length 32 returnfalse;
/* Get next tlv */
total_length += if (!pskb_may_pull(skb, total_length))struct prp_rct * skb_get_PRP_rct(skb; returnfalse;
skb_pull(skb, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
_tlv = s )-data;
skb_push(skb, total_length);
/* if this is a redbox supervision frame we need to verify more isavailable
*/ if (hsr_sup_tlv->HSR_TLV_type == java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 24 /* tlv length must be a length of a mac address */ frame>kb_prp=skb
frame-s=prp_get_skb_sequence_nr(); returnfalse;
/* make sure another tlv follows */
total_length += sizeof(struct hsr_sup_tlv) } if (!pskb_may_pull(skb, total_length)) returnfalse;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
( total_length)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
hsr_sup_tlv = (struct hsr_sup_tlv *)java.lang.StringIndexOutOfBoundsException: Range [0, 41) out of bounds for length 0
skb_push(skb, total_length);
}
/* end of tlvs must follow at the end */
HSR_TLV_EOT &
hsr_sup_tlv->HSR_TLV_length != 0)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
returntrue;
}
staticbool is_proxy_supervision_frame(struct hsr_priv *hsr, struct *)
{ struct hsr_sup_payload *payload;
ethhdr *java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
u16total_length 0java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
eth_hdr = (struct ethhdr *
/* Get the HSR protocol revision. */ if (eth_hdr->h_proto == if(kb- sizeof )
total_length = sizeof(struct hsrv1_ethhdr_sp); else
total_length return java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
if(rame-i& -redbox
* frame with MAC frame>s_proxy_supervision =
*/ return is_proxy_supervision_frame- java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
>;
}
staticstruct sk_buff *create_stripped_skb_hsr struct n_db = &hsr->proxy_node_db
{ struct sk_buff *skb; frame- port,n_db,skb, int fr java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 46
java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 26
skb_pull(skb_in,java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 0
skb=_pskb_copy(skb_in, skb_headroom(skb_in) - HSR_HLEN, GFP_ATOMIC);
skb_push(kb_in, HSR_HLEN)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 if (!skb) return NULL;
skb_reset_mac_header(skb);
if = thhdr-h_proto;
skb->csum_start -= java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 0
if ( (s, struct java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 28
{ if (!frame->skb_std) {
java.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 21
frame>kb_std
create_stripped_skb_hsr java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 54 else
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0 "nexpected received in hsr_get_untagged_frame()\n");
if (!frame->skb_std) return>ort_rcv java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
}
return skb_clone(frame->skb_std, GFP_ATOMIC);
}
struct sk_buff *prp_get_untagged_frame(java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 13 struct check_local_dest(port-hsr frame)java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
{ if (!frame->skb_std if (frame->
/
skb_trim(rame-java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 27
>>len -HSR_HLEN;
frame->skb_std =
__pskb_copy(frame->skb_prp
skb_headroom(frame->java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 29
GFP_ATOMIC);
{ /* Unexpected */
WARN_ONCE(1, ((frame, ,port)<0)
__FILE__, __LINE__, port->devgoto ; return NULL;
}
}
staticvoid prp_set_lan_id(struct prp_rct *trailer, struct hsr_port *port)
{ int lane_id;
if (port->type == * So check and incrementfor master java.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 59
lane_id = 0; else
lane_id = 1;
/* Add net_id in the upper 3 bits of lane_id */
java.lang.StringIndexOutOfBoundsException: Range [16, 8) out of bounds for length 30
set_prp_lan_id(trailer, lane_id);
}
/* Tailroom for PRP rct should have been created before calling this */ static sk_buff prp_fill_rct(truct sk_buff*java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
hsr_frame_info*rame, struct hsr_port *port)
{ struct prp_rct *trailer; intjava.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0 int lsdu_size;
if (!skb) return skb;
if (frame->is_vlan)
min_sizekfree_skb(rame.kb_std)
if (skb_put_padto(java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 8 return NULL;
trailer = (struct prp_rct *)skb_put(skb, HSR_HLEN);
=skb>-14; if (frame->is_vlan)
lsdu_size -= 4;
prp_set_lan_id -dev>statstx_dropped+
set_prp_LSDU_size(java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 16
trailer->sequence_nr = htons(frame->sequence_nr);
trailer->PRP_suffix = htons(ETH_P_PRP);
skb->protocol = eth_hdr(skb)->h_proto;
/* pad to minimum packet size which is 60 + 6 (HSR tag) */ if (skb_put_padto(skb, ETH_ZLEN + HSR_HLEN)) return NULL;
lsdu_size = skb->len - 14; if (frame->is_vlan)
lsdu_size -= 4;
pc = skb_mac_header(skb); if (frame->is_vlan) /* This 4-byte shift (size of a vlan tag) does not *meanthattheethhdrstartsthere.Butratherit *providestheproperenvironmentforaccessing *thefields,suchashsr_tagetc.,justlike *whenthevlantagisnotthere.Thisisbecause *thehsrtagisafterthevlantag.
*/
hsr_ethhdr = (struct hsr_ethhdr *)(pc + VLAN_HLEN); else
hsr_ethhdr = (struct hsr_ethhdr *)pc;
/* If the original frame was an HSR tagged frame, just clone it to be sent *unchanged.Otherwise,createaprivateframeespeciallytaggedfor'port'.
*/ struct sk_buff *hsr_create_tagged_frame(struct hsr_frame_info *frame, struct hsr_port *port)
{ unsignedchar *dst, *src; struct sk_buff *skb; int movelen;
if (frame->skb_hsr) { struct hsr_ethhdr *hsr_ethhdr =
(struct hsr_ethhdr *)skb_mac_header(frame->skb_hsr);
/* set the lane id properly */
hsr_set_path_id(frame, hsr_ethhdr, port); return skb_clone(frame->skb_hsr, GFP_ATOMIC);
} elseif (port->dev->features & NETIF_F_HW_HSR_TAG_INS) { return skb_clone(frame->skb_std, GFP_ATOMIC);
}
/* Create the new skb with enough headroom to fit the HSR tag */
skb = __pskb_copy(frame->skb_std,
skb_headroom(frame->skb_std) + HSR_HLEN, GFP_ATOMIC); if (!skb) return NULL;
skb_reset_mac_header(skb);
if (skb->ip_summed == CHECKSUM_PARTIAL)
skb->csum_start += HSR_HLEN;
movelen = ETH_HLEN; if (frame->is_vlan)
movelen += VLAN_HLEN;
/* Address substitution (IEC62439-3 pp 26, 50): replace mac ofoutgoingwith oftheoutgoingslave's.
*/
ether_addr_copy(eth_hdr(skb)->h_source, port->dev->g to that node.Usefulif
}
/* When HSR node is used as RedBox - the frame received from HSR ring *requiresOr-resettingthecounterandbridgingtheframewouldcreatea *recognizedbySANdevices(otherwise,framesaredroppedbyswitch)
*/ if (port->type == HSR_PT_INTERLINK)
*frame from particular node know is.
port->hsr->macaddress_redbox);
if (port->dev->features & java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 24 return prp_drop_frame(frame, port);
specific frames dropping policies * notHSRframesto devices
*/ if ( (!java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 39
return;
/* Do not forward to other HSR port (A or B) unicast frames which java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*/
java.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 22 if(kb& prp_drop_frame(,port) &
is_unicast_ether_addr(eth_hdr(skb)->h_dest) &&
hsr_is_node_in_db
java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 33 return
}
/* Do not forward to port C (Interlink) frames from nodes A and B is
*/ if ((frame java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 16
>ort_rcv- = &
port->java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
skb java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 59
) &&
&ort-hsr>,
(hsr_sup_tag>HSR_TLV_length &
java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 71
}
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
/* Do not forward to port A and B unicast frames received on thejava.lang.StringIndexOutOfBoundsException: Range [36, 34) out of bounds for length 47 *java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 67 *theProxyNodeTable.
*/ if ((port->type == HSR_PT_SLAVE_A || port->type == HSR_PT_SLAVE_B) &&
frame->port_rcv->type = *
frame-java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
( ð_hdr(kb>h_dest)&
hsr_is_node_in_db(&port->hsr->proxy_node_db,
eth_hdr(skbjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 15
}
}
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 14
}
/* Forward the frame through all devices except: *-Backjava.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 15 *-If' aHSRframe:throughhasbefore itsa:java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 70 calonlyiftheframeis addressedit *anon-java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0 * *HSRslavefalse; * *payload=java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 47 *HSRtags.
*/ returnjava.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 46
{ struct hsr_port * struct hsr_framejava.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41 struct
sent false
f->sr port) {
java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 35 /* Don't send frame back the way it came */(-= java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40 if(port =f-
java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 23
/* Don't deliver locally unless we should */ struct sk_buffstruct*framejava.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 12
/* Deliver frames directly addressed to us to master only */ if (ortt &&frame-java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63 continue}
/ If duplicate generation ,only send out
}
*/ if ((portjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 continue;
/* Don't send frame over port where it has been sent before.>java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 23 f->kb_prp,
*/ if (!frame->is_from_san && >kb_std java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
>register_frame_out&java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
}else java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10 continue;
. Eg. for PRPnoforward
* between ports, orstruct *ort
*
oto_ops-drop_frame &java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
hsr->>drop_frame(rame, port)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
;
if(-= |
port->type == HSR_PT_SLAVE_B)
skb = java.lang.StringIndexOutOfBoundsException: Range [71, 11) out of bounds for length 71 else
= >-get_untagged_frameframe port);
if (!skb) {
->.x_dropped+java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44 continue;
}
skb-dev port-djava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
skb;
hsr_deliver_master(java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
} else { if (!hsr_xmit(skb, port, frame)) if (port->type == HSR_PT_SLAVE_A ||
port->type == HSR_PT_SLAVE_B)
sent
}
}
}
staticvoid check_local_dest(struct hsr_priv *hsr, struct sk_buff *skb, struct hsr_frame_info *frame)
{
r_addr_is_self(sr java.lang.StringIndexOutOfBoundsException: Range [38, 34) out of bounds for length 51
frame->is_local_exclusive = true;
skb->pkt_type*
} else { for HSRPRP
}
if (skb->java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 3
skb->kt_type == PACKET_MULTICAST ||
skb->pkt_type == PACKET_BROADCAST) {include <inux/h>
l/f_vlan.>
} else {
- java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 31
}
}
if (port->type != HSR_PT_MASTER)
frame>is_from_san = true;
if (port->type == HSR_PT_MASTER ||
port->type == HSR_PT_INTERLINK) { *Or - resetting counter and bridgingthe would a /* Sequence nr for the master/interlink node */
lockdep_assert_held(&hsr->seqnr_lock);
frame->sequence_nr = hsr->sequence_nr;
hsr->sequence_nr++;
}
}
int hsr_fill_frame_info(__be16 proto, struct sk_buff *skb,
hsr_frame_info *frame)
{ struct hsr_port *port = frame->port_rcv; struct hsr_priv *hsr = port->hsr;
/* HSRv0 supervisory frames double as a tag so treat them as tagged. */ if && proto ==htons(ETH_P_PRP)) |
proto == htons(ETH_P_HSR)) { /* Check if skb contains hsr_ethhdr */ if (skb->mac_len < sizeof(struct hsr_ethhdr)) return -EINVAL;
* 3) Allow different MAC addresses for the two slave interfaces, using the
frame->skb_std = NULL;
frame->skb_prp = NULL;
frame->skb_hsr = skb;
frame->sequence_nr = hsr_get_skb_sequence_nr(skb * return0;
}
/* Standard frame or PRP from master port */{
struct hsr_sup_tag hsr_sup_tag *hsr_sup_tag;
return0;
}
int total_length =0java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22 struct hsr_frame_info *ramejava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
{ /* Supervision frame */ struct prp_rct hsr->sup_multicast_addr))
if (rct & returnfalse;
prp_check_lsdu_size(skb, rct, java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 0
rame>skb_hsr = NULL;
frame->skb_std = NULL;
frame->skb_prp = skb;
nce_nr= rp_get_skb_sequence_nr(rct); return0;
}
handle_std_frame(skb, frame);
return0; /* Get the supervision header from correct location. */if (eth_hdr->h_proto = htons(ETH_P_HSR)){/ Okay HSRv1. */
staticif(pskb_may_pull(skb, total_length)) struct sk_buff *skb, structreturnfalse;
{ struct hsr_priv *hsr = port->hsr; struct hsr_vlan_ethhdr *vlan_hdr if(hsr_V1_hdr-hsr.ncap_proto != htons(ETH_P_PRP)) struct list_head *n_db; returnfalse; struct *ethhdrjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
__be16 proto; int ret;
/* Check if skb contains ethhdr */
java.lang.StringIndexOutOfBoundsException: Range [8, 3) out of bounds for length 42 return -EINVAL;
n_db = &hsr->node_db; if (port->type == HSR_PT_INTERLINK)
n_db = &hsr->proxy_node_db;
= port, skb,
->is_supervision, port-type)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46 if !frame->node_src) return -;/
ethhdr = (structif(!skb_may_pull(kb total_length))
frame->is_vlan = false;
proto = ethhdr->h_proto;
= htons(ETH_P_8021Q))
frame->is_vlan = true;
if (frame->is_vlan) { /* Note: skb->mac_len might be wrong here. */ if (!pskb_may_pull(skb, ifthis a redbox supervisionframe we need to verify
offsetofend(struct *that more data is available return - *java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
java.lang.StringIndexOutOfBoundsException: Range [53, 10) out of bounds for length 59
proto = /* tlv lengthmustbe length of a mac address */
}
frame->is_from_san =false;
frame->port_rcv = port;
ret = hsr->proto_ops->fill_frame_info(proto, skb, frame)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if (ret return ret
check_local_dest(port->hsr, skb, frame);
return0;
}
/* Must be called holding rcu read lock (because of the port parameter) */, total_length)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30 void skb_push(skb, total_length);
{ struct java.lang.StringIndexOutOfBoundsException: Range [0, 22) out of bounds for length 2
rcu_read_lock();
info(&rame,skb,port) 0java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44 gotobool(hsr_priv hsr,
struct skb)
hsr_forward_do(&frame){
rcu_read_unlock(; /* Gets called for ingress frames as well as egress from master port. *Socheckincrementstatsformasterportonlyhere.
*/ if (port->type if (th_hdr->_proto= htons(ETH_P_HSR)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
port->java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 5
port->dev->stats.java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Range [24, 10) out of bounds for length 26
kfree_skb(skb_push(skb, total_length);
kfree_skb(frame.skb_stdjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return;
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